WO2016067564A1 - リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物及びその製造方法、リアルステッチ表皮用塩化ビニル樹脂成形体及びその製造方法、並びに、積層体 - Google Patents
リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物及びその製造方法、リアルステッチ表皮用塩化ビニル樹脂成形体及びその製造方法、並びに、積層体 Download PDFInfo
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- WO2016067564A1 WO2016067564A1 PCT/JP2015/005285 JP2015005285W WO2016067564A1 WO 2016067564 A1 WO2016067564 A1 WO 2016067564A1 JP 2015005285 W JP2015005285 W JP 2015005285W WO 2016067564 A1 WO2016067564 A1 WO 2016067564A1
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- Prior art keywords
- vinyl chloride
- chloride resin
- powder
- real
- resin composition
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/003—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/08—Coating a former, core or other substrate by spraying or fluidisation, e.g. spraying powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/18—Slush casting, i.e. pouring moulding material into a hollow mould with excess material being poured off
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K37/00—Dashboards
- B60K37/20—Dashboard panels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3008—Instrument panels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/003—Interior finishings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/06—Polymer mixtures characterised by other features having improved processability or containing aids for moulding methods
Definitions
- the present invention provides a powder-formable vinyl chloride resin composition that provides a molded article having excellent flexibility at low temperatures and high real-stitching properties (hardness to crack at a site modified by sewing), and for the above-mentioned real-stitch skin
- powder moldable vinyl chloride resin composition powder moldability vinyl chloride resin composition for real stitch skin formed by powder molding of powder moldable vinyl chloride resin composition for real stitch skin, chloride for real stitch skin
- the present invention relates to a method for producing a vinyl resin molded body, and a laminate having the vinyl chloride resin molded body for a real stitch skin and a foamed polyurethane molded body.
- the automobile instrument panel has a structure in which a foamed polyurethane layer is provided between a skin made of a vinyl chloride resin and a base material.
- the skin made of vinyl chloride resin changes color over time and its heat aging resistance decreases.
- One of the causes of the discoloration of the skin is a chemical reaction that occurs with the transition of the tertiary amine used as a catalyst during the formation of the foamed polyurethane layer to the skin made of vinyl chloride resin.
- a granular catcher agent that traps volatile organic compounds generated in the foamed polyurethane layer is covered with a sheet of open-cell foam, and near the sealing part of the foamed polyurethane layer end by the skin and the substrate.
- a polyurethane molded body a skin layer containing a vinyl chloride resin and covering at least one surface of the polyurethane molded body, and an amine catcher agent layer interposed between the polyurethane molded body and the skin layer.
- Molded bodies have been studied (see, for example, Patent Document 3).
- the amine catcher agent is easy to volatilize, and the transition of tertiary amine to the skin made of vinyl chloride resin cannot be prevented for a long time, so even in this molded product, the skin can be prevented from discoloring due to the chemical reaction for a long time.
- the heat aging resistance of the epidermis is reduced.
- a vinyl chloride resin composition for powder molding in which a specific trimellitate plasticizer is blended has been studied as a raw material for the skin of automobile interior materials (for example, see Patent Document 4).
- the blending amount of the plasticizer must be increased. A sticky feeling derived from the plasticizer occurs.
- a vinyl chloride resin composition for powder molding containing 100 parts by mass of vinyl chloride resin particles composed of a vinyl chloride resin having an average polymerization degree of 1500 or more and 110 to 150 parts by mass of a specific trimellitate plasticizer. (For example, refer patent document 5).
- JP 2007-216506 A JP-A-8-90697 Japanese Patent Publication No.4-26303 Japanese Patent Laid-Open No. 2-138355 International Publication No. 2009/107463
- the problem to be solved by the present invention is to provide a powder moldable vinyl chloride resin composition for real stitch skin that gives a molded article having excellent flexibility at low temperatures and high real stitch properties.
- Another problem to be solved by the present invention is that the above-mentioned powder-formable vinyl chloride resin composition for real-stitch skin is powder-molded and has excellent flexibility at low temperatures and high real-stitching properties.
- the present invention provides a vinyl chloride resin molded body for stitched skins and a laminate having the above-mentioned vinyl chloride resin molded body for real stitched skins and a polyurethane foam molded body.
- vinyl chloride resin particles (a) having an average degree of polymerization of 1200 to 5000, trimellitic acid ester plasticizer (b), and an average degree of polymerization.
- a powder moldable vinyl chloride resin composition for real stitch skins containing 1000 to 5000 vinyl chloride resin fine particles (c), and has a particularly excellent low-temperature flexibility and a molded article having high real stitch properties.
- the present invention has been completed.
- the present invention includes a vinyl chloride resin particle (a) having an average degree of polymerization of 1200 or more and 5000 or less, a trimellitic acid ester plasticizer (b), and a vinyl chloride resin fine particle (c) having an average degree of polymerization of 1000 or more and 5000 or less.
- a powder moldable vinyl chloride resin composition for real stitch skins refers to particles having a particle size of 30 ⁇ m or more, and “resin particles” refers to particles having a particle size of less than 30 ⁇ m.
- the vinyl chloride resin particles (a) preferably have an average particle diameter of 50 ⁇ m or more and 500 ⁇ m or less.
- a preferable average particle size of the vinyl chloride resin fine particles (c) is 0.1 ⁇ m or more and 10 ⁇ m or less.
- the powder formable vinyl chloride resin composition for real stitch skin of the present invention preferably contains vinyl chloride resin fine particles (d) having an average degree of polymerization of less than 1000.
- a preferable average particle size of the vinyl chloride resin fine particles (d) is 0.1 ⁇ m or more and 10 ⁇ m or less.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention preferably contains a polar group-modified silicone oil (e).
- the preferred use of the powder formable vinyl chloride resin composition for real stitch skin of the present invention is powder slush molding.
- the present invention also provides a real stitch skin vinyl chloride resin molded article obtained by powder slush molding the above-mentioned powder moldable vinyl chloride resin composition for real stitch skin.
- the vinyl chloride resin molded body for the real stitch skin is preferably sewn with a thread.
- the vinyl chloride resin molded body for the real stitch skin is preferably for an automobile instrument panel skin.
- the present invention is a laminate having a foamed polyurethane molded product and the above-mentioned vinyl chloride resin molded product for real stitch skin.
- the laminate is preferably a laminate for an automobile instrument panel.
- the present invention provides the above-mentioned real stitch skin powder comprising mixing the vinyl chloride resin particles (a), the trimellitic acid ester plasticizer (b), and the vinyl chloride resin fine particles (c).
- This is a method for producing a body-moldable vinyl chloride resin composition.
- the manufacturing method of the powder moldability vinyl chloride resin composition for real stitch skins is the said vinyl chloride resin particle (a), the said trimellitic acid ester plasticizer (b), and the said vinyl chloride resin fine particle (c).
- the present invention provides a powder molding for real stitch skin produced according to the method for producing a powder moldable vinyl chloride resin composition for real stitch skin or a powder moldable vinyl chloride resin composition for real stitch skin. It is a manufacturing method of the vinyl chloride resin molding for real stitch skins including carrying out the powder slush molding of the property vinyl chloride resin composition.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention provides a molded article having excellent flexibility at low temperatures and high real stitch properties.
- the powder-formable vinyl chloride resin composition for real stitch skin of the present invention comprises vinyl chloride resin particles (a) having an average polymerization degree of 1200 or more and 5000 or less, trimellitic acid ester plasticizer (b), and an average polymerization degree. And vinyl chloride resin fine particles (c) having a molecular weight of 1000 or more and 5000 or less, and optionally further containing vinyl chloride resin fine particles (d) having an average degree of polymerization of less than 1000, polar group-modified silicone oil (e), and additives. .
- vinyl chloride resin particles (a) having an average degree of polymerization of 1200 or more and 5000 or less, vinyl chloride resin particles (c) having an average degree of polymerization of 1000 or more and 5000 or less, and vinyl chloride resin particles having an average degree of polymerization of less than 1000 examples include a copolymer containing vinyl chloride units, preferably 50% by mass or more, more preferably 70% by mass or more, in addition to a vinyl chloride homopolymer.
- comonomers of the vinyl chloride copolymer include olefins such as ethylene and propylene; halogenated olefins such as allyl chloride, vinylidene chloride, vinyl fluoride, and ethylene trifluoride; vinyl acetate and propionic acid.
- Carboxylic acid vinyl esters such as vinyl; vinyl ethers such as isobutyl vinyl ether and cetyl vinyl ether; allyl ethers such as allyl-3-chloro-2-oxypropyl ether and allyl glycidyl ether; acrylic acid, maleic acid, itaconic acid, acrylic 2-hydroxyethyl acid, methyl methacrylate, monomethyl maleate, diethyl maleate, maleic anhydride and other unsaturated carboxylic acids, their esters or acid anhydrides; acrylonitrile, methacrylonitrile and other unsaturated nitriles; Acrylamide, N- methylol acrylamide, acrylamido-2-methylpropanesulfonic acid, (meth) acrylamides such as acrylamide propyl trimethyl ammonium chloride; allyl amine benzoates, allylamine and its derivatives such as diallyl dimethyl ammonium chloride; and the like.
- the monomer exemplified above is only a part of the monomer (comonomer) copolymerizable with vinyl chloride.
- the comonomer “polyvinyl chloride” edited by Kinki Chemical Association Vinyl Division
- the various monomers exemplified in Nikkan Kogyo Shimbun (1988), pages 75-104 may be used. One or more of these monomers can be used.
- vinyl chloride resin that can constitute the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) include ethylene-vinyl acetate copolymer, ethylene-methyl methacrylate copolymer Also included are resins obtained by graft polymerization of (1) vinyl chloride or (2) vinyl chloride and the above-mentioned comonomer to a resin such as a polymer, ethylene-ethyl acrylate copolymer, or chlorinated polyethylene.
- (meth) acryl means acryl and / or methacryl.
- the vinyl chloride resin can be produced by any conventionally known production method such as suspension polymerization method, emulsion polymerization method, solution polymerization method or bulk polymerization method.
- the vinyl chloride resin particles (a) function as a matrix resin.
- the vinyl chloride resin fine particles (c) and the vinyl chloride resin fine particles (d) function as a dusting agent (powder fluidity improver) described later.
- the vinyl chloride resin particles (a) are preferably produced by a suspension polymerization method.
- the vinyl chloride resin fine particles (c) and the vinyl chloride resin fine particles (d) are preferably produced by an emulsion polymerization method.
- the average degree of polymerization of the vinyl chloride resin constituting the vinyl chloride resin particles (a) is 1200 or more and 5000 or less, preferably 1200 or more and 4500 or less, more preferably 1500 or more and 4500 or less, and further preferably 1500. It is 4000 or more, particularly preferably 1500 or more and 3000 or less, and most preferably 1500 or more and 2500 or less.
- the real-stitch skin chloride is obtained by powder molding a powder-formable vinyl chloride resin composition for real-stitch skin. Good heat aging resistance can be imparted to the vinyl resin molded article.
- the “average polymerization degree” is measured in accordance with JIS K6720-2.
- the average particle diameter of the vinyl chloride resin particles (a) is preferably 50 ⁇ m or more and 500 ⁇ m or less, more preferably 50 ⁇ m or more and 250 ⁇ m or less, and further preferably 100 ⁇ m or more and 200 ⁇ m or less.
- the average particle diameter of the vinyl chloride resin particles (a) is within the above range, the powder flowability of the real stitch skin powder is improved and the powder molding for the real stitch skin is performed.
- the “average particle diameter” refers to a volume average particle diameter measured by a laser diffraction method in accordance with JIS Z 8825.
- the vinyl chloride resin fine particles (c) having an average polymerization degree of 1000 or more and 5000 or less function as a dusting agent that improves the powder flowability of the powder moldable vinyl chloride resin composition for real stitch skins.
- the vinyl chloride resin fine particles (c) are usually composed of a vinyl chloride resin having a polymerization degree of 1000 or more.
- the preferable average particle diameter of the vinyl chloride resin fine particles (c) is 0.1 ⁇ m or more and 10 ⁇ m or less. It is because the powder fluidity
- a preferred average degree of polymerization of the vinyl chloride resin constituting the vinyl chloride resin fine particles (c) is 1200 or more and 5000 or less, a more preferred average degree of polymerization is more than 1500 and 5000 or less, and a more preferred average degree of polymerization is more than 1500 and 3000.
- the average polymerization degree is more than 2000 and 3000 or less, and the most preferable average polymerization degree is more than 2000 and 2500 or less.
- the content of the vinyl chloride resin fine particles (c) is such that the vinyl chloride resin particles (a) and the vinyl chloride resin fine particles (c ) With respect to the total (100% by mass), preferably 5% to 35% by mass, more preferably 5% to 30% by mass, and still more preferably 5% to 25% by mass. It is as follows. When the content of the vinyl chloride resin fine particles (c) is in the above range, the powder flowability of the powder moldable vinyl chloride resin composition for real stitch skin can be improved.
- the content of the vinyl chloride resin particles (a) is such that the vinyl chloride resin particles (a) and the vinyl chloride resin fine particles are used when the vinyl chloride resin fine particles (d) having an average degree of polymerization below 1000 are not used.
- it is 65 to 95 mass% with respect to the sum (100 mass%) with (c), More preferably, it is 70 to 95 mass%, More preferably, it is 75 to 95 mass%. It is below mass%.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention preferably further contains vinyl chloride resin fine particles (d) having an average degree of polymerization of less than 1000.
- the vinyl chloride resin fine particles (d) having an average degree of polymerization of less than 1000 function as a dusting agent for improving the powder flowability of the powder moldable vinyl chloride resin composition for real stitch skin, and the vinyl chloride resin particles Distinguishable from (a) and the vinyl chloride resin fine particles (c).
- the vinyl chloride resin fine particles (d) are usually composed of a vinyl chloride resin having a degree of polymerization of less than 1000.
- the preferable average particle diameter of the vinyl chloride resin fine particles (d) is 0.1 ⁇ m or more and 10 ⁇ m or less.
- the preferred average polymerization degree of the vinyl chloride resin constituting the vinyl chloride resin fine particles (d) is 300 or more and less than 1000, the more preferred average degree of polymerization is 500 or more and 950 or less, and the more preferred average degree of polymerization is 600 or more and 900. It is as follows. When the average degree of polymerization of the vinyl chloride resin constituting the vinyl chloride resin fine particles (d) is in the above range, the powder flowability of the powder moldable vinyl chloride resin composition for real stitch skin can be increased, and the composition It is possible to improve the meltability at the time of molding the product.
- the content of the vinyl chloride resin fine particles (d) is the above-mentioned vinyl chloride resin particles (a) and the above Preferably they are 2 mass% or more and 15 mass% or less with respect to the sum total (100 mass%) of vinyl chloride resin microparticles
- the powder flowability of the powder moldable vinyl chloride resin composition for real stitch skin can be improved, and the molding of the vinyl chloride resin composition can be improved.
- the meltability during processing can be improved.
- low-temperature flexibility, heat aging resistance (tensile property after heating) and real stitching properties (sewing) of a vinyl chloride resin molded product obtained by powder molding a powder-formable vinyl chloride resin composition for real stitch skin It is also possible to improve the balance of the ability to prevent cracks from being generated in the modified part.
- the content of the vinyl chloride resin fine particles (c) is the same as that of the vinyl chloride resin particles (a).
- the total amount (100% by mass) of the vinyl chloride resin fine particles (c) and the vinyl chloride resin fine particles (d) is preferably 3% by mass to 20% by mass, and more preferably 5% by mass. It is 18 mass% or less, More preferably, it is 5 mass% or more and 17 mass% or less.
- the meltability during processing can be improved.
- low-temperature flexibility, heat aging resistance (tensile property after heating) and real stitching properties (sewing) of a vinyl chloride resin molded product obtained by powder molding a powder-formable vinyl chloride resin composition for real stitch skin It is also possible to improve the balance of the ability to prevent cracks from being generated in the modified part.
- the content of the vinyl chloride resin particles (a) is the same as that of the vinyl chloride resin particles (a). , Preferably 65% by mass or more and 95% by mass or less, more preferably 70% by mass with respect to the total (100% by mass) of the vinyl chloride resin fine particles (c) and the vinyl chloride resin fine particles (d). It is 92 mass% or less, More preferably, it is 72 mass% or more and 91 mass% or less.
- the content of the vinyl chloride resin particles (a) is in the above range, the powder flowability of the powder moldable vinyl chloride resin composition for real stitch skin can be improved.
- trimellitic acid ester plasticizer (b) contained in the powder moldable vinyl chloride resin composition for real stitch skin is preferably an ester compound of trimellitic acid and a monohydric alcohol.
- monohydric alcohol examples include, but are not limited to, 1-hexanol, 1-heptanol, 1-octanol, 2-ethylhexanol, 1-nonanol, 1-decanol, 1-undecanol, 1-dodecanol, etc. Is mentioned.
- the triesterized material which esterified substantially all the carboxy groups of trimellitic acid with the monohydric alcohol mentioned above is preferable.
- the alcohol residue part in the triesterized product may be derived from the same alcohol or may be derived from different alcohols.
- the trimellitic acid ester plasticizer (b) may be composed of a single compound or a mixture of different compounds.
- trimellitic acid ester plasticizer (b) are trimellitic acid tri-n-hexyl, trimellitic acid tri-n-heptyl, trimellitic acid tri-n-octyl, trimellitic acid tri- (2 -Ethylhexyl), trimellitic acid tri-n-nonyl, trimellitic acid tri-n-decyl, trimellitic acid triisodecyl, trimellitic acid tri-n-undecyl, trimellitic acid tri-n-dodecyl, trimellitic acid tri- n-alkyl esters (esters having two or more types of alkyl groups having different carbon numbers [wherein the number of carbon atoms is 6 to 12]), trimellitic acid trialkyl esters (alkyl groups having different numbers of carbons Ester having 2 or more carbon atoms in the molecule), trimellitic acid tri-n-alkyl ester (Alkyl group having a carbon number of different [However, the number
- trimellitic acid ester plasticizers (b) include trimellitic acid tri-n-octyl, trimellitic acid tri- (2-ethylhexyl), trimellitic acid tri-n-nonyl, trimellitic acid tri- n-decyl, trimellitic acid tri-n-alkyl ester (an ester having two or more kinds of alkyl groups having different carbon numbers (wherein the number of carbon atoms is 8 to 10)), and a mixture thereof is there.
- the trimellitic acid ester plasticizer (b) is added in the amounts of the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added as necessary.
- the amount is particularly preferably 80 parts by mass or more and 140 parts by mass or less.
- trimellitic acid ester plasticizer (b) When the added amount of the trimellitic acid ester plasticizer (b) is in the above range, a real-stitched skin vinyl chloride resin molded product obtained by powder slush molding of a powder-formable vinyl chloride resin composition for real-stitch skin Heat aging resistance and real stitching properties (performance in which cracks are not easily generated in a site modified by sewing) are improved. Further, the trimellitic acid ester plasticizer (b) is well absorbed by the vinyl chloride resin particles (a), and the powder moldability of the powder moldable vinyl chloride resin composition for real stitch skin is improved.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention may contain a polar group-modified silicone oil (e).
- the polar group-modified silicone oil (e) is a silicone oil in which polar groups such as a carboxyl group, a hydroxyl group, a mercapto group, an amino group, an epoxy group, and a (meth) acryloyloxy group are introduced into a polymer having a polysiloxane structure.
- the “silicone oil” (polar group-unmodified silicone oil) in the polar group-modified silicone oil (e) is not particularly limited, and refers to a polymer having a polysiloxane structure.
- polystyrene resin examples include polydimethylsiloxane, polydiethylsiloxane, poly (methylethyl) siloxane, and mixtures thereof.
- transduced is the terminal and / or side chain of the polymer which has a polysiloxane structure.
- (meth) acryloyloxy means acryloyloxy and / or methacryloyloxy.
- the weight average molecular weight of the polar group-modified silicone oil (e) is not particularly limited, but is preferably 1,000 or more and 100,000 or less, and more preferably 1,000 or more and 30,000 or less.
- the “weight average molecular weight of the polar group-modified silicone oil (e)” can be determined by the following method. First, the kinematic viscosity ⁇ CS / 25 (unit: mm 2 / s) at 25 ° C. of the polar group-modified silicone oil (e) is measured, and the weight average molecular weight M is determined using the following formula (I).
- the polar group-modified silicone oil (e) is added in an amount of the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added as necessary.
- it is 0.05 mass part or more and 5 mass parts or less with respect to a total of 100 mass parts, More preferably, it is 0.1 mass part or more and 3 mass parts or less, More preferably, it is 0.15 mass part or more and 1 mass part Part or less, particularly preferably 0.17 parts by mass or more and 0.6 parts by mass or less.
- the addition amount of the polar group-modified silicone oil (e) is within the above range, the release of the powder-formable vinyl chloride resin composition for real-stitch skin, which is obtained by powder slush molding of the powder-formable vinyl chloride resin composition for real-stitch skin Improves.
- the real stitching property performance in which cracks are not easily generated in a site modified by sewing is improved.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention comprises the vinyl chloride resin particles (a), the trimellitic acid ester plasticizer (b), the vinyl chloride resin fine particles (c), and the vinyl chloride.
- various additives may be contained.
- the additive is not particularly limited, and is a plasticizer other than the trimellitic acid ester plasticizer (b) (hereinafter sometimes referred to as “other plasticizer”), perchloric acid-treated hydrotalcite, A dusting agent other than zeolite, fatty acid metal salt, the above-mentioned vinyl chloride resin fine particles (c) and vinyl chloride resin fine particles (d) (powder flowability improver. Hereinafter, it may be referred to as “other dusting agents”). , As well as other additives.
- plasticizers other than the trimellitic acid ester plasticizer (b) that can be contained in the powder moldable vinyl chloride resin composition for real stitch skin of the present invention include the following primary plasticizer and secondary plasticizer: Agents and the like.
- primary plasticizers Pyromellitic acid tetra-n-hexyl, pyromellitic acid tetra-n-heptyl, pyromellitic acid tetra-n-octyl, pyromellitic acid tetra- (2-ethylhexyl), pyromellitic acid tetra-n-nonyl, pyromellitic acid Tetra-n-decyl, pyromellitic acid tetraisodecyl, pyromellitic acid tetra-n-undecyl, pyromellitic acid tetra-n-dodecyl, pyromellitic acid tetra-n-alkyl ester (an alkyl group having a different carbon number [however, Pyromellitic acid ester plasticizer, such as ester having 2 or more carbon atoms in the molecule].
- Epoxidized vegetable oils such as epoxidized soybean oil and epoxidized linseed oil; Dimethyl phthalate, diethyl phthalate, dibutyl phthalate, di- (2-ethylhexyl) phthalate, di-n-octyl phthalate, diisobutyl phthalate, diheptyl phthalate, diphenyl phthalate, diisodecyl phthalate, ditridecyl phthalate, diundecyl phthalate, dibenzyl phthalate, Phthalic acid derivatives such as butylbenzyl phthalate, dinonyl phthalate, dicyclohexyl phthalate; Isophthalic acid derivatives such as dimethyl isophthalate, di- (2-ethylhexyl) isophthalate, diisooctyl isophthalate; Tetrahydrophthalic acid derivatives such as di- (2-ethylhexyl)
- Glycerol derivatives such as glycerol monoacetate, glycerol triacetate, glycerol tributyrate; Epoxy derivatives such as epoxy hexahydrophthalate diisodecyl, epoxy triglyceride, epoxidized octyl oleate, epoxidized decyl oleate; Polyester plasticizers such as adipic acid polyester, sebacic acid polyester, phthalic acid polyester; Etc.
- examples of so-called secondary plasticizers include glycated fatty acid esters such as chlorinated paraffin and triethylene glycol dicaprylate, butyl epoxy stearate, phenyl oleate, and methyl dihydroabietic acid.
- one or more other plasticizers can be used.
- a secondary plasticizer it is preferable to use together a primary plasticizer with an equal mass or more.
- preferred plasticizers are pyromellitic ester plasticizers and epoxidized vegetable oils, and more preferred plasticizers are pyromellitic acid tetra- (2-ethylhexyl) and epoxidized vegetable oils.
- a more preferred plasticizer is epoxidized soybean oil.
- the total content of the other plasticizers is the total of the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added as necessary.
- the amount is preferably 100 parts by mass or less, more preferably 1 part by mass or more and 100 parts by mass or less, still more preferably 2 parts by mass or more and 80 parts by mass or less, and particularly preferably 3 parts by mass with respect to 100 parts by mass.
- the amount is 10 parts by mass or less.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention may contain perchloric acid-treated hydrotalcite.
- Perchloric acid-treated hydrotalcite for example, by adding hydrotalcite to a dilute aqueous solution of perchloric acid, stirring, and then filtering, dehydrating or drying as necessary, thereby allowing carbonate anions in hydrotalcite It can be easily produced by substituting at least a part of (CO 3 2 ⁇ ) with a perchlorate anion (ClO 4 ⁇ ) (2 mol of perchlorate anion is substituted for 1 mol of carbonate anion).
- the molar ratio of the hydrotalcite to the perchloric acid can be arbitrarily set, but is generally 0.1 to 2 moles of perchloric acid per mole of hydrotalcite.
- the substitution rate of the carbonate anion to the perchlorate anion in the untreated (unsubstituted) hydrotalcite is preferably 50 mol% or more, more preferably 70 mol% or more, and still more preferably 85 mol% or more. Further, the substitution rate of the carbonate anion to the perchlorate anion in the untreated (unsubstituted) hydrotalcite is preferably 95 mol% or less. Powder molding of powder-formable vinyl chloride resin composition for real stitch skin by replacing carbonic acid anion with perchlorate anion in untreated (unsubstituted) hydrotalcite within the above range Good flexibility at low temperatures can be imparted to the vinyl chloride resin molded article for real stitch skins.
- Hydrotalcite is a non - stoichiometric compound represented by the general formula: [Mg 1-x Al x (OH) 2 ] x + [(CO 3 ) x / 2 ⁇ mH 2 O] x- It is an inorganic substance having a layered crystal structure consisting of a layer [Mg 1-x Al x (OH) 2 ] x + and a negatively charged intermediate layer [(CO 3 ) x / 2 ⁇ mH 2 O] x- .
- x is a number in the range of greater than 0 and less than or equal to 0.33.
- Natural hydrotalcite is Mg 6 Al 2 (OH) 16 CO 3 .4H 2 O.
- Mg 4.5 Al 2 (OH) 13 CO 3 .3.5H 2 O is commercially available as the synthesized hydrotalcite.
- a method for synthesizing synthetic hydrotalcite is described in, for example, Japanese Patent Publication No. 61-174270.
- the preferred content is from 0.5 parts by weight to 7 parts by weight, the more preferred content is from 1 part by weight to 6 parts by weight, and the more preferred content is from 1.5 parts by weight to 5.5 parts by weight. It is as follows. When the content of the perchloric acid-treated hydrotalcite is within the above range, a real-stitched skin vinyl chloride resin composition formed by powder molding a real-stitched skin-formable powder-formable vinyl chloride resin composition is good. Flexibility at low temperatures can be imparted.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention may contain zeolite as a stabilizer.
- Zeolite has the general formula: M x / n ⁇ [(AlO 2 ) x ⁇ (SiO 2 ) y ] ⁇ zH 2 O (wherein M is a metal ion of valence n and x + y is a tetrahedron per unit cell) Number, z is the number of moles of water).
- M in the general formula include monovalent or divalent metals such as Na, Li, Ca, Mg, Zn, and mixed types thereof.
- the preferable content of the zeolite with respect to a total of 100 parts by mass of the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added as necessary is as follows: It is 0.1 mass part or more and 5 mass parts or less.
- the powder formable vinyl chloride resin composition for real stitch skin of the present invention may contain a fatty acid metal salt.
- a preferred fatty acid metal salt is a monovalent fatty acid metal salt
- a more preferred fatty acid metal salt is a monovalent fatty acid metal salt having 12 to 24 carbon atoms
- a more preferred fatty acid metal salt is a monovalent fatty acid metal salt having 15 to 21 carbon atoms. It is a fatty acid metal salt.
- the fatty acid metal salt include lithium stearate, magnesium stearate, aluminum stearate, calcium stearate, strontium stearate, barium stearate, zinc stearate, calcium laurate, barium laurate, zinc laurate, 2-ethylhexane. Barium acid, zinc 2-ethylhexanoate, barium ricinoleate, zinc ricinoleate and the like.
- the metal constituting the fatty acid metal salt is preferably a metal capable of generating a polyvalent cation, more preferably a metal capable of generating a divalent cation, and a divalent cation of the third to sixth periods of the periodic table. Is more preferable, and a metal capable of generating a divalent cation in the fourth period of the periodic table is particularly preferable.
- the most preferred fatty acid metal salt is zinc stearate.
- the preferred content of the fatty acid metal salt with respect to 100 parts by mass in total of the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added as necessary. Is 0.05 parts by mass or more and 5 parts by mass or less, more preferably 0.1 parts by mass or more and 1 parts by mass or less, and still more preferably 0.1 parts by mass or more and 0.5 parts by mass or less. is there.
- the content of the fatty acid metal salt is within the above range, the powder-formable vinyl chloride resin composition for real stitch skin is formed into a vinyl chloride resin molded article for real-stitch skin by softening at good low temperature. The color difference value can be further reduced.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention is a dusting agent other than the vinyl chloride resin fine particles (c) and the vinyl chloride resin fine particles (d) (hereinafter referred to as “other dusting agents”). May be included).
- Other dusting agents include inorganic fine particles such as calcium carbonate, talc, and aluminum oxide; polyacrylonitrile resin fine particles, poly (meth) acrylate resin fine particles, polystyrene resin fine particles, polyethylene resin fine particles, polypropylene resin fine particles, polyester resin fine particles, polyamide Organic fine particles such as resin fine particles.
- inorganic fine particles having an average particle size of 10 nm to 100 nm are preferable.
- the content of other dusting agents is not limited to a specific range.
- the content is preferably based on 100 parts by mass in total of the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added as necessary. Is 20 parts by mass or less, more preferably 10 parts by mass or less.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention comprises a perchloric acid compound (sodium perchlorate, potassium perchlorate) other than a colorant, an impact modifier, and a perchloric acid-treated hydrotalcite.
- a perchloric acid compound sodium perchlorate, potassium perchlorate
- other additives such as antioxidants, antifungal agents, flame retardants, antistatic agents, fillers, light stabilizers, foaming agents, ⁇ -diketones, and the like.
- the colorant are quinacridone pigments, perylene pigments, polyazo condensation pigments, isoindolinone pigments, copper phthalocyanine pigments, titanium white, and carbon black.
- the quinacridone pigment is obtained by treating p-phenylene dianthranilic acid with concentrated sulfuric acid and exhibits a yellowish red to reddish purple hue.
- Specific examples of the quinacridone pigment are quinacridone red, quinacridone magenta, and quinacridone violet.
- the perylene pigment is obtained by a condensation reaction of perylene-3,4,9,10-tetracarboxylic anhydride and an aromatic primary amine, and exhibits a hue from red to magenta and brown.
- the perylene pigment are perylene red, perylene orange, perylene maroon, perylene vermilion, and perylene bordeaux.
- the polyazo condensation pigment is obtained by condensing an azo dye in a solvent to obtain a high molecular weight, and exhibits a hue of a yellow or red pigment.
- Specific examples of the polyazo condensation pigment are polyazo red, polyazo yellow, chromophthal orange, chromophthal red, and chromophthal scarlet.
- the isoindolinone pigment is obtained by a condensation reaction of 4,5,6,7-tetrachloroisoindolinone and an aromatic primary diamine, and exhibits a hue of greenish yellow to red and brown.
- the isoindolinone pigment is isoindolinone yellow.
- the copper phthalocyanine pigment is a pigment in which copper is coordinated to phthalocyanines, and exhibits a hue of yellowish green to vivid blue.
- Specific examples of the copper phthalocyanine pigment are phthalocyanine green and phthalocyanine blue.
- Titanium white is a white pigment made of titanium dioxide and has a large hiding power, and there are anatase type and rutile type.
- Carbon black is a black pigment containing carbon as a main component and containing oxygen, hydrogen, and nitrogen. Specific examples of carbon black are thermal black, acetylene black, channel black, furnace black, lamp black, and bone black.
- the impact resistance improver include acrylonitrile-butadiene-styrene copolymer, methyl methacrylate-butadiene-styrene copolymer, chlorinated polyethylene, ethylene-vinyl acetate copolymer, chlorosulfonated polyethylene and the like.
- the powder formable vinyl chloride resin composition for the real stitch skin of the present invention one or more impact resistance improvers can be used.
- the impact resistance improver is dispersed as a non-uniform phase of fine elastic particles in the powder moldable vinyl chloride resin composition for real stitch skin.
- the chain and polar group graft polymerized to the elastic particles are compatible with the vinyl chloride resin particles (a), and the powder moldable vinyl chloride resin for real stitch skin
- the impact resistance of the composition is improved.
- antioxidants include phenolic antioxidants, sulfur antioxidants, and phosphorus antioxidants.
- antifungal agent examples include aliphatic ester antifungal agents, hydrocarbon antifungal agents, organic nitrogen antifungal agents, and organic nitrogen sulfur antifungal agents.
- flame retardants are halogen flame retardants such as chlorinated paraffin; phosphorus flame retardants such as phosphate esters; inorganic hydroxides such as magnesium hydroxide and aluminum hydroxide;
- antistatic agent examples include anionic antistatic agents such as fatty acid salts, higher alcohol sulfates and sulfonates; cationic antistatic agents such as aliphatic amine salts and quaternary ammonium salts; polyoxyethylene alkyl Nonionic antistatic agents such as ethers and polyoxyethylene alkylphenol ethers;
- filler examples include silica, talc, mica, calcium carbonate, clay and the like.
- light stabilizers include benzotriazole-based, benzophenone-based, nickel chelate-based ultraviolet absorbers, hindered amine-based light stabilizers, and the like.
- blowing agent examples include azo compounds such as azodicarbonamide and azobisisobutyronitrile, nitroso compounds such as N, N′-dinitrosopentamethylenetetramine, p-toluenesulfonyl hydrazide, p, p-oxybis (benzene)
- Organic foaming agents such as sulfonyl hydrazide compounds such as sulfonyl hydrazide; volatile hydrocarbon compounds such as chlorofluorocarbon gas, carbon dioxide gas, water, pentane, and gas-based foaming agents such as microcapsules encapsulating these.
- ⁇ -diketones more effectively suppress fluctuations in the initial color tone of the real-stitch skin vinyl chloride resin molding obtained by powder molding the powder-formable vinyl chloride resin composition for real-stitch skin of the present invention.
- ⁇ -diketones are dibenzoylmethane, stearoylbenzoylmethane, palmitoylbenzoylmethane, and the like.
- One of these ⁇ -diketones may be used alone, or two or more thereof may be used in combination.
- the content of ⁇ -diketones is not limited to a specific range.
- the preferred content of ⁇ -diketone is 100 parts by mass in total of the vinyl chloride resin particles (a), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added as necessary. On the other hand, it is 0.1 to 5 parts by mass.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention can be produced by mixing the above-described components. That is, the method for producing a powder moldable vinyl chloride resin composition for real stitch skins includes at least the vinyl chloride resin particles (a), the trimellitic acid ester plasticizer (b), and the vinyl chloride resin fine particles ( and c). In addition, the method for producing a powder moldable vinyl chloride resin composition for a real stitch skin is such that the vinyl chloride resin fine particles (d) and / or the polar group-modified silicone oil (e) are blended.
- Resin particles (a), trimellitic acid ester plasticizer (b), vinyl chloride resin fine particles (c), vinyl chloride resin fine particles (d) and / or polar group-modified silicone oil (e) The process of mixing.
- the vinyl chloride resin particles (a), the trimellitic acid ester plasticizer (b), the vinyl chloride resin fine particles (c), and the vinyl chloride resin fine particles (d) added if necessary,
- the method for mixing the polar group-modified silicone oil (e) and the additive is not limited.
- a preferred mixing method is to dry dry blend the components except for the plasticizer and the dusting agent (including the vinyl chloride resin fine particles (c) and the vinyl chloride resin fine particles (d) added as necessary) Thereafter, a plasticizer and a dusting agent are sequentially mixed.
- the Henschel mixer is preferably used for dry blending.
- the temperature during dry blending is preferably 50 ° C. or higher and 100 ° C. or lower, more preferably 70 ° C. or higher and 80 ° C. or lower.
- the vinyl chloride resin molded article for real stitch skin of the present invention is obtained by powder molding, preferably powder slush molding, of the above-described powder moldable vinyl chloride resin composition for real stitch skin of the present invention.
- the mold temperature at the time of powder slush molding is preferably 200 ° C. or higher and 300 ° C. or lower, more preferably 220 ° C. or higher and 280 ° C. or lower.
- the moldable powdered vinyl chloride resin composition for real stitch skin of the present invention is sprinkled on a mold in the above temperature range for 5 seconds or more. After standing for 30 seconds or less, the excess vinyl chloride resin composition is shaken off, and further left for 30 seconds or more and 3 minutes or less. Thereafter, the mold is cooled to 10 ° C. or more and 60 ° C. or less, and the obtained vinyl chloride resin molded article for real stitch skin of the present invention is removed from the mold.
- the vinyl chloride resin molded body for a real stitch skin of the present invention is suitably used as a skin for automobile interior materials such as instrument panels and door trims.
- yarn is sewn on the vinyl chloride resin molded object for real stitch skins of this invention.
- the real-stitched vinyl chloride resin molded body for which the thread is sewn is excellent in design and is hailed as a luxury product.
- the color of the yarn is preferably different from the color of the vinyl chloride resin molded article for the real stitch skin from the viewpoint of improving the design.
- the material of the yarn is not particularly limited, but is preferably polyester.
- a needle when sewing the above thread on a vinyl chloride resin molded body for a real stitch skin.
- hook when using a needle
- a needle having a substantially circular cross section called a round needle
- a needle having a substantially elliptical cross section called a female needle
- the use of a female needle causes the vinyl chloride resin molding for real stitch skin to The stitches are easily damaged (easy to tear).
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention even if the thread is sewn using a knife needle, the real stitch portion is hardly damaged (hard to tear). A resin molded body can be obtained.
- the laminate of the present invention can be obtained by laminating the vinyl chloride resin molded article for real stitch skin and the foamed polyurethane molded article of the present invention.
- the lamination method is a method of separately producing a vinyl chloride resin molded body for real stitch skin and a polyurethane foam molded body, and then bonding them together by using heat fusion, thermal bonding or a known adhesive; for real stitch skin Polymerization is carried out by reacting isocyanates, which are raw materials for foamed polyurethane moldings, and polyols on the vinyl chloride resin molding, and polyurethane is foamed by a known method to produce a vinyl chloride resin molding for real stitch skins.
- the laminate of the present invention is suitably used as an automobile interior material, such as an instrument panel or a door trim.
- the average degree of polymerization of the vinyl chloride resin particles and the vinyl chloride resin fine particles is based on JIS K6720-2, and each of the vinyl chloride resin particles and the vinyl chloride resin fine particles is dissolved in cyclohexanone. And calculating the viscosity.
- the average particle diameter (volume average particle diameter) of the vinyl chloride resin particles and the vinyl chloride resin fine particles is obtained by dispersing the vinyl chloride resin particles and the vinyl chloride resin fine particles in a water tank, respectively, and using an apparatus shown below. The diffraction / scattering intensity distribution was measured and analyzed, and the particle diameter and volume-based particle diameter distribution were measured to calculate.
- ⁇ Apparatus Laser diffraction particle size distribution analyzer (manufactured by Shimadzu Corporation, SALD-2300) ⁇ Measuring method: Laser diffraction and scattering ⁇ Measuring range: 0.017 ⁇ m to 2500 ⁇ m
- Light source Semiconductor laser (wavelength 680 nm, output 3 mW)
- Examples 1 to 3 and Comparative Example 1 Among the blending components shown in Table 1, components other than plasticizers (trimellitic acid ester plasticizer and epoxidized soybean oil) and vinyl chloride resin fine particles as a dusting agent were placed in a Henschel mixer and mixed. Then, when the temperature of the mixture rose to 80 ° C., a plasticizer was added and dried up (referred to as a state in which the plasticizer was absorbed into the vinyl chloride resin particles and the mixture was further improved). Thereafter, when the dried-up mixture was cooled to 70 ° C. or lower, fine particles of vinyl chloride resin as a dusting agent were added to prepare a powder moldable vinyl chloride resin composition for real stitch skin.
- plasticizers trimellitic acid ester plasticizer and epoxidized soybean oil
- vinyl chloride resin fine particles as a dusting agent were added to prepare a powder moldable vinyl chloride resin composition for real stitch skin.
- the powder-formable vinyl chloride resin composition for real stitch skin obtained was sprinkled on a metal mold with a texture heated to 250 ° C., and the time adjusted so that the thickness of the vinyl chloride resin molded sheet was 1 mm (specifically Was allowed to melt for 14 to 17 seconds), and then the excess vinyl chloride resin composition was shaken off. Then, it is left in an oven set at 200 ° C., and when 60 seconds have passed, the mold is cooled with cooling water, and when the mold temperature is cooled to 40 ° C., for a real stitch skin of 150 mm ⁇ 200 mm ⁇ 1 mm
- the vinyl chloride resin molded sheet (S1) black was removed from the mold. And various physical properties were measured with the following method about the obtained vinyl chloride resin molding sheet (S1) for real stitch skins. The results are shown in Table 1.
- the measuring method of various physical properties is as follows.
- (1) Initial tensile test The vinyl chloride resin molded sheet (S1) for the real stitch skin is punched with No. 1 dumbbell described in JIS K6251, and is pulled at -35 ° C at a pulling speed of 200 mm / min in accordance with JIS K7113. Stress (tensile strength) and tensile elongation were measured. The higher the tensile elongation at ⁇ 35 ° C., the better the flexibility of the vinyl chloride resin molded sheet at low temperatures.
- the polyol mixture consisting of parts and polymethylene polyphenylene polyisocyanate (polymeric MDI) are mixed in a ratio such that the index is 98.
- the mixture was prepared. Next, the obtained mixed solution is poured onto each of the two vinyl chloride resin molded sheets (S1) for the real stitch skin, and the mold is covered with an aluminum plate of 305 mm ⁇ 395 mm ⁇ 2 mm, and the mold is fixed. Sealed. After 5 minutes, a sample (laminated body) in which a 9 mm thick, 0.18 g / cm 3 foamed polyurethane molded product was lined with a 1 mm thick vinyl chloride resin molded sheet (S1) for real-stitched skin was molded. Formed within. Then, the obtained sample was taken out from the mold. Next, after putting the obtained sample in an oven and heating at 130 ° C.
- the polyurethane foam layer was peeled off from the sample, and after heating, a vinyl chloride resin molded sheet (S2) for real stitch skin was obtained.
- tensile stress tensile strength
- tensile elongation at ⁇ 35 ° C. were measured in the same manner as in the above (1) initial tensile test. The higher the tensile elongation at ⁇ 35 ° C., the better the flexibility at a low temperature of the vinyl chloride resin molded sheet.
- the obtained mixed solution was poured into a mold, and the mold was sealed with a lid of the mold. After 5 minutes, a foamed polyurethane molded product having a thickness of 9 mm and a density of 0.18 g / cm 3 and the above aluminum plate are placed on the skin made of a 1 mm thick real stitch processed vinyl chloride resin molded sheet (S3). A sample (laminate) lined in order was formed. Then, the obtained sample was taken out from the mold. Next, the obtained sample is put into an oven set at 130 ° C., taken out of the oven every 24 hours (up to 504 hours), and a real stitch processed vinyl chloride resin molded sheet (S3) for real stitching is obtained. The presence or absence of damage to the real stitch part was confirmed.
- ZEST 1700Z (vinyl chloride resin particles (vinyl chloride resin particles (a)), average degree of polymerization 1700, average particle diameter 130 ⁇ m), manufactured by Shin-Daiichi PVC Co., Ltd. 2)
- ZEST 1000Z (vinyl chloride resin particles, average polymerization degree 1000, average particle diameter 130 ⁇ m), manufactured by Shin Daiichi Vinyl Co., Ltd. 3) Made by Kao Corporation, Trimex N-08 4)
- Leuron paste 761 (vinyl chloride resin fine particles (vinyl chloride resin fine particles (c)), average polymerization degree 2100, average particle diameter 2 ⁇ m) manufactured by Tosoh Corporation 15) DAPX-1720 Black (A), manufactured by Dainichi Seika Kogyo Co., Ltd.
- Molded articles obtained by powder slush molding of the powder moldability vinyl chloride resin compositions for real stitch skins of Examples 1 to 3 have initial properties at low temperature and post-heating tensile properties and real Excellent stitching.
- the physical property of the molded object obtained by carrying out the powder slush molding of the powder moldability vinyl chloride resin composition for the real stitch skin of Example 2 and Example 3 is respectively equivalent.
- the powder-formable vinyl chloride resin composition for real stitch skin of Example 2 in terms of the meltability of the powder-formable vinyl chloride resin composition for real stitch skin itself. However, it was easier to dissolve than the powder formable vinyl chloride resin composition for real stitch skin of Example 3 and was more excellent.
- the powder formable vinyl chloride resin for the real stitch skin of Comparative Example 1 in which the average polymerization degree of the vinyl chloride resin particles is too small and does not contain the vinyl chloride resin fine particles (c) having an average polymerization degree of 1000 or more and 5000 or less.
- the molded product obtained by powder slush molding of the composition had low initial tensile elongation at low temperatures and low tensile elongation after heating, and was inferior in flexibility at low temperatures after initial and heating. Furthermore, the real stitch property of the molded product was low.
- the powder moldable vinyl chloride resin composition for real stitch skin of the present invention is suitably used as a molding material for skins of automobile interior materials such as instrument panels and door trims.
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Abstract
Description
一方、芯材と表皮を接合する合成樹脂製発泡体層が設けられ、発泡体層で発生するガスを排出するガス抜き孔が前記芯材に設けられている積層体が検討された(例えば、特許文献2参照)。しかし、この積層体においても、上記表皮と上記合成樹脂製発泡体層とが接触しており、上記化学反応による表皮の変色を長期間防止できず、また、表皮の耐熱老化性は低下する。
ところで、特定のトリメリテート類可塑剤が配合された粉末成形用塩化ビニル樹脂組成物が自動車内装材の表皮の原料として検討された(例えば、特許文献4参照)。しかし、上記粉末成形用塩化ビニル樹脂組成物の粉末成形により得られる表皮材の耐熱老化性を向上させる場合、上記可塑剤の配合量を増加させなければならず、その結果、表皮材には上記可塑剤に由来するベトツキ感が発生する。更に、平均重合度が1500以上の塩化ビニル系樹脂からなる塩化ビニル系樹脂粒子100質量部と特定のトリメリテート系可塑剤110~150質量部とを含有する粉体成形用塩化ビニル系樹脂組成物が検討された(例えば、特許文献5参照)。
なお、本発明において、「樹脂粒子」とは、粒子径が30μm以上の粒子を指し、「樹脂微粒子」とは、粒子径が30μm未満の粒子を指す。
ここで、本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物において、前記塩化ビニル樹脂微粒子(d)の好ましい平均粒子径は0.1μm以上10μm以下である。
上記リアルステッチ表皮用塩化ビニル樹脂成形体は、好ましくは糸が縫い付けられている。
また、上記リアルステッチ表皮用塩化ビニル樹脂成形体は、好ましくは自動車インスツルメントパネル表皮用である。
また、本発明は、上記リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物、または、上記リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の製造方法に従って製造したリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物をパウダースラッシュ成形することを含む、リアルステッチ表皮用塩化ビニル樹脂成形体の製造方法である。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、平均重合度が1200以上5000以下の塩化ビニル樹脂粒子(a)と、トリメリット酸エステル可塑剤(b)と、平均重合度が1000以上5000以下の塩化ビニル樹脂微粒子(c)とを含み、任意に、平均重合度が1000未満の塩化ビニル樹脂微粒子(d)、極性基変性シリコーンオイル(e)、添加剤を更に含有する。
ここで、平均重合度が1200以上5000以下の塩化ビニル樹脂粒子(a)、平均重合度が1000以上5000以下の塩化ビニル樹脂微粒子(c)、及び平均重合度が1000未満の塩化ビニル樹脂微粒子(d)を構成し得る塩化ビニル樹脂としては、塩化ビニルの単独重合体の他、塩化ビニル単位を好ましくは50質量%以上、より好ましくは70質量%以上含有する共重合体が挙げられる。塩化ビニル共重合体の共単量体の具体例は、エチレン、プロピレンなどのオレフィン類;塩化アリル、塩化ビニリデン、フッ化ビニル、三フッ化塩化エチレンなどのハロゲン化オレフィン類;酢酸ビニル、プロピオン酸ビニルなどのカルボン酸ビニルエステル類;イソブチルビニルエーテル、セチルビニルエーテルなどのビニルエーテル類;アリル-3-クロロ-2-オキシプロピルエーテル、アリルグリシジルエーテルなどのアリルエーテル類;アクリル酸、マレイン酸、イタコン酸、アクリル酸-2-ヒドロキシエチル、メタクリル酸メチル、マレイン酸モノメチル、マレイン酸ジエチル、無水マレイン酸などの不飽和カルボン酸、そのエステルまたはその酸無水物類;アクリロニトリル、メタクリロニトリルなどの不飽和ニトリル類;アクリルアミド、N-メチロールアクリルアミド、アクリルアミド-2-メチルプロパンスルホン酸、(メタ)アクリルアミドプロピルトリメチルアンモニウムクロライドなどのアクリルアミド類;アリルアミン安息香酸塩、ジアリルジメチルアンモニウムクロライドなどのアリルアミンおよびその誘導体類;などである。以上に例示される単量体は、塩化ビニルと共重合可能な単量体(共単量体)の一部に過ぎず、共単量体としては、近畿化学協会ビニル部会編「ポリ塩化ビニル」日刊工業新聞社(1988年)第75~104頁に例示されている各種単量体が使用され得る。これらの単量体の1種又は2種以上が使用され得る。上記塩化ビニル樹脂粒子(a)、塩化ビニル樹脂微粒子(c)、及び塩化ビニル樹脂微粒子(d)を構成し得る塩化ビニル樹脂には、エチレン-酢酸ビニル共重合体、エチレン-メタクリル酸メチル共重合体、エチレン-アクリル酸エチル共重合体、塩素化ポリエチレンなどの樹脂に、(1)塩化ビニルまたは(2)塩化ビニルと前記共単量体とがグラフト重合された樹脂も含まれる。
ここで、本明細書において、「(メタ)アクリル」とは、アクリル及び/又はメタクリルを意味する。
上記塩化ビニル樹脂粒子(a)を構成する塩化ビニル樹脂の平均重合度は、1200以上5000以下であり、好ましくは1200以上4500以下であり、より好ましくは1500以上4500以下であり、更に好ましくは1500以上4000以下であり、特に好ましくは1500以上3000以下であり、最も好ましくは1500以上2500以下である。上記塩化ビニル樹脂粒子(a)を構成する塩化ビニル樹脂の平均重合度が上記範囲であると、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物を粉体成形してなるリアルステッチ表皮用塩化ビニル樹脂成形体に、良好な耐熱老化性を付与できる。なお、「平均重合度」は、JIS K6720-2に準拠して測定される。
上記平均重合度が1000以上5000以下の塩化ビニル樹脂微粒子(c)は、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の粉体流動性を向上させるダスティング剤として機能する。
なお、塩化ビニル樹脂微粒子(c)は、通常、重合度が1000以上の塩化ビニル樹脂で構成されている。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、好ましくは、更に、平均重合度が1000未満の塩化ビニル樹脂微粒子(d)を含有する。上記平均重合度が1000未満の塩化ビニル樹脂微粒子(d)は、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の粉体流動性を向上させるダスティング剤として機能し、上記塩化ビニル樹脂粒子(a)及び上記塩化ビニル樹脂微粒子(c)と区別される。
なお、塩化ビニル樹脂微粒子(d)は、通常、重合度が1000未満の塩化ビニル樹脂で構成されている。
リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物が含有するトリメリット酸エステル可塑剤(b)は、好ましくは、トリメリット酸と一価アルコールとのエステル化合物である。
上記トリメリット酸エステル可塑剤(b)は、単一の化合物からなるものであってもよいし、異なる化合物の混合物であってもよい。
より好ましいトリメリット酸エステル可塑剤(b)の具体例は、トリメリット酸トリ-n-オクチル、トリメリット酸トリ-(2-エチルヘキシル)、トリメリット酸トリ-n-ノニル、トリメリット酸トリ-n-デシル、トリメリット酸トリ-n-アルキルエステル(炭素数が異なるアルキル基〔但し、炭素数は8~10である。〕を分子内に2種以上有するエステル)、及びこれらの混合物等である。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、極性基変性シリコーンオイル(e)を含有し得る。極性基変性シリコーンオイル(e)は、カルボキシル基、水酸基、メルカプト基、アミノ基、エポキシ基、(メタ)アクリロイロキシ基等の極性基がポリシロキサン構造を有する高分子に導入されているシリコーンオイルである。なお、極性基変性シリコーンオイル(e)における「シリコーンオイル」(極性基未変性のシリコーンオイル)とは、特に限定されず、ポリシロキサン構造を有する高分子を指す。当該高分子としては、ポリジメチルシロキサン、ポリジエチルシロキサン、ポリ(メチルエチル)シロキサン、及びこれらの混合物等が挙げられる。なお、上記極性基が導入される部位は、ポリシロキサン構造を有する高分子の末端及び/又は側鎖である。
ここで、本明細書において、「(メタ)アクリロイロキシ」とは、アクリロイロキシ及び/又はメタクリロイロキシを意味する。
なお、「極性基変性シリコーンオイル(e)の重量平均分子量」は、以下の方法により求めることができる。
まず、極性基変性シリコーンオイル(e)の、25℃における動粘度ηCS/25(単位:mm2/s)を測定し、以下の式(I)を用いて重量平均分子量Mを求める。
log(ηCS/25)=1.00+0.0123M0.5 ・・・(I)
なお、動粘度ηCS/25は、ASTM D 445-46Tに従い、ウッベローデ粘度計により測定することができる。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、上記塩化ビニル樹脂粒子(a)、上記トリメリット酸エステル可塑剤(b)、上記塩化ビニル樹脂微粒子(c)、上記塩化ビニル樹脂微粒子(d)、及び上記極性基変性シリコーンオイル(e)以外に、各種添加剤を含有してもよい。添加剤としては、特に限定されることなく、上記トリメリット酸エステル可塑剤(b)以外の可塑剤(以下、「その他の可塑剤」ということがある。)、過塩素酸処理ハイドロタルサイト、ゼオライト、脂肪酸金属塩、上記塩化ビニル樹脂微粒子(c)及び塩化ビニル樹脂微粒子(d)以外のダスティング剤(粉体流動性改良剤。以下、「その他のダスティング剤」ということがある。)、並びにその他の添加剤が挙げられる。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物が含有し得る、上記トリメリット酸エステル可塑剤(b)以外の可塑剤の具体例としては、以下の一次可塑剤及び二次可塑剤などが挙げられる。
ピロメリット酸テトラ-n-ヘキシル、ピロメリット酸テトラ-n-ヘプチル、ピロメリット酸テトラ-n-オクチル、ピロメリット酸テトラ-(2-エチルヘキシル)、ピロメリット酸テトラ-n-ノニル、ピロメリット酸テトラ-n-デシル、ピロメリット酸テトライソデシル、ピロメリット酸テトラ-n-ウンデシル、ピロメリット酸テトラ-n-ドデシル、ピロメリット酸テトラ-n-アルキルエステル(炭素数が異なるアルキル基〔但し、炭素数は6~12である。〕を分子内に2種以上有するエステル)等の、ピロメリット酸エステル可塑剤;
エポキシ化大豆油、エポキシ化亜麻仁油等のエポキシ化植物油;
ジメチルフタレート、ジエチルフタレート、ジブチルフタレート、ジ-(2-エチルヘキシル)フタレート、ジ-n-オクチルフタレート、ジイソブチルフタレート、ジヘプチルフタレート、ジフェニルフタレート、ジイソデシルフタレート、ジトリデシルフタレート、ジウンデシルフタレート、ジベンジルフタレート、ブチルベンジルフタレート、ジノニルフタレート、ジシクロヘキシルフタレートなどのフタル酸誘導体;
ジメチルイソフタレート、ジ-(2-エチルヘキシル)イソフタレート、ジイソオクチルイソフタレートなどのイソフタル酸誘導体;
ジ-(2-エチルヘキシル)テトラヒドロフタレート、ジ-n-オクチルテトラヒドロフタレート、ジイソデシルテトラヒドロフタレートなどのテトラヒドロフタル酸誘導体;
ジ-n-ブチルアジペート、ジ(2-エチルヘキシル)アジペート、ジイソデシルアジペート、ジイソノニルアジペートなどのアジピン酸誘導体;
ジ-(2-エチルヘキシル)アゼレート、ジイソオクチルアゼレート、ジ-n-ヘキシルアゼレートなどのアゼライン酸誘導体;
ジ-n-ブチルセバケート、ジ-(2-エチルヘキシル)セバケート、ジイソデシルセバケート、ジ-(2-ブチルオクチル)セバケートなどのセバシン酸誘導体;
ジ-n-ブチルマレエート、ジメチルマレエート、ジエチルマレエート、ジ-(2-エチルヘキシル)マレエートなどのマレイン酸誘導体;
ジ-n-ブチルフマレート、ジ-(2-エチルヘキシル)フマレートなどのフマル酸誘導体;
トリエチルシトレート、トリ-n-ブチルシトレート、アセチルトリエチルシトレート、アセチルトリ-(2-エチルヘキシル)シトレートなどのクエン酸誘導体;
モノメチルイタコネート、モノブチルイタコネート、ジメチルイタコネート、ジエチルイタコネート、ジブチルイタコネート、ジ-(2-エチルヘキシル)イタコネートなどのイタコン酸誘導体;
ブチルオレエート、グリセリルモノオレエート、ジエチレングリコールモノオレエートなどのオレイン酸誘導体;
メチルアセチルリシノレート、ブチルアセチルリシノレート、グリセリルモノリシノレート、ジエチレングリコールモノリシノレートなどのリシノール酸誘導体;
n-ブチルステアレート、ジエチレングリコールジステアレートなどのステアリン酸誘導体;ジエチレングリコールモノラウレート、ジエチレングリコールジペラルゴネート、ペンタエリスリトール脂肪酸エステルなどのその他の脂肪酸誘導体;
トリエチルホスフェート、トリブチルホスフェート、トリ-(2-エチルヘキシル)ホスフェート、トリブトキシエチルホスフェート、トリフェニルホスフェート、クレジルジフェニルホスフェート、トリクレジルホスフェート、トリキシレニルホスフェート、トリス(クロロエチル)ホスフェートなどのリン酸誘導体;
ジエチレングリコールジベンゾエート、ジプロピレングリコールジベンゾエート、トリエチレングリコールジベンゾエート、トリエチレングリコールジ-(2-エチルブチレート)、トリエチレングリコールジ-(2-エチルヘキソエート)、ジブチルメチレンビスチオグリコレートなどのグリコール誘導体;
グリセロールモノアセテート、グリセロールトリアセテート、グリセロールトリブチレートなどのグリセリン誘導体;
エポキシヘキサヒドロフタル酸ジイソデシル、エポキシトリグリセライド、エポキシ化オレイン酸オクチル、エポキシ化オレイン酸デシルなどのエポキシ誘導体;
アジピン酸系ポリエステル、セバシン酸系ポリエステル、フタル酸系ポリエステルなどのポリエステル系可塑剤;
などが挙げられる。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、過塩素酸処理ハイドロタルサイトを含有していてもよい。過塩素酸処理ハイドロタルサイトは、例えば、ハイドロタルサイトを過塩素酸の希薄水溶液中に加えて撹拌し、その後必要に応じて、ろ過、脱水または乾燥することによって、ハイドロタルサイト中の炭酸アニオン(CO3 2-)の少なくとも一部を過塩素酸アニオン(ClO4 -)で置換して(炭酸アニオン1モルにつき過塩素酸アニオン2モルが置換する)、容易に製造することができる。上記ハイドロタルサイトと上記過塩素酸とのモル比は任意に設定できるが、一般には、ハイドロタルサイト1モルに対し、過塩素酸0.1~2モルとする。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、ゼオライトを安定剤として含有し得る。ゼオライトは、一般式:Mx/n・[(AlO2)x・(SiO2)y]・zH2O(一般式中、Mは原子価nの金属イオン、x+yは単位格子当たりの四面体数、zは水のモル数である)で表される化合物である。当該一般式中のMの種類としては、Na、Li、Ca、Mg、Znなどの一価又は二価の金属及びこれらの混合型が挙げられる。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、脂肪酸金属塩を含有していてもよい。好ましい脂肪酸金属塩は、一価脂肪酸金属塩であり、より好ましい脂肪酸金属塩は、炭素数12~24の一価脂肪酸金属塩であり、更に好ましい脂肪酸金属塩は、炭素数15~21の一価脂肪酸金属塩である。脂肪酸金属塩の具体例は、ステアリン酸リチウム、ステアリン酸マグネシウム、ステアリン酸アルミニウム、ステアリン酸カルシウム、ステアリン酸ストロンチウム、ステアリン酸バリウム、ステアリン酸亜鉛、ラウリン酸カルシウム、ラウリン酸バリウム、ラウリン酸亜鉛、2-エチルヘキサン酸バリウム、2-エチルヘキサン酸亜鉛、リシノール酸バリウム、リシノール酸亜鉛等である。脂肪酸金属塩を構成する金属としては、多価陽イオンを生成しうる金属が好ましく、2価陽イオンを生成しうる金属がより好ましく、周期表第3周期~第6周期の、2価陽イオンを生成しうる金属が更に好ましく、周期表第4周期の、2価陽イオンを生成しうる金属が特に好ましい。最も好ましい脂肪酸金属塩はステアリン酸亜鉛である。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、上記塩化ビニル樹脂微粒子(c)及び塩化ビニル樹脂微粒子(d)以外のダスティング剤(以下、「その他のダスティング剤」ということがある。)を含有し得る。その他のダスティング剤としては、炭酸カルシウム、タルク、酸化アルミニウムなどの無機微粒子;ポリアクリロニトリル樹脂微粒子、ポリ(メタ)アクリレート樹脂微粒子、ポリスチレン樹脂微粒子、ポリエチレン樹脂微粒子、ポリプロピレン樹脂微粒子、ポリエステル樹脂微粒子、ポリアミド樹脂微粒子などの有機微粒子;が挙げられる。中でも、平均粒子径が10nm以上100nm以下の無機微粒子が好ましい。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、着色剤、耐衝撃性改良剤、過塩素酸処理ハイドロタルサイト以外の過塩素酸化合物(過塩素酸ナトリウム、過塩素酸カリウム等)、酸化防止剤、防黴剤、難燃剤、帯電防止剤、充填剤、光安定剤、発泡剤、β-ジケトン類等の、その他の添加剤を含有し得る。
キナクリドン系顔料は、p-フェニレンジアントラニル酸類が濃硫酸で処理されて得られ、黄みの赤から赤みの紫の色相を示す。キナクリドン系顔料の具体例は、キナクリドンレッド、キナクリドンマゼンタ、キナクリドンバイオレットである。
ペリレン系顔料は、ペリレン-3,4,9,10-テトラカルボン酸無水物と芳香族第一級アミンとの縮合反応により得られ、赤から赤紫、茶色の色相を示す。ペリレン系顔料の具体例は、ペリレンレッド、ペリレンオレンジ、ペリレンマルーン、ペリレンバーミリオン、ペリレンボルドーである。
ポリアゾ縮合顔料は、アゾ色素が溶剤中で縮合されて高分子量化されて得られ、黄、赤系顔料の色相を示す。ポリアゾ縮合顔料の具体例は、ポリアゾレッド、ポリアゾイエロー、クロモフタルオレンジ、クロモフタルレッド、クロモフタルスカーレットである。
イソインドリノン系顔料は、4,5,6,7-テトラクロロイソインドリノンと芳香族第一級ジアミンとの縮合反応により得られ、緑みの黄色から、赤、褐色の色相を示す。イソインドリノン系顔料の具体例は、イソインドリノンイエローである。
銅フタロシアニン系顔料は、フタロシアニン類に銅を配位した顔料で、黄みの緑から鮮やかな青の色相を示す。銅フタロシアニン系顔料の具体例は、フタロシアニングリーン、フタロシアニンブルーである。
チタンホワイトは、二酸化チタンからなる白色顔料で、隠蔽力が大きく、アナタース型とルチル型がある。
カーボンブラックは、炭素を主成分とし、酸素、水素、窒素を含む黒色顔料である。カーボンブラックの具体例は、サーマルブラック、アセチレンブラック、チャンネルブラック、ファーネスブラック、ランプブラック、ボーンブラックである。
なお、β-ジケトン類の含有量は特定の範囲に限定されない。β-ジケトン類の好ましい含有量は、上記塩化ビニル樹脂粒子(a)と、上記塩化ビニル樹脂微粒子(c)と、必要に応じて添加される塩化ビニル樹脂微粒子(d)との合計100質量部に対し、0.1質量部以上5質量部以下である。
本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物は、上述した成分を混合して製造することができる。即ち、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の製造方法は、少なくとも、上記塩化ビニル樹脂粒子(a)と、上記トリメリット酸エステル可塑剤(b)と、上記塩化ビニル樹脂微粒子(c)とを混合する工程を含む。また、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の製造方法は、上記塩化ビニル樹脂微粒子(d)および/または上記極性基変性シリコーンオイル(e)を配合する場合には、上記塩化ビニル樹脂粒子(a)と、上記トリメリット酸エステル可塑剤(b)と、上記塩化ビニル樹脂微粒子(c)と、上記塩化ビニル樹脂微粒子(d)および/または上記極性基変性シリコーンオイル(e)とを混合する工程を含む。
ここで、上記塩化ビニル樹脂粒子(a)と、上記トリメリット酸エステル可塑剤(b)と、上記塩化ビニル樹脂微粒子(c)と、必要に応じて添加される塩化ビニル樹脂微粒子(d)、極性基変性シリコーンオイル(e)、及び添加剤の混合方法は限定されない。好ましい混合方法は、可塑剤及びダスティング剤(上記塩化ビニル樹脂微粒子(c)と、必要に応じて添加される塩化ビニル樹脂微粒子(d)とを含む)を除く成分をドライブレンドにより混合し、その後、可塑剤、ダスティング剤を順次、混合する方法である。ドライブレンドには、ヘンシェルミキサーの使用が好ましい。また、ドライブレンド時の温度は好ましくは50℃以上100℃以下、より好ましくは70℃以上80℃以下である。
本発明のリアルステッチ表皮用塩化ビニル樹脂成形体は、上述した本発明のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物を、粉体成形、好ましくはパウダースラッシュ成形して得る。パウダースラッシュ成形時の金型温度は、好ましくは200℃以上300℃以下、より好ましくは220℃以上280℃以下である。
本発明の積層体は、本発明のリアルステッチ表皮用塩化ビニル樹脂成形体と発泡ポリウレタン成形体を積層して得ることができる。積層方法は、リアルステッチ表皮用塩化ビニル樹脂成形体と、発泡ポリウレタン成形体とを別途作製した後に、熱融着、熱接着又は公知の接着剤などを用いることにより貼り合わせる方法;リアルステッチ表皮用塩化ビニル樹脂成形体上で発泡ポリウレタン成形体の原料となるイソシアネート類とポリオール類などとを反応させて重合を行うと共に、公知の方法によりポリウレタンの発泡を行い、リアルステッチ表皮用塩化ビニル樹脂成形体上に発泡ポリウレタン成形体を直接形成する方法;などが挙げられる。後者の方が、工程が簡素であり、かつ、種々の形状の積層体を得る場合においても、リアルステッチ表皮用塩化ビニル樹脂成形体と発泡ポリウレタン成形体との接着を確実に行うことができるのでより好適である。
また、塩化ビニル樹脂粒子及び塩化ビニル樹脂微粒子の平均粒子径(体積平均粒子径)は、塩化ビニル樹脂粒子及び塩化ビニル樹脂微粒子を、それぞれ水槽内に分散させ、以下に示す装置を用いて、光の回折・散乱強度分布を測定・解析し、粒子径及び体積基準の粒子径分布を測定することにより、算出した。
・装置:レーザー回折式粒度分布測定機(島津製作所製、SALD-2300)
・測定方式:レーザー回折及び散乱
・測定範囲:0.017μm~2500μm
・光源:半導体レーザー(波長680nm、出力3mW)
更に、極性基変性シリコーンオイルの重量平均分子量Mは、ASTM D 445-46Tに従いウッベローデ粘度計により測定した、25℃における極性基変性シリコーンオイルの動粘度(ηCS/25[単位:mm2/s])と、以下の式(I)とを用いて求めた。
log(ηCS/25)=1.00+0.0123M0.5 ・・・(I)
表1に示す配合成分のうち、可塑剤(トリメリット酸エステル可塑剤、及びエポキシ化大豆油)とダスティング剤である塩化ビニル樹脂微粒子とを除く成分をヘンシェルミキサーに入れて混合した。そして、混合物の温度が80℃に上昇した時点で可塑剤を添加し、ドライアップ(可塑剤が塩化ビニル樹脂粒子に吸収されて、上記混合物がさらさらになった状態をいう。)させた。その後、ドライアップさせた混合物が70℃以下に冷却された時点でダスティング剤である塩化ビニル樹脂微粒子を添加し、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物を調製した。
そして、得られたリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物を250℃に加熱したシボ付き金型に振りかけ、塩化ビニル樹脂成形シートの厚みが1mmになるよう調整した時間(具体的には14~17秒間)放置して溶融させた後、余剰の塩化ビニル樹脂組成物を振り落とした。その後、200℃に設定したオーブンに静置し、60秒経過した時点で金型を冷却水により冷却し、金型温度が40℃まで冷却された時点で150mm×200mm×1mmのリアルステッチ表皮用塩化ビニル樹脂成形シート(S1)(黒色)を金型から脱型した。そして、得られたリアルステッチ表皮用塩化ビニル樹脂成形シート(S1)について、以下の方法で各種物性を測定した。結果を表1に示す。
(1)初期引張試験
上記リアルステッチ表皮用塩化ビニル樹脂成形シート(S1)をJIS K6251に記載の1号ダンベルで打ち抜き、JIS K7113に準拠して、引張速度200mm/分で、-35℃における引張応力(引張強さ)及び引張伸びを測定した。塩化ビニル樹脂成形シートは、-35℃での引張伸びが高いほど、低温の柔軟性が優れている。
(2)加熱後引張試験
測定用試料を調製するため、得られたリアルステッチ表皮用塩化ビニル樹脂成形シート(S1)2枚を、210mm×300mm×10mmの金型中に重ならないようにシボ付き面を下にして敷いた。また、プロピレングリコールのPO(プロピレンオキサイド)・EO(エチレンオキサイド)ブロック付加物(水酸基価28、末端EO単位の含有量=10%、内部EO単位の含有量4%)50質量部、グリセリンのPO・EOブロック付加物(水酸基価21、末端EO単位の含有量=14%)50質量部、水2.5質量部、トリエチレンジアミンのエチレングリコール溶液(東ソー(株)製、商品名:「TEDA-L33」)0.2質量部、トリエタノールアミン1.2質量部、トリエチルアミン0.5質量部及び整泡剤(信越化学工業(株)製、商品名:「F-122」)0.5質量部からなるポリオール混合物と、ポリメチレンポリフェニレンポリイソシアネート(ポリメリックMDI)とを、インデックスが98になる比率で混合して混合液を作製した。次に、得られた混合液を、前記リアルステッチ表皮用塩化ビニル樹脂成形シート(S1)2枚の上にそれぞれ注ぎ、金型に305mm×395mm×2mmのアルミ板で蓋をし、金型を密閉した。5分後、1mm厚のリアルステッチ表皮用塩化ビニル樹脂成形シート(S1)からなる表皮に9mm厚、密度0.18g/cm3の発泡ポリウレタン成形体が裏打ちされた試料(積層体)が金型内に形成された。そして、得られた試料を金型から取り出した。
次に、得られた試料をオーブンに入れ、130℃で200時間加熱した後、発泡ポリウレタン層を当該試料から剥離し、加熱後リアルステッチ表皮用塩化ビニル樹脂成形シート(S2)を得た。得られた加熱後リアルステッチ表皮用塩化ビニル樹脂成形シート(S2)について、上記(1)初期引張試験と同様にして、-35℃における引張応力(引張強さ)及び引張伸びを測定した。塩化ビニル樹脂成形シートは、-35℃での引張伸びが高いほど、低温での柔軟性が優れている。
(3)リアルステッチ性
丸針とメス針とを一つずつ有するミシンを使用し、ポリエステル樹脂系の糸による2本の略平行な縫い目(糸-糸間距離10mm、糸ピッチ4mm、糸の色は赤色)を、上記リアルステッチ表皮用塩化ビニル樹脂成形シート(S1)(黒色)の4箇所に対してそれぞれ略同時に施した。そして、リアルステッチ加工されたリアルステッチ表皮用塩化ビニル樹脂成形シート(S3)を得た。
次に、210mm×300mm×10mmの金型内の下部に、250mm×340mm×2mmのアルミ板を置いた。そして、2枚のリアルステッチ加工されたリアルステッチ表皮用塩化ビニル樹脂成形シート(S3)を、シボ付き面が金型の上側(蓋側)になるように、それぞれ金型の蓋に接着させた。また、プロピレングリコールのPO・EOブロック付加物(水酸基価28、末端EO単位の含有量=10%、内部EO単位の含有量4%)50質量部、グリセリンのPO・EOブロック付加物(水酸基価21、末端EO単位の含有量=14%)50質量部、水2.5質量部、トリエチレンジアミンのエチレングリコール溶液(東ソー(株)製、商品名:「TEDA-L33」)0.2質量部、トリエタノールアミン1.2質量部、トリエチルアミン0.5質量部及び整泡剤(信越化学工業(株)製、商品名:「F-122」)0.5質量部からなるポリオール混合物と、ポリメチレンポリフェニレンポリイソシアネート(ポリメリックMDI)とを、インデックスが98になる比率で混合して混合液を作製した。次に、得られた混合液を金型に注ぎ、前記金型の蓋で金型を密閉した。5分後、1mm厚のリアルステッチ加工されたリアルステッチ表皮用塩化ビニル樹脂成形シート(S3)からなる表皮に、9mm厚、密度0.18g/cm3の発泡ポリウレタン成形体及び上記アルミ板がこの順で裏打ちされた試料(積層体)が形成された。そして、得られた試料を金型から取り出した。
次に、得られた試料を130℃に設定したオーブンに入れ、24時間毎に(最長504時間まで)オーブンから取り出して、リアルステッチ加工されたリアルステッチ表皮用塩化ビニル樹脂成形シート(S3)のリアルステッチ部への破損の有無を確認した。リアルステッチ部に破損が認められはじめた時間をもってリアルステッチ性の評価結果とした。リアルステッチ部に破損が認められはじめた時間の長い(即ち、遅い)方がリアルステッチ性に優れている。なお、表1中、504時間経過後もリアルステッチ部に破損が認められなかったものは、「>504」と表記している。
2)新第一塩ビ(株)製、ZEST 1000Z(塩化ビニル系樹脂粒子、平均重合度1000、平均粒子径130μm)
3)花王(株)製、トリメックスN-08
4)(株)ADEKA製、アデカサイザーO-130S
5)協和化学工業(株)製、アルカマイザー5
6)水澤化学工業(株)製、MIZUKALIZER DS
7)昭和電工(株)製、カレンズ DK-1
8)堺化学工業(株)製、SAKAI SZ2000
9)(株)ADEKA製、LA-72
10)(株)ADEKA製、アデカスタブ 522A
11)(株)ADEKA製、アデカスタブ LS-12
12)信越シリコーン(株)製、KF-9701(重量平均分子量5000)
13)新第一塩ビ(株)製、ZEST PQLTX(塩化ビニル系樹脂微粒子(塩化ビニル樹脂微粒子(d))、平均重合度800、平均粒子径2μm)
14)東ソー(株)製、リューロンペースト761(塩化ビニル系樹脂微粒子(塩化ビニル樹脂微粒子(c))、平均重合度2100、平均粒子径2μm)
15)大日精化工業(株)製、DA PX-1720ブラック(A)
なお、実施例2と実施例3のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物をパウダースラッシュ成形して得られた成形体の物性はそれぞれ同等である。ここで、表記してはいないが、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物そのものの溶融性の点において、実施例2のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の方が、実施例3のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物よりも溶けやすく、より優れていた。
Claims (15)
- 平均重合度が1200以上5000以下の塩化ビニル樹脂粒子(a)と、
トリメリット酸エステル可塑剤(b)と、
平均重合度が1000以上5000以下の塩化ビニル樹脂微粒子(c)と、
を含む、リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物。 - 前記塩化ビニル樹脂粒子(a)の平均粒子径が50μm以上500μm以下である、請求項1に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物。
- 前記塩化ビニル樹脂微粒子(c)の平均粒子径が0.1μm以上10μm以下である、請求項1又は2に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物。
- 更に、平均重合度が1000未満の塩化ビニル樹脂微粒子(d)を含む、請求項1~3のいずれか1項に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物。
- 前記塩化ビニル樹脂微粒子(d)の平均粒子径が0.1μm以上10μm以下である、請求項4に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物。
- 更に、極性基変性シリコーンオイル(e)を含む、請求項1~5のいずれか1項に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物。
- パウダースラッシュ成形に用いられる、請求項1~6のいずれか1項に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物。
- 請求項1~7のいずれか1項に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物をパウダースラッシュ成形してなるリアルステッチ表皮用塩化ビニル樹脂成形体。
- 糸が縫い付けられている、請求項8に記載のリアルステッチ表皮用塩化ビニル樹脂成形体。
- 自動車インスツルメントパネル表皮用である、請求項8又は9に記載のリアルステッチ表皮用塩化ビニル樹脂成形体。
- 発泡ポリウレタン成形体と、請求項8~10のいずれか1項に記載のリアルステッチ表皮用塩化ビニル樹脂成形体とを有する、積層体。
- 前記塩化ビニル樹脂粒子(a)と、前記トリメリット酸エステル可塑剤(b)と、前記塩化ビニル樹脂微粒子(c)とを混合することを含む、請求項1~3のいずれか1項に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の製造方法。
- 前記塩化ビニル樹脂粒子(a)と、前記トリメリット酸エステル可塑剤(b)と、前記塩化ビニル樹脂微粒子(c)と、前記塩化ビニル樹脂微粒子(d)とを混合することを含む、請求項4または5に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の製造方法。
- 前記塩化ビニル樹脂粒子(a)と、前記トリメリット酸エステル可塑剤(b)と、前記塩化ビニル樹脂微粒子(c)と、前記極性基変性シリコーンオイル(e)とを混合することを含む、請求項6に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の製造方法。
- 請求項1~7のいずれか1項に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物、または、請求項12~14のいずれか1項に記載のリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物の製造方法に従って製造したリアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物をパウダースラッシュ成形することを含む、リアルステッチ表皮用塩化ビニル樹脂成形体の製造方法。
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| CN201580056321.6A CN107075217B (zh) | 2014-10-27 | 2015-10-20 | 真缝线表皮用粉体成型性氯乙烯树脂组合物、成型体及它们的制造方法、以及层叠体 |
| US15/519,157 US10689509B2 (en) | 2014-10-27 | 2015-10-20 | Powder moldable vinyl chloride resin composition for real-stitched surface skin and method for producing the same, vinyl chloride resin molded product for real-stitched surface skin and method for producing the same, and laminate |
| ES15854540T ES2748885T3 (es) | 2014-10-27 | 2015-10-20 | Composición de resina de cloruro de vinilo moldeable en polvo para revestimientos superficiales con punteado real y método para producir la misma, producto moldeado de resina de cloruro de vinilo para revestimientos superficiales con punteado real y método para producir el mismo, y laminado |
| EP15854540.0A EP3214127B1 (en) | 2014-10-27 | 2015-10-20 | Powder moldable vinyl chloride resin composition for real-stitched surface skin and method for producing the same, vinyl chloride resin molded product for real-stitched surface skin and method for producing the same, and laminate |
| JP2016556208A JP6750503B2 (ja) | 2014-10-27 | 2015-10-20 | リアルステッチ表皮用粉体成形性塩化ビニル樹脂組成物及びその製造方法、リアルステッチ表皮用塩化ビニル樹脂成形体及びその製造方法、並びに、積層体 |
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| WO2015141182A1 (ja) * | 2014-03-19 | 2015-09-24 | 日本ゼオン株式会社 | 粉体成形用塩化ビニル樹脂組成物、塩化ビニル樹脂成形体及び積層体 |
| JPWO2016139959A1 (ja) * | 2015-03-05 | 2017-12-14 | 日本ゼオン株式会社 | 粉体成形用塩化ビニル樹脂組成物、塩化ビニル樹脂成形体及び積層体 |
| MX2018011860A (es) | 2016-03-28 | 2019-02-13 | Zeon Corp | Composicion de resina de cloruro de vinilo, producto moldeado de resina de cloruro de vinilo, y laminado. |
| CN110303690A (zh) * | 2019-06-25 | 2019-10-08 | 浙江吉利汽车研究院有限公司 | 一种带真缝线的仪表板表皮的搪塑加工方法 |
| CN111040338B (zh) * | 2019-12-26 | 2022-05-10 | 金发科技股份有限公司 | 一种低气味软质pvc材料 |
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| EP3214127B1 (en) | 2019-08-14 |
| US10689509B2 (en) | 2020-06-23 |
| ES2748885T3 (es) | 2020-03-18 |
| CN107075217A (zh) | 2017-08-18 |
| EP3214127A4 (en) | 2018-04-04 |
| EP3214127A1 (en) | 2017-09-06 |
| MX387650B (es) | 2025-03-18 |
| MX2017005033A (es) | 2017-06-30 |
| JPWO2016067564A1 (ja) | 2017-08-10 |
| JP6750503B2 (ja) | 2020-09-02 |
| US20170233567A1 (en) | 2017-08-17 |
| CN107075217B (zh) | 2020-06-23 |
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