WO2004048464A1 - 離型剤、粘着性積層体および粘着性積層テープ - Google Patents
離型剤、粘着性積層体および粘着性積層テープ Download PDFInfo
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- WO2004048464A1 WO2004048464A1 PCT/JP2003/014999 JP0314999W WO2004048464A1 WO 2004048464 A1 WO2004048464 A1 WO 2004048464A1 JP 0314999 W JP0314999 W JP 0314999W WO 2004048464 A1 WO2004048464 A1 WO 2004048464A1
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- Prior art keywords
- release agent
- release
- polyolefin
- layer
- adhesive
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Classifications
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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
- 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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- 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
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B27/06—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
-
- 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
- C08K5/01—Hydrocarbons
-
- 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
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
-
- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers 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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- 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
- C09J7/401—Adhesives in the form of films or foils characterised by release liners characterised by the release coating composition
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/748—Releasability
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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
- B32B2405/00—Adhesive articles, e.g. adhesive tapes
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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
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
-
- 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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- 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
-
- 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
Definitions
- the present invention relates to a release agent, and more particularly, to a release agent for forming a release layer in contact with an adhesive layer.
- the present invention also relates to an adhesive laminate and an adhesive laminated tape.
- release agent to protect an adhesive surface of an adhesive tape (adhesion in the present specification has a broad meaning including adhesion and the like).
- adhesive adhesive in the present specification has a broad meaning including adhesion and the like.
- silicone release agent One of the best release agents in terms of release performance is silicone release agent.
- silicone-based release agents contain trace amounts of siloxane-based gas, and this siloxane-based gas may cause corrosion and other serious obstacles in some applications.
- Fluororesin-based release agents have been proposed in place of silicone-based release agents, but their release performance is not always satisfactory. Disclosure of the invention
- an object of the present invention is to provide a new release agent that replaces a silicone release agent or a fluororesin release agent.
- the gist of the present invention is that a polyolefin (A) having a weight average molecular weight of 1 ⁇ 10 4 or more which may have a functional group has a viscosity at 23 ° C. measured at 23 ° C. according to JISK-7117. . 1 to 1 X 1 0 4 contains a hydrocarbon (B) is a Senchiboizu, polyolefins (a): the weight ratio of the hydrocarbon (B) is 9 7: 3-6 0: 40, which is a release agent for forming a release layer in contact with the adhesive layer.
- Another aspect of the present invention resides in an adhesive laminate having an adhesive layer and a release layer in contact with the adhesive layer, wherein the release layer comprises the release agent.
- Another gist of the present invention is an adhesive laminated tape in which an adhesive layer and a release layer are sequentially provided on at least one surface of a sheet-like substrate, wherein the release layer comprises the above-mentioned release agent.
- the adhesive laminated tape characterized by the following.
- Still another aspect of the present invention is an adhesive laminated tape in which an adhesive layer and a release layer are provided between two sheet-like substrates, wherein the release layer is formed of the release agent.
- the present invention resides in an adhesive laminated tape.
- the release agent of the present invention is a release agent for forming a release layer in contact with the adhesive layer, and has a weight-average molecular weight of 1 ⁇ 10 4 or more which may have a functional group as an essential component. Containing polyolefin (A) and a hydrocarbon (B) having a viscosity of 1 to 1 ⁇ 10 4 cmb at 23 ° C. measured according to JISK-7117.
- polyolefin (A) homopolymers and copolymers of various olefins, copolymers of olefin and a monomer having a functional group, and the like can be used.
- Specific examples include (co) polymers of ⁇ -olefins such as ethylene, propylene, 1-butene, 1-hexene, and 1-octene.
- ring-opened polymers of alicyclic olefins such as norpolene, cyclopentene and cyclooctene can also be used.
- styrene-butadiene copolymers and nucleated hydrogenated products of styrene and isoprene copolymers are used. You can do it.
- polyolefin is polyethylene or ethylene and other It is a copolymer with olefin.
- specific examples of the copolymer include propylene, 1-butene, 1-pentene, 3-methyl-1-butene, 1-hexene, 4-methyl-1-pentene, 3-methyl-1-pentene, and 1-pentene.
- a copolymer of ethylene and norpolleneethylidene norpollene can also be used.
- the ethylene content of these copolymers is usually at least 30 mol%, preferably at least 50 mol%, more preferably at least 80 mol%. If the ethylene content is too low, the heat resistance of the release agent tends to decrease, which is not preferable.
- the upper limit of the ethylene content is usually 100 mol%.
- polyolefin (A) is a copolymer of polypropylene or propylene with ethylene or another olefin as described above.
- Polypropylene may be any of isotactic, syndiotactic, and atactic, and the copolymer may be any of a random copolymer and a block copolymer.
- the propylene content in the copolymer of propylene and other olefins is usually at least 50 mol%, preferably at least 70 mol%. If the propylene content is too low, the heat resistance of the release agent tends to decrease, which is not preferred.
- the upper limit of the propylene content is usually 100 mol%.
- polyolefin (A) Various different catalyst systems, such as Ziegler-based catalysts and meta-opens-based catalysts, are used in the production of polyolefin (A).
- the polyolefin used in the present invention is preferably produced using a metallocene catalyst. This is because a metallocene-based catalyst gives a polyolefin having a narrow molecular weight distribution and a small amount of low molecular weight components.
- a release agent using polyolefin produced using a meta-mouth catalyst is less sticky, and can effectively gel at the time of crosslinking, and is resistant to crosslinking. To enhance chemical properties Can be.
- Polyolefin can be produced by any known polymerization method such as solution polymerization, gas-phase polymerization, and slurry polymerization.
- a polyolefin (A) having a weight average molecular weight of 1 ⁇ 10 4 or more is used. If the weight-average molecular weight is lower than this, the mechanical strength of the release agent decreases, and the release layer made of the release agent does not peel well when peeled from the adhesive layer, or the release layer is It may partially remain on the adhesive layer.
- the weight average molecular weight of the polyolefin is preferably 3 ⁇ 10 4 or more. The upper limit is usually 100 X 10 4 .
- the density of the polyolefin (A) is usually selected from 86 to 0.90 gZc c, preferably from 0.87 to 0.89 g / c c. If the density of polyolefin (A) is too low, the proportion of amorphous parts increases and the amount of low molecular weight hydrocarbons dissolved increases, but on the other hand, the mechanical strength of the release layer due to the decrease in the proportion of crystalline parts And heat resistance is lowered, which is not preferable. On the other hand, if the density of the polyolefin (A) is too high, the ratio of the amorphous portion is reduced, so that the amount of the low molecular weight hydrocarbon dissolved is reduced. Hydrogen bleeds out and migrates to the adhesive layer, which tends to inhibit the adhesiveness of the adhesive layer, which is not preferred.
- the melt index of polyolefin (A) (measured at 230 ° C, 2.16 kgf load) is usually selected from the range of 0.5 to 20 g / 10 min. Release agents using polyolefins with a melt index outside this range can be extruded. It tends to be difficult to form a release sheet by molding.
- the polyolefin (A) may be provided with a functional group or cross-linked.
- a polyolefin having a functional group When a polyolefin having a functional group is used, a release agent having excellent substrate adhesion can be obtained.
- the functional group to be added include a reactive functional group such as an epoxy group, an acid anhydride group, a carboxyl group, a hydroxyl group, an amino group, an isocyanate group, a trimethoxysilyl group, a vinyl group, an isopropyl group, and a Examples include groups having an unsaturated bond, such as acrylate groups and aryl groups.
- These functional groups may be imparted in a conventional manner, for example, by subjecting a polyolefin to a monomer having a functional group in the presence of a peroxide.
- a peroxide a commonly used one such as ketone peroxide, octaperoxide, and diazyl peroxide may be used.
- the amount of the functional group in the polyolefin to which the functional group is added is usually 10 mol% or less, preferably 5 mol% or less. If the number of the functional groups is too large, the release property of the release agent using the polyolefin may be impaired. However, the lower limit of the amount of the functional group when the functional group is provided is usually 0.05 mol% from the viewpoint of the effect.
- the hydrocarbon (B) used in the present invention has a viscosity at 23 ° C. of 1 to 1 ⁇ 10 4 cmboise measured according to JIS K-7117. Release agents using liquid hydrocarbons with viscosities of less than 1 centivoise have problems such as stickiness and the release layer falling off the adhesive layer. Those having a viscosity exceeding 1 ⁇ 10 4 centimeters (non-flowable) generally contain a large amount of those having crystallinity, and release agents using such hydrocarbons have a large elastic modulus. The releasability tends to decrease.
- the above viscosity measurement is performed as follows using a B-type rotational viscometer in accordance with JIS K-7117. That is, set the No. 2 rotor in a B-type rotary viscometer manufactured by Tokyo Keiki Co., Ltd., measure three times at a sample temperature of 23 ° C and a rotor speed of 60 rpm, and use the average value.
- the hydrocarbon (B) used in the present invention has a weight average molecular weight of 300 to 30. 00 is preferred.
- Low-molecular-weight hydrocarbons having a weight-average molecular weight of less than 300 generally have a large amount of volatile components, and a release agent using such low-molecular-weight hydrocarbons tends to cause bleed-out or stickiness of low-molecular-weight hydrocarbons.
- a release agent using a high-molecular-weight hydrocarbon having a weight-average molecular weight of more than 300 generally has a large elastic modulus and is liable to deteriorate in release properties.
- the weight average molecular weight of the hydrocarbon (B) is preferably from 300 to 2000.
- the hydrocarbon (B) one having one of an acyclic aliphatic chain structure and a saturated alicyclic structure is usually used, and one having both of the above structures is preferable.
- the ratio of the number of carbon atoms in the acyclic aliphatic chain structure to the total number of carbon atoms is usually 50% or more, and preferably 65%.
- the hydrocarbon (B) may have an aromatic ring structure, and its carbon number is usually 30% or less, preferably 10% or less, as a ratio to the total number of carbon atoms. It is said.
- the ratio of carbon atoms in the acyclic aliphatic chain structure, the saturated aliphatic ring structure and the aromatic ring structure of the hydrocarbon (B) can be measured according to ASTM D-3283.
- the hydrocarbon (B) of the petroleum fractions, those marketed under the name of processing oil, process oil, etc., for example, from those marketed by Idemitsu Kosan Co., Ltd. as “Diana Process Oil” as appropriate You can select and use it.
- the release agent of the present invention contains the aforementioned polyolefin (A) and hydrocarbon (B) as essential components, but may further contain other additional components.
- additional component include a crosslinking agent, that is, a compound having a plurality of functional groups that react with the functional group of polyolefin.
- the amount of the crosslinking agent to be used is usually selected from the range of 1 to 10 as a molar ratio of the functional group of the polyolefin / the functional group of the crosslinking agent. If the molar ratio of the functional groups is out of this range, the number of unreacted functional groups will increase, and the releasability will generally decrease.
- the release agent of the present invention is prepared by mixing the above-mentioned components, and dissolving or kneading in a solvent. It can be manufactured by The weight ratio of polyolefin (A): hydrocarbon (B) is selected from the range of 97: 3 to 60:40. In general, if the ratio of hydrocarbon (B) is small, the releasability decreases, and if the ratio is large, bleed out of hydrocarbon (B) increases. The preferred range of the above ratio is 80:20 to 40:60.
- the pressure-sensitive adhesive laminate of the present invention has a pressure-sensitive adhesive layer and a release layer in contact with the pressure-sensitive adhesive layer, and the release layer is made of the above-mentioned release agent.
- Such an adhesive laminate (layer structure: adhesive layer / release layer) is used for the production of the following adhesive laminated tape.
- a layer structure of release layer / adhesive layer / release layer it can be used as a double-sided adhesive tape for adhering two objects to each other.
- the pressure-sensitive adhesive layer constituting the pressure-sensitive adhesive laminate will be described in the production of the pressure-sensitive adhesive laminated tape.
- the adhesive laminated tape of the present invention includes two basic embodiments.
- One of the basic aspects of the adhesive laminated tape of the present invention is an adhesive laminated tape in which an adhesive layer and a mold layer are sequentially provided on at least one surface of a sheet-like substrate. That is, the layer configuration is base material / adhesive layer / release layer.
- the release layer may be peeled off to expose the adhesive layer surface, and this may be adhered to the object. As a result, the layer structure of the adhesive layer / release layer on the surface of the object is obtained.
- Another basic aspect of the adhesive laminated tape of the present invention is an adhesive laminated tape in which an adhesive layer and a release layer are provided between two sheet-like substrates.
- the layer configuration is: base material adhesive layer Z release layer / base material.
- the base material and the release layer may be peeled off to expose the adhesive layer surface, and this may be adhered to an object.
- the layer configuration of the adhesive layer / substrate on the surface of the object is obtained.
- Adhesive laminated tape having a layer structure of release layer / adhesive layer / substrate / adhesive layer Z release layer. Before use, release the release layers on both sides, Used as an adhesive laminate tape.
- a sheet provided with a release layer and an adhesive layer on each side of the substrate (layer structure: release layer Z substrate adhesive layer) is wound into a roll shape (release layer / Substrate Z Adhesive layer ⁇ Release layer Substrate / adhesive layer ⁇ )
- release layer Z substrate adhesive layer a sheet provided with a release layer and an adhesive layer on each side of the substrate
- peel off the adhesive layer and release layer and pull out the sheet.
- the exposed surface of the adhesive layer can be adhered to the object.
- the sheet-like base material used on the release layer side and the adhesive layer side include those commonly used, for example, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polypropylene, polyethylene, and polymethylpentene.
- Films made of resin such as polyolefin and poly-carbonate, paper such as dalassin paper, woodfree paper, coated paper, impregnated paper, synthetic paper, and metal foil such as aluminum and stainless steel may be used as appropriate.
- the thickness of the substrate is usually 10 to 10 Om, preferably 25 to 50 x m.
- the substrate may be subjected to a corona treatment, a plasma treatment, a flame plasma treatment, or the like, or may be provided with a primer layer or the like in order to improve the adhesiveness with the adhesive layer or the release layer.
- polymer materials such as polyethylene, polypropylene, styrene-based copolymer, polyester, polyurethane, polypinyl alcohol, polyethyleneimine, polyacrylate, polymethacrylate, and modified products thereof (so-called anchor coating agent) ) Can be used.
- the formation of the pressure-sensitive adhesive layer and the release layer in the production of the pressure-sensitive adhesive tape may be performed by a conventional method.
- the release layer is usually formed by applying a release agent solution onto a sheet-like substrate, laminating the release agent onto the sheet-like substrate by melt extrusion from an extruder, and laminating the substrate material and It is formed by co-extruding a release agent from an extruder.
- pressure-sensitive adhesive those generally referred to as pressure-sensitive adhesives such as acrylic, rubber, polyurethane, and silicone are mainly used, but other pressure-sensitive adhesives can also be used.
- the adhesive layer is formed by applying an adhesive solution on a sheet-like base material or a release layer provided on the sheet-like base material, transferring an adhesive layer applied to another base material by transfer coating, It is formed by co-extruding the raw material, release agent and adhesive with an extruder. Rukoto can.
- the melt index of the release agent (measured at 230 ° C under a load of 2.16 kgf) is usually 5 to 40 g / 10 min, preferably 1 to 20 g / min. g / 10 minutes. Extrusion moldability is reduced if the melt index is larger or smaller than the above value.
- the base material and the release layer are further co-extruded with the base material, the release layer and the pressure-sensitive adhesive layer, they can be subsequently monoaxially or biaxially stretched to reduce the thickness and improve the strength. I can do it.
- the stretching ratio is usually 2 to 10 times.
- the thickness of the release layer is usually 5 to 150 m, preferably 0.5 to 10 m, and more preferably 0.5 to 5 xm. If the thickness of the release layer is too small, it is difficult to ensure the uniformity of the thickness. Conversely, if the thickness is too large, the elastic modulus of the laminate decreases, which is not preferable.
- the following were used as polyolefin, adhesive and hydrocarbon.
- the weight average molecular weight of the polyolefin and the amount of hydrocarbon was calculated by gel permeation chromatography using a calibration curve prepared with standard polystyrene. The measurement conditions are as follows.
- AD 806 MS manufactured by Showa Denko KK
- weight average molecular weight is 80,000
- ratio of weight average molecular weight to number average molecular weight is 2.2
- density 0.900 g / cc.
- Polyolefin (PE-3) 100 parts by weight of polyolefin (PE-1), 3 parts by weight of 2-hydroxyethyl methacrylate, 0.25 parts by weight of 2,5-dimethyl-2,5 di-tert-butyl peroxide After mixing, using a Lapoplast mill kneader (manufactured by Toyo Seiki Co., Ltd.) in a nitrogen atmosphere at 180 ° C. for 3 minutes at a rotation speed of 60 rpm to obtain a modified ethylene resin having a hydroxyl group.
- Lapoplast mill kneader manufactured by Toyo Seiki Co., Ltd.
- Hexene random copolymer measured value of characteristic absorption intensity of carbonyl group (FT_IR)
- FT_IR characteristic absorption intensity of carbonyl group
- HEMA 2-hydroxylethyl methacrylate
- Polyolefin (PE-4) Ethylene-hexene copolymer (Nippon Polyethylene Co., Ltd., Nichinen KF 370); weight average molecular weight is 70,000, and the ratio of weight average molecular weight to number average molecular weight is 2. 0, density is 0.905 gZc c.
- the content of HEMA estimated from the measured values of the characteristic absorption intensity of this product is 1.1% by weight, and the weight average molecular weight is 80,000.
- Polyacrylic ester-based adhesive A 100 parts by weight of n-butyl acrylate and 5 parts by weight of acrylic acid are dissolved in toluene, and polymerized by a conventional method using benzoyl peroxide to obtain a weight average.
- Low molecular weight hydrocarbon (LH-1): "Diana Process Oil PW-90" manufactured by Idemitsu Kosan Co., Ltd .; weight average molecular weight is 880, number average molecular weight is 760, pour point is 15.0 ° C (value listed in catalog)
- the acyclic aliphatic chain structure has 71.0% of carbon atoms, the saturated alicyclic structure has 29.0% of carbon atoms and a viscosity of 195 centipoise. The measurement of the viscosity was performed by the method described in the text.
- Low molecular weight hydrocarbon (LH-2): "Diana Process Oil PW-380" manufactured by Idemitsu Kosan; weight average molecular weight is 1,450, number average molecular weight is 1,200, pour point is 15 ° C (listed in catalog) Value), the number of carbon atoms in the acyclic aliphatic chain structure is 73. 0%, and the saturated aliphatic ring structure has 27.0% of carbon atoms.
- the viscosity measured in the same manner as above was 950 cV.
- Polyolefin (PE-1) and hydrocarbons were blended in the proportions shown in Table 3 and kneaded using a twin-screw extruder at 230 ° (: average residence time: 3 minutes) to produce a release agent.
- the release agent was extruded from a T-die molding machine at 240 ° C to obtain a release sheet consisting of only a release layer.
- Polyolefin and hydrocarbon were blended in the proportions shown in Table 3 and kneaded using a twin screw extruder at 230 ° C with an average residence time of 3 minutes to produce a release agent.
- LLDPE density 93 gZc c, melt index 2.0 gZ 10 min
- the above release agent were co-extruded at 240 ° C to obtain a release sheet comprising a base material and a release layer.
- the thickness of the substrate was 25 zm and the thickness of the release layer was 1 m.
- the production of the release agent was such that the zeolite-based antiblocking agent (average particle diameter 7.5 m) was 2 parts by weight with respect to 100 parts by weight of the release agent. Was blended in.
- Example 7 the pressure-sensitive adhesive sheet obtained in the same manner as in Example 1 was pressed on the above-mentioned release sheet in the same manner as in Example 1 to obtain a pressure-sensitive adhesive sheet having a layer structure of base material / release layer / adhesive layer. A laminated tape was prepared.
- Example 7
- Example 7 To the release agent solution prepared in Example 7, NY718A manufactured by Mitsubishi Chemical Corporation (a 76% by weight butyl acetate solution of trifunctional isocyanate in which 3 moles of aliphatic diisocyanate was added to 1 mole of triol) was crosslinked. A release agent solution containing the agent was prepared. This solution contains 1.1 equivalents of isocyanate groups based on HEMA contained in polyolefin (PE-3) as a crosslinking agent. Except that this release agent solution was used, a release sheet comprising a base material and a release layer was obtained in exactly the same manner as in Example 7. Next, in the same manner as in Example 7, an adhesive laminated tape having a layer structure of the base material / release layer Z adhesive layer Z base material was produced.
- Example 9 Example 9:
- Example 10 An exfoliated kraft paper “80 g / m 2 : manufactured by Daio Paper Co., Ltd.”
- the same release agent as that used in Example 4 was melt-extruded at 240 ° C to obtain a primer layer, and the laminate was laminated to form a base primer layer / release layer.
- a mold sheet was obtained.
- the same operation as in Example 2 was performed to prepare an adhesive laminated tape having a layer structure of the substrate Z primer layer / release layer / adhesive layer substrate.
- Example 10 Example 10:
- Example 11 A laminated tape was produced.
- Example 12 56 parts by weight of polyolefin (PE-1), 24 parts by weight of polyolefin (PE-5) and 20 parts by weight of hydrocarbon (LH-1) are dissolved in toluene heated to 60 ° C, and then cooled to release agent A release agent solution having a concentration of 2% by weight was prepared. To this release agent solution was added the above-mentioned “NY718A” manufactured by Mitsubishi Chemical Corporation, and the release agent containing a crosslinking agent was added. A mold solution was prepared. This solution contains, as a cross-linking agent, 1.2 equivalents of isocyanate groups based on HEMA contained in the polyolefin (PE-5). Except that this crosslinking agent-containing release agent solution was used, the same operation as in Example 7 was performed to obtain a release sheet comprising a base material and a release layer. An adhesive laminated tape having a layer structure of the material was produced.
- Example 12 60 parts by weight of polyolefin (PE-1), 24 parts by weight of polyolef
- Example 2 The procedure of Example 2 was repeated, except that a release agent consisting of 70 parts by weight of polyethylene (PE-4) and 30 parts by weight of hydrocarbon (LH-2) was used. An adhesive laminated tape was produced from the layer structure of release layer / adhesive layer / substrate.
- PE-4 polyethylene
- LH-2 hydrocarbon
- Example 1 except that polyethylene (PE-1) itself was used as a release agent.
- the release agent contains 2% by weight of an anti-blocking agent. * 2: The release agent contains a crosslinking agent.
- the new release agent which replaces a silicone type release agent and a fluororesin type release agent is provided.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- General Chemical & Material Sciences (AREA)
- Adhesive Tapes (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03775872A EP1566407A4 (en) | 2002-11-27 | 2003-11-25 | RELEASE AGENT, LAYERED ADHESIVE ADHESIVE AND LAYERED ADHESIVE TAPE |
US11/136,718 US20050271851A1 (en) | 2002-11-27 | 2005-05-25 | Release agent, adhesive laminate and adhesive laminated tape |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002344553 | 2002-11-27 | ||
JP2002-344553 | 2002-11-27 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/136,718 Continuation US20050271851A1 (en) | 2002-11-27 | 2005-05-25 | Release agent, adhesive laminate and adhesive laminated tape |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004048464A1 true WO2004048464A1 (ja) | 2004-06-10 |
Family
ID=32375957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/014999 WO2004048464A1 (ja) | 2002-11-27 | 2003-11-25 | 離型剤、粘着性積層体および粘着性積層テープ |
Country Status (4)
Country | Link |
---|---|
US (1) | US20050271851A1 (ja) |
EP (1) | EP1566407A4 (ja) |
CN (1) | CN1717445A (ja) |
WO (1) | WO2004048464A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8003725B2 (en) | 2002-08-12 | 2011-08-23 | Exxonmobil Chemical Patents Inc. | Plasticized hetero-phase polyolefin blends |
US7652092B2 (en) | 2002-08-12 | 2010-01-26 | Exxonmobil Chemical Patents Inc. | Articles from plasticized thermoplastic polyolefin compositions |
AU2003272213A1 (en) | 2002-08-12 | 2004-02-25 | Exxonmobil Chemical Patents Inc. | Plasticized polyolefin compositions |
US7531594B2 (en) | 2002-08-12 | 2009-05-12 | Exxonmobil Chemical Patents Inc. | Articles from plasticized polyolefin compositions |
US7271209B2 (en) | 2002-08-12 | 2007-09-18 | Exxonmobil Chemical Patents Inc. | Fibers and nonwovens from plasticized polyolefin compositions |
US7998579B2 (en) | 2002-08-12 | 2011-08-16 | Exxonmobil Chemical Patents Inc. | Polypropylene based fibers and nonwovens |
US8192813B2 (en) | 2003-08-12 | 2012-06-05 | Exxonmobil Chemical Patents, Inc. | Crosslinked polyethylene articles and processes to produce same |
US8389615B2 (en) | 2004-12-17 | 2013-03-05 | Exxonmobil Chemical Patents Inc. | Elastomeric compositions comprising vinylaromatic block copolymer, polypropylene, plastomer, and low molecular weight polyolefin |
WO2007011530A2 (en) | 2005-07-15 | 2007-01-25 | Exxonmobil Chemical Patents, Inc. | Elastomeric compositions |
US20090152754A1 (en) * | 2007-12-12 | 2009-06-18 | Sumitomo Chemical Company, Limited | Thermoplastic elastomer composition for foam injection molding, foam body, and process for producing foam body |
KR20110104051A (ko) | 2008-12-19 | 2011-09-21 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 접착 용품의 제조 방법 |
JP5323666B2 (ja) * | 2009-09-29 | 2013-10-23 | 日東電工株式会社 | 剥離剤、離型材および粘着テープ |
CN102549103A (zh) * | 2009-10-05 | 2012-07-04 | 日东电工株式会社 | 剥离剂、分离材料及粘合带 |
JP2011256319A (ja) * | 2010-06-11 | 2011-12-22 | Nitto Denko Corp | 粘着シート |
JP6703429B2 (ja) * | 2016-03-28 | 2020-06-03 | マクセルホールディングス株式会社 | 粘着テープ |
US11390709B2 (en) * | 2017-09-29 | 2022-07-19 | Zeon Corporation | Liquid copolymer formed by ring-opening copolymerization of cyclopentene, crosslinkable composition, and crosslinked rubber object |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994016885A1 (en) * | 1993-01-25 | 1994-08-04 | Avery Dennisson Corporation | Release films formed by coextrusion |
JP2000108271A (ja) * | 1998-09-30 | 2000-04-18 | Nippon Polyolefin Kk | 剥離基体、その製造方法および剥離性積層体 |
JP2001246697A (ja) * | 2000-03-03 | 2001-09-11 | Lintec Corp | 離型シートおよび粘着体 |
JP2002309227A (ja) * | 2001-04-16 | 2002-10-23 | Nitto Denko Corp | 離型剤、剥離ライナーおよび粘着シート |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4789699A (en) * | 1986-10-15 | 1988-12-06 | Kimberly-Clark Corporation | Ambient temperature bondable elastomeric nonwoven web |
JP3344611B2 (ja) * | 1995-09-12 | 2002-11-11 | 日立金属株式会社 | 静電荷像現像用現像剤 |
-
2003
- 2003-11-25 CN CNA2003801042321A patent/CN1717445A/zh active Pending
- 2003-11-25 WO PCT/JP2003/014999 patent/WO2004048464A1/ja not_active Application Discontinuation
- 2003-11-25 EP EP03775872A patent/EP1566407A4/en not_active Withdrawn
-
2005
- 2005-05-25 US US11/136,718 patent/US20050271851A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994016885A1 (en) * | 1993-01-25 | 1994-08-04 | Avery Dennisson Corporation | Release films formed by coextrusion |
JP2000108271A (ja) * | 1998-09-30 | 2000-04-18 | Nippon Polyolefin Kk | 剥離基体、その製造方法および剥離性積層体 |
JP2001246697A (ja) * | 2000-03-03 | 2001-09-11 | Lintec Corp | 離型シートおよび粘着体 |
JP2002309227A (ja) * | 2001-04-16 | 2002-10-23 | Nitto Denko Corp | 離型剤、剥離ライナーおよび粘着シート |
Non-Patent Citations (1)
Title |
---|
See also references of EP1566407A4 * |
Also Published As
Publication number | Publication date |
---|---|
CN1717445A (zh) | 2006-01-04 |
US20050271851A1 (en) | 2005-12-08 |
EP1566407A4 (en) | 2006-08-23 |
EP1566407A1 (en) | 2005-08-24 |
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