WO2009060924A1 - 剥離シート及び粘着体 - Google Patents
剥離シート及び粘着体 Download PDFInfo
- Publication number
- WO2009060924A1 WO2009060924A1 PCT/JP2008/070257 JP2008070257W WO2009060924A1 WO 2009060924 A1 WO2009060924 A1 WO 2009060924A1 JP 2008070257 W JP2008070257 W JP 2008070257W WO 2009060924 A1 WO2009060924 A1 WO 2009060924A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- release
- release sheet
- polyolefin
- layer
- agent layer
- 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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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
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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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/022—Mechanical properties
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/06—Interconnection of layers permitting easy separation
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- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
- C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09J133/08—Homopolymers or copolymers of acrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/201—Adhesives in the form of films or foils characterised by their carriers characterised by the release coating composition on the carrier layer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/203—Adhesives in the form of films or foils characterised by their carriers characterised by the structure of the release feature on the carrier layer
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/21—Paper; Textile fabrics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/40—Adhesives in the form of films or foils characterised by release liners
- C09J7/403—Adhesives in the form of films or foils characterised by release liners characterised by the structure of the release feature
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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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
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- B32B2307/00—Properties of the layers or laminate
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2519/00—Labels, badges
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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
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/005—Presence of polyolefin in the release coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2433/00—Presence of (meth)acrylic polymer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/14—Layer or component removable to expose adhesive
- Y10T428/1476—Release layer
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31855—Of addition polymer from unsaturated monomers
- Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon
Definitions
- the present invention relates to a release sheet having a release agent layer formed of a polyolefin resin string, and particularly, a release sheet that is ffl for use in a precision electronic nameplate label such as a hard disk drive and a low gas generating tape.
- a release sheet having a release agent layer formed of a polyolefin resin string, and particularly, a release sheet that is ffl for use in a precision electronic nameplate label such as a hard disk drive and a low gas generating tape.
- a release sheet used for an adhesive tape or the like is formed by laminating a release agent layer on a Sit sheet, and a silicone release agent force S is generally used for the release agent layer.
- Silicone release agent is excellent for peeling »13 ⁇ 4 force s, but part of low molecular weight silicone compound is transferred to pressure sensitive adhesive, and the adhesive tape may be adhered to the adherend may be contaminated by silicone compound .
- the adhesive sheet is used for fixing an electron beam such as a hard disk drive: ⁇ , and there is a possibility that an electronic error “J” is attracted by silicone contamination.
- non-silicone-based release agents such as long-chain alkyl release agents, alkyd release agents, fluorine release agents, polyolefin release agents, etc., instead of silicone release agents Considering ffl as a release agent.
- long-chain alkyl-based release agents and alkyd-type release agents have limited release because of their high release force, and fluorine-based release agents are expensive and ffiffl in large quantities although they have low release force. It is difficult.
- polyolefin-based release agents can be made relatively low in release force, and are therefore being widely efficacious in applications where ⁇ release force is required (see Patent Documents 1 to 6).
- the surface roughness Ra is 1 to 3 on the surface of the release agent layer. The ability to form micrometer irregularities has been studied.
- Patent Document 1 JP 2005-350650 A
- Patent Document 2 Japanese Patent No. 3776120
- Patent Document 3 Japanese Patent Laid-Open No. 2003-147295
- Patent Document 4 Japanese Patent Laid-Open No. 2003-147294
- Patent Document 5 Special Table 1 1-508958
- Patent Document 6 Sho 57-45790 Disclosure of Invention
- the invention is going to be decided
- the release sheet using polyolefin resin as the release agent layer is wound up in a roll and stored, so that the back surface of the release sheet and the release agent layer are firmly attached to the release sheet. There is a problem that it becomes difficult to feed out the sheet from the mouth.
- the polyolefin resin used for the release agent is usually a polymerized at a single site such as meta-mouth.
- polyolefin resins polymerized with a single-site catalyst have a narrow molecular weight and a narrow distribution range. Therefore, when heated to a predetermined distance, the resin rapidly changes: ⁇ . Therefore, even if the blocking force S does not occur immediately after production, the blocking force S may occur during storage for a long time at a relatively high temperature. Similarly, even if the stripping ability is good immediately after production, the stripping ability may deteriorate after long-term storage.
- the present invention has been made in view of the above problems, and has excellent peeling even after being stored in a roll shape for a long period of time, and generates a blocking force S.
- the purpose is to provide a release sheet that uses polyolefin-based lumber.
- the release sheet according to the present invention is a polyolefin resin yarn containing a polyolefin thermoplastic resin having a density of 0.800 to 0.905 g / cm 3 polymerized using manocite cocoons!
- the average elastic modulus at 23 ° C at a depth of 50 to 100 nm from the surface measured by the nanoindentation method is 0.1 to 0.3 GPa, and the convex surface is concave and convex It is characterized in that it has a release agent layer that is formed of S and has a surface roughness Ra of 100 to 700 nm.
- the surface roughness R a 2 is the surface roughness of the release agent layer after leaving the release sheet in an environment of 40 ° C. for 30 days
- the surface roughness ratio R a 2 no R ai is preferably 0.9 to 1.1.
- the polyolefin resin waste product has a menoleto flow rate force of S 1 to 20 gZ 10 minutes.
- the polyolefin-based thermoplastic resin is selected from the group consisting of, for example, polyethylene, polypropylene, polybutene, poly (4-methinoleone 1-pentene), and a copolymer of ethylene and ⁇ -olefin having 3 to 10 carbon atoms: I 0 Contains at least one polyolefin resin.
- the release sheet may be constituted by laminating a release agent layer on the undercoat layer via an undercoat layer, and it is preferable that the release sheet does not substantially contain silicone.
- the pressure-sensitive adhesive body comprises: an ax, a release agent layer laminated at the age of St, and an adhesive layer adhered and laminated on the release agent layer, and the release agent layer comprises Density polymerized using a surface formed by a polyolefin resin spatter containing 0.88 g 0 to 0.95 g Z cm 3 of a polyolefin resin and measured by the nanoindentation method From depth 50 to; I 0 0 0 nm, the average elastic modulus at 23 ° C is 0.1 to 0.3 GPa, and the surface roughness Ra is 1 0 0 to 7 0 0 nm It is a sign.
- the pressure-sensitive adhesive layer is preferably formed of, for example, an acrylic pressure-sensitive adhesive, and the pressure-sensitive adhesive body preferably does not substantially contain a silicone compound.
- the release sheet using polyolefin resin can maintain excellent release even when stored for a long period of time, and prevent the occurrence of strong blocking.
- FIG. 1 is an enormous cross-sectional view of the release sheet according to the present embodiment.
- FIG. 2 is a schematic cross-sectional view showing the pressure-sensitive adhesive body according to the present embodiment.
- FIG. 1 is a cross-sectional view of a release sheet according to an embodiment of the present invention.
- FIG. 2 is a schematic cross-sectional view of an adhesive body according to an embodiment.
- the release sheet 10 is configured by sequentially laminating an undercoat layer 12 and a peel layer 13 on one surface of the release sheet £ W 11.
- the release agent layer 13 is formed of a polyolefin resin yarn! And has an infinite number of irregularities S on its surface 13 A.
- the pressure-sensitive adhesive 20 has one side of the pressure-sensitive adhesive sheet X 2 1 ⁇ adhesive sheet formed by laminating the occupant layer 2 2 3 force adhesive layer 2 2 is the release agent layer 1 3 Attached to the release sheet 10 so as to be in close contact with the surface 1 3 A.
- the release sheet 10 may be rolled up and stored as a single unit, or it may be attached to the adhesive sheet 23 to form an adhesive body 20 and then wound up in the form of a mouth. It may be stored.
- the product is a polyolefin-based heat-resisting resin with a density of 0.800 to 0.905 gcm 3 polymerized using at least a manosite catalyst.
- the density is measured according to JISK 7 1 1 2-1 9 9 9.
- the density of the polyolefin-based thermoplastic resin is preferably 0. 8 5 0 ⁇ 0. 9 0 5 gZ cm 3, particularly preferably 0. 8 8 0 ⁇ 0. 9 0 5 gcm 3.
- Examples of the above mano! ⁇ Site ⁇ include Ziegler-based ⁇ and Philips-based chestnut oppy standard-based catalysts.
- Ziegler cocoons are made from titanated ⁇ ⁇ vanadium compounds, etc. ⁇ / made from insecticides, organic aluminum and other compounds, butterfly horns, and swollen bodies made from oxides such as silicon, titanium and magnesium. It is a composed catalyst.
- the Phillips ft butterfly is an awakening composed of a heel made of chromium oxide and a female carrier made of an oxide such as aluminum.
- the standard type horn butterfly is a catalyst composed of a cage made of molybdenum oxide and a catalyst body made of an oxide such as aluminum.
- the ratio (Mw / Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) by PC) is preferably 3 or more, more preferably ⁇ MwZMn is 3 to 10, and particularly preferably w / Mn. Is 3.6-8.
- polystyrene-based thermoplastic resin examples include polyethylene, polypropylene, polybutene, poly (4-methylol-1-pentene), a copolymer of ethylene and 3 to C carbon atoms; A mixture of two or more selected from these S is used. Among these, a copolymer of ethylene and ⁇ -olefin having 3 to 10 carbon atoms is particularly preferable.
- the stripping ability of the release sheet 10 can be increased. Can be good.
- thermoplastic resin is polymerized using a multi-site cage, it is easy to make Mw / Mn the above
- the resin component of the above-mentioned polyolefin resin sincerity, it may contain only a polyolefin thermoplastic resin having a density of 0.80 to 0.95 gZ cm 3 as ⁇ 3 $. From within this density range, for example, female polyethylene (LDPE, density: 0.910 g cm 3 or more and less than 0.930 g / cm 3 ), medium density polyethylene (MDPE, density) : less than 0. 930 gZcm 3 or 0. 942 gZcm 3), high density polyethylene (HDPE, density: 0. 942 cm 3 or more) ports Riechiren resins and the like; polypropylene resin (PP); Orefuin elastomers one (TPO), etc.
- LDPE female polyethylene
- MDPE medium density polyethylene
- HDPE high density polyethylene
- PP polypropylene resin
- TPO Orefuin elastomers one
- the ratio (Mw / n) of the average molecular weight (Mw) to the number average molecular weight (n) by gel permeation chromatography (GPC) of the polyethylene resin (Mw / n) is preferably 6 or more from the viewpoint of improving femaleity. .
- the ratio of the polyolefin-based thermoplastic resin polymerized using a manosite catalyst having a density of 0.800-0.905 g / cm 3 contained in the above-mentioned polyolefin-based resin composition is a polyolefin-based resin moon # bandit If 100 is 100, preferably 50 weight 0 /. ⁇ 100 weight 0 Especially preferably 60 weight 0 /. ⁇ 100 weight 0/0.
- the polyolefin-based resin is a polyolefin-based thermoplastic as described above! It can also contain ⁇ polyolefin resin and other resins.
- the polyolefin-based greaves yarn has a melt flow rate (MFR) of 1 to 20 g / 10 min. If the MF R force is less than 1 g Z for 10 minutes, the flow rate of the resin is low and it is difficult to form a film, and if it exceeds 20 g / l 0 minutes, the fluidity of the resin becomes too high and forms a film with a certain thickness ⁇ T becomes difficult.
- MFR melt flow rate
- the upper l3 ⁇ 4t oil strength s suitable: mixed or separated by work, the depth from the surface 13 A of the release agent layer 13 to 50: L 000 nm average elastic modulus at 23 ° C Force SO. 1 ⁇ 0.3GPa is set.
- the average elastic modulus at 23 ° ⁇ was measured by the nanoindentation method [measurement: nanoindenter (trade name. Na no Ind enter SA2, MTS3 ⁇ 4)], and the average elastic modulus of the surface 13A of the release agent layer 13 was measured.
- Select 20 locations arbitrarily, measure the elastic modulus from 50 nm depth from each surface to 1000 nm depth ( ⁇ evenly up to 70 positions, and calculate the arithmetic average value. It is a thing.
- the average elastic modulus at 23 ° C. of the release agent layer 13 By setting the average elastic modulus at 23 ° C. of the release agent layer 13 within the above range, it is possible to appropriately set the release force when the release sheet 10 is peeled from the adhesive sheet 23. Further, by setting the average elastic modulus at 23 ° C. to 0.1 GPa or more, blocking is less likely to occur when the release sheet 10 or the adherend 20 is rolled.
- the surface 13 A of the release agent layer 13 is formed with an infinite number of uneven forces S so that the surface roughness is 100 to 700 nm.
- the unevenness of the surface 13 A is formed by pressing a roller or the like having a rough unevenness force S on the surface by embossing or the like against the difficult release agent layer 13.
- the surface roughness Raj is based on ANS I / ASME B46.1: 1995, at 23 ° C with an optical interference surface roughness meter (trade name. WYKO NT1100, Ve ec ⁇ ⁇ ⁇ ). This is the arithmetic average roughness measured under the condition that the internal lens ratio is 1 time. Since the release agent layer 13 is soft, measuring the surface roughness R ai with the contact method may increase the measurement error due to the surface change at the time, but more accurate when measured non-formally as in this embodiment. Surface roughness R ai can be obtained.
- the release sheet 10 has a small change in surface roughness even after long-term sag under high conditions.
- the surface roughness ratio Ra 2 ZRa is preferably 0.9 to 1.1.
- the surface roughness R a 2 was measured under the same conditions as the surface roughness R ai.
- the release sheet 10 according to this actual expanded state is a release sheet shelved for applications that require a relatively low release force, and the release force when peeling the release sheet 10 from the adhesive sheet 23 is 50-500. mN 20 mm, preferably.
- the peeling force exceeds the above upper limit, the peeling force becomes too heavy, and there is a possibility that a peeling failure that peels off together with the partial strength of the adhesive S peeling sheet 10 may occur. If the lower limit is not reached, the peeling force becomes too light, and the adhesive sheet 23 may be peeled off from the release sheet 10 unexpectedly.
- the peeling force refers to a value obtained by measuring ⁇ in JISZ0237.
- Undercoat layer 12 is one of release sheet Xie 11, extrusion lamination, coating
- the release sheet is formed as a layer between the release sheet Si 1 1 and the release agent layer 1 3.
- the undercoat layer 12 may be formed from a polyolefin resin thread similar to the release agent layer 13 described above, but is preferably made of polyethylene having a high strength, and the above-mentioned average elastic modulus is the release agent layer 1. Power higher than 3; preferred.
- One or more other layer forces S may be further provided on the undercoat layer 12.
- the release agent layer 13 is formed on the undercoat layer 12 directly or through one or more other layers by being extruded and subjected to polyolefin resin strength S, for example.
- the release sheet Xie 1 1 and the necrotized sheet Xie 2 1 can be used as appropriate from the known age known as the release sheet 1 0 or the print sheet 2 3, for example, A resin film formed of a heatable resin or the like, a metal foil, or a composite thereof can be used.
- the pressure-sensitive adhesive that forms the pressure-sensitive adhesive layer 22 can be used without particular limitation as long as it is a non-silicone pressure-sensitive adhesive. For example, an acrylic pressure-sensitive adhesive is used.
- the average elastic modulus and surface roughness Ra of the release agent layer 13 and the density force of the resin that has been ⁇ iiE Locking is suppressed and the release force of the release sheet 10 is improved.
- the release agent layer 13 contains a resin that is polymerized due to difficulty in manosite, the release agent molecules 4 and the yarn are non-uniform, so that the release agent layer 13 3 s changes when heated. It can be suppressed. Therefore, even after the release sheet is made into a ronole shape, even when it is stored for a long time in a relatively high temperature environment, the change in surface roughness and the change in peel force are reduced, thereby increasing the blocking force. Peeling ability is maintained.
- the release agent layer 13 is formed of a polyolefin resin composition
- the adhesive layer 2 2 is formed of a non-silicone resin. 0 can be substantially free of siliconization ⁇
- S3 ⁇ 4 degree polyethylene (trade name “Novatech LD LC604J, Mw / Mn 8.0) 3 om * part
- the resin was used in the same manner as in Example 1. In Example 2, the MFR of the polyolefin resin composition was 3. Og / 10 min.
- polyethylene resin with a density of 0.919 g cm 3 (trade name “Novatec LD LC605YJ, manufactured by Nippon Polyethylene Co., Ltd.) as a polyolefin resin spatter for forming ⁇ 3 ⁇ 4 ⁇ was carried out in the same manner as in Example 1.
- the MFR of the polyolefin resin composition was 7.4 g / l 0 min.
- the surface roughness R a of the release agent layer and the average elastic modulus at 23 ° C. were measured for the release sheet of each example.
- a ruled release sheet was prepared.
- the mouth-like release sheet was placed in a constant temperature bath at 40 and allowed to stand for 30 hours to perform a stepping treatment.
- the release sheet that had undergone the crushed treatment was fed out of a roll, formed into a sheet shape, and the surface roughness Ra 2 after 1 W advance was measured.
- the release sheet after the advance treatment was unwound from the roll, and in the same manner as the above-mentioned difficulty, the pressure-sensitive adhesive sheet was attached to the unrolled sheet-like release sheet to form an adhesive body. And in the adhesive body, the peeling force of the peeling sheet after heat promotion was measured.
- Tables 1 and 2 show the surface roughness R a 2 and peel force after stepping, the surface roughness ratio R a 2 / R a, and the peel force change rate calculated by the following formula. Peeling force change rate cry (peeling force before struggling—peeling force after striking) z
- the release sheet that had been subjected to a crushed treatment was fed out of a roll to provide blocking resistance.
- Table 1 “No” is given for those that have few procks and the release sheet can be manipulated smoothly.
- X indicates that there was a lot of proking and it was difficult to feed the release sheet.
- the surface roughness R a ! Is set to 100-70 nm
- the average elastic modulus at 23 ° C. is set to 0.1-0.3 GPa
- a resin polymerized by a predetermined multisite angular butterfly is used.
- the peel force could be set to an appropriate value.
- physical properties such as surface roughness could be reduced even after applying gratitude, thus maintaining good anti-proking separation and peeling force.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/741,828 US20100255240A1 (en) | 2007-11-08 | 2008-10-30 | Release sheet and pressure-sensitive adhesive article |
| KR1020107010063A KR101479477B1 (ko) | 2007-11-08 | 2008-10-30 | 박리 시트 및 점착체 |
| CN2008801152112A CN101855080B (zh) | 2007-11-08 | 2008-10-30 | 剥离片材及压敏粘合剂制品 |
| JP2009540092A JP5284976B2 (ja) | 2007-11-08 | 2008-10-30 | 剥離シート及び粘着体 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007290921 | 2007-11-08 | ||
| JP2007-290921 | 2007-11-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2009060924A1 true WO2009060924A1 (ja) | 2009-05-14 |
Family
ID=40625810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2008/070257 Ceased WO2009060924A1 (ja) | 2007-11-08 | 2008-10-30 | 剥離シート及び粘着体 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100255240A1 (ja) |
| JP (1) | JP5284976B2 (ja) |
| KR (1) | KR101479477B1 (ja) |
| CN (1) | CN101855080B (ja) |
| WO (1) | WO2009060924A1 (ja) |
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| JP2011016330A (ja) * | 2009-07-10 | 2011-01-27 | Toyobo Co Ltd | 粘着シート離型用積層フィルム |
| JP2011518937A (ja) * | 2008-04-30 | 2011-06-30 | テーザ・ソシエタス・ヨーロピア | ポリオレフィンからなる剥離フィルム及びそのフィルムの使用 |
| JP2012061712A (ja) * | 2010-09-16 | 2012-03-29 | Nippon Zeon Co Ltd | 光学フィルムロール及び光学フィルムロールの製造方法 |
| KR20150145194A (ko) * | 2014-06-18 | 2015-12-29 | 아지노모토 가부시키가이샤 | 보호 필름 부착 접착 시트 |
| JPWO2018147335A1 (ja) * | 2017-02-07 | 2019-02-14 | 東レ株式会社 | 二軸配向ポリプロピレンフィルム |
| KR20210057007A (ko) | 2018-09-07 | 2021-05-20 | 도레이 필름 카코우 가부시키가이샤 | 이형 필름 및 그것을 사용한 점착 시트 적층체 |
| JP2023069194A (ja) * | 2021-11-05 | 2023-05-18 | リンテック株式会社 | 粘着ラベル |
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| CN112574681A (zh) * | 2020-12-21 | 2021-03-30 | 镝普材料(深圳)有限公司 | 一种pvc保护膜及其制备方法 |
| KR102559057B1 (ko) | 2021-03-19 | 2023-07-25 | 한신피앤엘 주식회사 | 평활도가 개선된 이형지 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011518937A (ja) * | 2008-04-30 | 2011-06-30 | テーザ・ソシエタス・ヨーロピア | ポリオレフィンからなる剥離フィルム及びそのフィルムの使用 |
| JP2011016330A (ja) * | 2009-07-10 | 2011-01-27 | Toyobo Co Ltd | 粘着シート離型用積層フィルム |
| JP2012061712A (ja) * | 2010-09-16 | 2012-03-29 | Nippon Zeon Co Ltd | 光学フィルムロール及び光学フィルムロールの製造方法 |
| KR20150145194A (ko) * | 2014-06-18 | 2015-12-29 | 아지노모토 가부시키가이샤 | 보호 필름 부착 접착 시트 |
| KR102342380B1 (ko) | 2014-06-18 | 2021-12-24 | 아지노모토 가부시키가이샤 | 보호 필름 부착 접착 시트 |
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| JP7777959B2 (ja) | 2021-11-05 | 2025-12-01 | リンテック株式会社 | 粘着ラベル |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101479477B1 (ko) | 2015-01-06 |
| CN101855080A (zh) | 2010-10-06 |
| US20100255240A1 (en) | 2010-10-07 |
| JP5284976B2 (ja) | 2013-09-11 |
| KR20100075614A (ko) | 2010-07-02 |
| JPWO2009060924A1 (ja) | 2011-03-24 |
| CN101855080B (zh) | 2013-03-13 |
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