WO2005083007A1 - 液晶性樹脂組成物 - Google Patents
液晶性樹脂組成物 Download PDFInfo
- Publication number
- WO2005083007A1 WO2005083007A1 PCT/JP2005/003349 JP2005003349W WO2005083007A1 WO 2005083007 A1 WO2005083007 A1 WO 2005083007A1 JP 2005003349 W JP2005003349 W JP 2005003349W WO 2005083007 A1 WO2005083007 A1 WO 2005083007A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- liquid crystalline
- crystalline resin
- aromatic
- resin composition
- phenylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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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
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
- C08L101/12—Compositions of unspecified macromolecular compounds characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/12—Polyester-amides
Definitions
- the present invention uses a liquid crystalline resin having a melting point of 330 ° C. or higher (hereinafter sometimes referred to as “high heat-resistant liquid crystalline resin”) as a base resin to improve the slidability. And a liquid crystalline resin composition having excellent fluidity and mechanical properties.
- Liquid crystalline resins typified by aromatic polyester resins and aromatic polyester amide resins are widely used as engineering plastics having excellent mechanical properties, thermal properties, and moldability. Have been. With the expansion of such application fields, there is a case where a liquid crystalline resin material having further improved specific characteristics is required. The improvement in sliding characteristics is a typical example.
- liquid crystalline resins have higher heat resistance than many general-purpose thermoplastic resins.Compounds and molding processes are performed at high temperatures, and molded products are often used at high temperatures. The types of slidability improvers that can be used are greatly restricted.
- Patent Document 1 JP-A-59-147034
- Patent Document 2 JP-A-1-60649
- An object of the present invention is to solve the problems of the prior art as described above and to provide a highly heat-resistant liquid crystalline resin composition having excellent slidability.
- the present invention relates to 100 parts by weight of a liquid crystalline resin (A) having a melting point of 330 ° C. or more, and 0.1 to 100 parts by weight of a tetrafluoroethylene.perfluoro (alkylbutyl ether) copolymer (B). It is a liquid crystalline resin composition formulated.
- the highly heat-resistant liquid crystalline resin composition of the present invention has excellent slidability that is not inferior to conventional slidability-improved liquid crystalline resin compositions, and has an unprecedented excellent heat. It has stability, fluidity and mechanical properties, and can be applied to sliding members in fields requiring high heat resistance.
- liquid crystalline resin composition of the present invention uses a liquid crystalline resin having a melting point of 330 ° C. or higher (high heat-resistant liquid crystalline resin) as a base resin.
- liquid crystalline resin is a melt-processable polymer that has the property of forming an optically anisotropic molten phase. Point to.
- the properties of the anisotropic molten phase can be confirmed by a conventional polarization inspection method using an orthogonal polarizer. More specifically, the confirmation of the anisotropic molten phase can be performed by using a Leitz polarizing microscope and observing the molten sample placed on a Leitz hot stage under a nitrogen atmosphere at a magnification of 40 times.
- the liquid crystalline resin applicable to the present invention is inspected between orthogonal polarizers, polarized light is normally transmitted even when it is in a molten stationary state, and exhibits optical anisotropy.
- the high heat-resistant liquid crystalline resin (A) having the melting point and properties as described above and used in the present invention is not particularly limited, but may be an aromatic polyester or an aromatic polyesteramide. Polyesters containing preferred aromatic polyesters or aromatic polyesteramides partially in the same molecular chain are also included in the range. These are preferably at least about 2. OdlZg, more preferably 2.0-10, the logarithmic viscosity (IV) of OdlZg when dissolved in pentafluorophenol at a concentration of 0.1% by weight at 60 ° C. Is used.
- the aromatic polyester or aromatic polyesteramide as the high heat-resistant liquid crystalline resin (A) applicable to the present invention is particularly preferably a group of aromatic hydroxycarboxylic acids, aromatic hydroxyamines and aromatic diamines.
- a polyester mainly comprising one or more aromatic hydroxycarboxylic acids and derivatives thereof;
- Preferred examples of the specific compound constituting the liquid crystalline resin (A) applicable to the present invention include, for example, aromatic hydroxycarbon such as p-hydroxybenzoic acid and 6-hydroxy-2 naphthoic acid. Acids, 2,6-dihydroxynaphthalene, 1,4-dihydroxynaphthalene, 4,4'-dihydroxyl-oxibiphenyl, hydroquinone, resorcinol, compounds represented by the following general formulas (I) and (II), etc.
- Aromatic diols aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, 4,4'-diphenyldicarboxylic acid, 2,6 naphthalenedicarboxylic acid and compounds represented by the following general formula (III): p-aminophenol, p- And aromatic amines such as phenyl-diamine.
- Particularly preferred highly heat-resistant liquid crystalline resins (A) to which the present invention is applied include aromatic hydroxycarboxylic acids such as p-hydroxybenzoic acid and 6-hydroxy-2 naphthoic acid as main constituent unit components.
- Aromatic polyesters and polyesteramides are particularly preferred.
- a wholly aromatic liquid-crystalline polymer which has a structural unit represented by the following general formula (I), (II), (III), or (IV) as a constituent and exhibits optical anisotropy when melted Preferably polyester Yes.
- Ar 2,6 naphthalene
- Ar is 1,2-phenylene, 1,3-phenylene, and 1,4-phenylene
- One or more selected from ethylene, Ar is 1,3 phenylene, 1,4 phenylene
- preferred proportion of the structural unit represented by the formula (IV) is a structural unit of the for the total of all structural units (I) is 40- 75 mol 0/0, more preferably 40- 60 mole 0/0, further more preferred properly is 45- 60 mol 0/0, the structural unit force (II) .5- 30 mole 0/0, more preferably 17.5- 30 molar 0/0 , (III) constituent units of 8.5- 30 mol 0/0, more preferably 17.5- 30 mole 0/0, preferably 1 one 6 mol from configuration unit 0.1 8 moles 0 I of (IV) 0 / 0 .
- the tetrafluoroethylene 'perfluoro mouth (alkyl butyl ether) copolymer (B) used in the liquid crystalline resin composition of the present invention is defined as tetrafluoroethylene and perfluoro mouth (alkyl butyl ether).
- tetrafluoroethylene and perfluoro mouth alkyl butyl ether.
- the content of perfluoro (alkyl butyl ether) in the copolymer (B) is preferably selected from the range of 5 to 20% by weight from the viewpoint of mechanical durability and heat resistance.
- the compounding ratio of the tetrafluoroethylene 'perfluoro (alkylbutyl ether) copolymer (B) to 100 parts by weight of the highly heat-resistant liquid crystalline resin (A) of the present invention is 0.1 to 100 parts by weight. And preferably 10 to 40 parts by weight. If the copolymer (B) is added in excess of this mixing ratio, not only molding problems such as cracking and surface layer peeling will occur, but also the flowability will be poor, and the molding of thin-walled precision parts characterized by high flowability This significantly impairs the properties of the liquid crystalline resin composition of the present invention which enables the following.
- the tetrafluoroethylene 'perfluoro (alkylbutyl ether) copolymer (B) applicable to the present invention has a higher melt viscosity than the high heat-resistant liquid crystalline resin (A).
- the copolymer (B) is less than the above compounding ratio, dispersibility sufficient to improve the sliding property on the sliding surface of the molded product cannot be exhibited.
- the tetrafluoroethylene.perfluoro (alkylbutyl ether) copolymer (B) has an MFR (load of 5 kg) force at 372 ° C. of 100 (g / 10 min).
- the liquid crystalline resin composition of the present invention may contain various fibrous, powdery, and plate-like inorganic and organic fillers according to the purpose of use.
- Fibrous fillers include glass fiber, asbestos fiber, silica fiber, silica'alumina fiber, alumina fiber, zirconia fiber, boron nitride fiber, silicon nitride fiber, boron fiber, potassium titanate fiber, and wollastonite.
- Inorganic fibrous substances such as silicate fibers, magnesium sulfate fibers, aluminum borate fibers, and metal fibrous materials such as stainless steel, aluminum, titanium, copper, and brass.
- a particularly typical fibrous filler is glass fiber.
- a high melting point organic fiber-like substance such as polyamide, polyester resin, and acrylic resin can also be used.
- Granular fillers include carbon black, graphite, silica, quartz powder, glass beads, milled glass fiber, glass balloon, glass powder, calcium silicate, aluminum silicate, kaolin, clay, diatomaceous earth.
- Silicates such as wollastonite, iron oxide, titanium oxide, zinc oxide, antimony trioxide, oxides of metals such as alumina, calcium carbonate, carbon dioxide
- Metal carbonates such as gnesium; metal sulfates such as calcium sulfate and barium sulfate; and other powders such as fly, silicon carbide, silicon nitride, boron nitride, and various metal powders.
- Examples of the plate-like filler include My power, glass flake, talc, various metal foils, and the like.
- organic filler examples include heat-resistant high-strength synthetic fibers such as aromatic polyester fibers, liquid crystalline polymer fibers, aromatic polyamide, and polyimide fibers.
- inorganic and organic fillers can be used alone or in combination of two or more.
- the combined use of a fibrous filler and a granular or plate-like filler is a preferred combination, particularly in terms of having both mechanical strength, dimensional accuracy, electrical properties and the like.
- the amount of the inorganic filler is 120 parts by weight or less, preferably 20 to 80 parts by weight, based on 100 parts by weight of the high heat-resistant liquid crystalline polymer (A).
- a sizing agent or a surface treatment agent can be used if necessary.
- a nucleating agent, carbon black, a pigment such as an inorganic calcined pigment, and additives such as an antioxidant, a stabilizer, a plasticizer, a lubricant, a release agent, and a flame retardant are added to the liquid crystalline resin composition.
- a composition imparted with desired properties by being added thereto is also included in the range of the liquid crystalline resin composition according to the present invention.
- the above components may be blended in the above composition ratio and kneaded. Usually, it is kneaded with an extruder, extruded into pellets, and used for injection molding, but is not limited to kneading with such an extruder.
- the highly heat-resistant liquid crystalline polymer composition of the present invention is formed into a molded article by a known molding means such as injection molding. As described above, the high heat-resistant liquid crystalline polymer composition of the present invention has improved moldability, so that productivity can be improved, such as mold protection and unmanned operation during molding of various industrial parts such as electricity and electronics. It is effective in planning.
- the deflection temperature under load was measured according to IS075 / A.
- liquid crystalline resin A-1 used in Examples and Comparative Examples was prepared by the following method.
- the mixture was stirred at 140 ° C for 1 hour under a nitrogen stream, and then heated to 360 ° C over 5.5 hours while stirring was continued.
- the pressure was reduced to 5 Torr (that is, 667 Pa) over 30 minutes, and melt polymerization was carried out while distilling low boiling components such as acetic acid.
- nitrogen was introduced to pressurize the mixture, the polymer was discharged from the lower part of the polymerization vessel, and the strand was pelletized to pelletize.
- the obtained pellet was heat-treated at 300 ° C for 8 hours under a nitrogen stream to obtain a liquid crystalline resin A-1.
- the melting point of the liquid crystalline resin A-1 was 352 ° C.
- low temperature type liquid crystalline polyester ⁇ -2 (manufactured by Polyplastics Co., Ltd., “Vectra ⁇ 950”: melting point: 280 ° C) is treated with polytetrafluoroethylene (Kitamura Co., Ltd., KT-610J). ) was added (Comparative Example 3), a composition was prepared in the same manner as in the Example (resin temperature was 300 ° C), and a test piece was prepared (resin temperature was 280 ° C). The results are shown in Table 1.
- the composition is to be prepared at a resin temperature of 300 ° C, a low mixing temperature
- a resin temperature of 300 ° C a low mixing temperature
- the tetrafluoroethylene 'perfluoro (alkyl vinyl ether) copolymer becomes poorly dispersed and the composition is to be prepared at a resin temperature of 370 ° C according to Example 12, the low-temperature liquid crystal Since the melt viscosity of the reactive polyester becomes extremely low, the dispersion of the tetrafluoroethylene / perfluoro (alkylbutyl ether) copolymer becomes poor, and in any case, appearance defects such as surface peeling of the molded product occur, and the evaluation is not worthy of evaluation.
- the tetrafluoroethylene 'perfluoro (alkyl vinyl ether) copolymer becomes poorly dispersed and the composition is to be prepared at a resin temperature of 370 ° C according to Example 12, the low-temperature liquid crystal Since the melt viscosity of the reactive
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006510513A JPWO2005083007A1 (ja) | 2004-03-02 | 2005-03-01 | 液晶性樹脂組成物 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004057891 | 2004-03-02 | ||
| JP2004-057891 | 2004-03-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005083007A1 true WO2005083007A1 (ja) | 2005-09-09 |
Family
ID=34909065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/003349 Ceased WO2005083007A1 (ja) | 2004-03-02 | 2005-03-01 | 液晶性樹脂組成物 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPWO2005083007A1 (ja) |
| WO (1) | WO2005083007A1 (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154169A (ja) * | 2005-11-08 | 2007-06-21 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物及び電子部品用成形品 |
| JPWO2021095656A1 (ja) * | 2019-11-11 | 2021-05-20 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05105804A (ja) * | 1991-10-17 | 1993-04-27 | Nippon Petrochem Co Ltd | 摺動性樹脂組成物 |
| WO1994013738A1 (fr) * | 1992-12-10 | 1994-06-23 | Daikin Industries, Ltd. | Composition de resine thermoplastique |
| JPH09278966A (ja) * | 1996-04-10 | 1997-10-28 | Du Pont Mitsui Fluorochem Co Ltd | 金属基材被覆用組成物 |
| JP2002179776A (ja) * | 2000-09-22 | 2002-06-26 | Polyplastics Co | 全芳香族ポリエステル及びポリエステル樹脂組成物 |
| JP2003253073A (ja) * | 2002-02-28 | 2003-09-10 | Hitachi Cable Ltd | 耐摩耗性樹脂組成物 |
-
2005
- 2005-03-01 WO PCT/JP2005/003349 patent/WO2005083007A1/ja not_active Ceased
- 2005-03-01 JP JP2006510513A patent/JPWO2005083007A1/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05105804A (ja) * | 1991-10-17 | 1993-04-27 | Nippon Petrochem Co Ltd | 摺動性樹脂組成物 |
| WO1994013738A1 (fr) * | 1992-12-10 | 1994-06-23 | Daikin Industries, Ltd. | Composition de resine thermoplastique |
| JPH09278966A (ja) * | 1996-04-10 | 1997-10-28 | Du Pont Mitsui Fluorochem Co Ltd | 金属基材被覆用組成物 |
| JP2002179776A (ja) * | 2000-09-22 | 2002-06-26 | Polyplastics Co | 全芳香族ポリエステル及びポリエステル樹脂組成物 |
| JP2003253073A (ja) * | 2002-02-28 | 2003-09-10 | Hitachi Cable Ltd | 耐摩耗性樹脂組成物 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007154169A (ja) * | 2005-11-08 | 2007-06-21 | Sumitomo Chemical Co Ltd | 液晶ポリエステル樹脂組成物及び電子部品用成形品 |
| JPWO2021095656A1 (ja) * | 2019-11-11 | 2021-05-20 | ||
| WO2021095656A1 (ja) * | 2019-11-11 | 2021-05-20 | Agc株式会社 | 粉体組成物、フィルム、及びフィルムの製造方法 |
| CN114729198A (zh) * | 2019-11-11 | 2022-07-08 | Agc株式会社 | 粉体组合物、膜和膜的制造方法 |
| JP7597035B2 (ja) | 2019-11-11 | 2024-12-10 | Agc株式会社 | 粉体組成物、フィルム、及びフィルムの製造方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2005083007A1 (ja) | 2007-11-15 |
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