JP2004190011A - Release agent, layered pressure-sensitive adhesive product, and layered pressure-sensitive adhesive tape - Google Patents
Release agent, layered pressure-sensitive adhesive product, and layered pressure-sensitive adhesive tape Download PDFInfo
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- JP2004190011A JP2004190011A JP2003384711A JP2003384711A JP2004190011A JP 2004190011 A JP2004190011 A JP 2004190011A JP 2003384711 A JP2003384711 A JP 2003384711A JP 2003384711 A JP2003384711 A JP 2003384711A JP 2004190011 A JP2004190011 A JP 2004190011A
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- release agent
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- polyolefin
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- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 81
- 239000004820 Pressure-sensitive adhesive Substances 0.000 title claims abstract description 35
- 239000010410 layer Substances 0.000 claims abstract description 113
- 229920000098 polyolefin Polymers 0.000 claims abstract description 83
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 38
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 38
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 34
- 125000000524 functional group Chemical group 0.000 claims abstract description 25
- 239000012790 adhesive layer Substances 0.000 claims description 53
- 239000000853 adhesive Substances 0.000 claims description 36
- 230000001070 adhesive effect Effects 0.000 claims description 36
- 239000000758 substrate Substances 0.000 claims description 29
- -1 polypropylene Polymers 0.000 claims description 17
- 229920001577 copolymer Polymers 0.000 claims description 15
- 125000004432 carbon atom Chemical group C* 0.000 claims description 12
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 10
- 239000005977 Ethylene Substances 0.000 claims description 10
- 239000012968 metallocene catalyst Substances 0.000 claims description 7
- 239000000155 melt Substances 0.000 claims description 6
- 239000004743 Polypropylene Substances 0.000 claims description 5
- 229920001155 polypropylene Polymers 0.000 claims description 5
- 125000001931 aliphatic group Chemical group 0.000 claims description 4
- 239000004711 α-olefin Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 229920005606 polypropylene copolymer Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 27
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 15
- 239000003431 cross linking reagent Substances 0.000 description 11
- 230000007423 decrease Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 7
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- 239000000123 paper Substances 0.000 description 6
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- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 5
- 229920005604 random copolymer Polymers 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- KWKAKUADMBZCLK-UHFFFAOYSA-N 1-octene Chemical compound CCCCCCC=C KWKAKUADMBZCLK-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 4
- ALSOCDGAZNNNME-UHFFFAOYSA-N ethene;hex-1-ene Chemical compound C=C.CCCCC=C ALSOCDGAZNNNME-UHFFFAOYSA-N 0.000 description 4
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- 238000000034 method Methods 0.000 description 4
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- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 239000012948 isocyanate Substances 0.000 description 3
- 150000002513 isocyanates Chemical class 0.000 description 3
- 238000004898 kneading Methods 0.000 description 3
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 3
- 150000002978 peroxides Chemical class 0.000 description 3
- 229920006267 polyester film Polymers 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- ZGEGCLOFRBLKSE-UHFFFAOYSA-N 1-Heptene Chemical compound CCCCCC=C ZGEGCLOFRBLKSE-UHFFFAOYSA-N 0.000 description 2
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 2
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 2
- GQEZCXVZFLOKMC-UHFFFAOYSA-N 1-hexadecene Chemical compound CCCCCCCCCCCCCCC=C GQEZCXVZFLOKMC-UHFFFAOYSA-N 0.000 description 2
- HFDVRLIODXPAHB-UHFFFAOYSA-N 1-tetradecene Chemical compound CCCCCCCCCCCCC=C HFDVRLIODXPAHB-UHFFFAOYSA-N 0.000 description 2
- WSSSPWUEQFSQQG-UHFFFAOYSA-N 4-methyl-1-pentene Chemical compound CC(C)CC=C WSSSPWUEQFSQQG-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- LPIQUOYDBNQMRZ-UHFFFAOYSA-N cyclopentene Chemical compound C1CC=CC1 LPIQUOYDBNQMRZ-UHFFFAOYSA-N 0.000 description 2
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000006082 mold release agent Substances 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N n-Octanol Natural products CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- VAMFXQBUQXONLZ-UHFFFAOYSA-N n-alpha-eicosene Natural products CCCCCCCCCCCCCCCCCCC=C VAMFXQBUQXONLZ-UHFFFAOYSA-N 0.000 description 2
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 2
- CCCMONHAUSKTEQ-UHFFFAOYSA-N octadec-1-ene Chemical compound CCCCCCCCCCCCCCCCC=C CCCMONHAUSKTEQ-UHFFFAOYSA-N 0.000 description 2
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- OJOWICOBYCXEKR-KRXBUXKQSA-N (5e)-5-ethylidenebicyclo[2.2.1]hept-2-ene Chemical compound C1C2C(=C/C)/CC1C=C2 OJOWICOBYCXEKR-KRXBUXKQSA-N 0.000 description 1
- 229940106006 1-eicosene Drugs 0.000 description 1
- FIKTURVKRGQNQD-UHFFFAOYSA-N 1-eicosene Natural products CCCCCCCCCCCCCCCCCC=CC(O)=O FIKTURVKRGQNQD-UHFFFAOYSA-N 0.000 description 1
- 238000005160 1H NMR spectroscopy Methods 0.000 description 1
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 description 1
- LDTAOIUHUHHCMU-UHFFFAOYSA-N 3-methylpent-1-ene Chemical compound CCC(C)C=C LDTAOIUHUHHCMU-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- AGKZDUBMFACJPR-UHFFFAOYSA-L C12=CC=CC=C2C2=CC=CC=C2C1[Zr](Cl)(Cl)(=C(C)C)C1C=CC=C1 Chemical compound C12=CC=CC=C2C2=CC=CC=C2C1[Zr](Cl)(Cl)(=C(C)C)C1C=CC=C1 AGKZDUBMFACJPR-UHFFFAOYSA-L 0.000 description 1
- 239000004971 Cross linker Substances 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 229920002873 Polyethylenimine Polymers 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- NWBSMOHZFZYBLB-UHFFFAOYSA-L [Cl-].[Cl-].C1=CC2=CC=CC=C2C1[Zr+2](=C(C)C)C1C2=CC=CC=C2C=C1 Chemical compound [Cl-].[Cl-].C1=CC2=CC=CC=C2C1[Zr+2](=C(C)C)C1C2=CC=CC=C2C=C1 NWBSMOHZFZYBLB-UHFFFAOYSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 125000004018 acid anhydride group Chemical group 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 239000002981 blocking agent Substances 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- URYYVOIYTNXXBN-UPHRSURJSA-N cyclooctene Chemical compound C1CCC\C=C/CC1 URYYVOIYTNXXBN-UPHRSURJSA-N 0.000 description 1
- 239000004913 cyclooctene Substances 0.000 description 1
- 239000012933 diacyl peroxide Substances 0.000 description 1
- 229920003244 diene elastomer Polymers 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
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- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
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- 230000009969 flowable effect Effects 0.000 description 1
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- 239000001257 hydrogen Substances 0.000 description 1
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- 125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
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- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
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- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
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- 229920000193 polymethacrylate Polymers 0.000 description 1
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Abstract
Description
本発明は、離型剤に関し、詳しくは、粘着層と接する離型層を形成するための離型剤に関する。また、本発明は、粘着性積層体および粘着性積層テープに関する。 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 laminate tape.
粘着テープの粘着面（本明細書において粘着とは接着なども含む広義の意味である）を保護するのに離型剤を使用することは広く行われている。離型性能の点において最も優れている離型剤の一つは、シリコーン系の離型剤である。しかし、シリコーン系離型剤には微量のシロキサン系ガスが含まれており、用途によってはこのシロキサン系ガスが腐蝕その他の重大な障害をもたらすことがある。シリコーン系離型剤の代りとしてフッ素樹脂系の離型剤も提案されているが、このものの離型性能は必ずしも満足すべきものではない。
従って、本発明は、シリコーン系離型剤やフッ素樹脂系離型剤に代る新しい離型剤を提供しようとするものである。 Accordingly, an object of the present invention is to provide a new release agent that replaces a silicone release agent or a fluororesin release agent.
すなわち、本発明の要旨は、官能基を有していてもよい重量平均分子量が１×１０４以上のポリオレフィン（Ａ）とＪＩＳ Ｋ−７１１７に従って測定した２３℃における粘度が１〜１×１０４センチポイズである炭化水素（Ｂ）とを含有し、ポリオレフィン（Ａ）：炭化水素（Ｂ）の重量比が９７：３〜６０：４０であることを特徴とする、粘着層と接する離型層を形成するための離型剤に存する。 That is, 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. of 1 to 1 × 10 4 measured according to JIS K-7117. A centrifugal hydrocarbon (B), wherein the weight ratio of polyolefin (A): hydrocarbon (B) is 97: 3 to 60:40. Being in the release agent to form.
本発明の他の要旨は、粘着層とこれに接触する離型層とを有し且つ離型層が前記の離型剤から成ることを特徴とする粘着性積層体に存する。 Another aspect of the present invention resides in a pressure-sensitive adhesive laminate having a pressure-sensitive adhesive layer and a release layer in contact with the pressure-sensitive adhesive layer, wherein the release layer comprises the above-mentioned release agent.
本発明の他の要旨は、シート状基材の少なくとも一面に順次に粘着層および離型層が設けられている粘着性積層テープであって、離型層が上記の離型剤から成ることを特徴とする粘着性積層テープに存する。 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-described release agent. The characteristic adhesive laminating tape exists.
また、本発明の更に他の要旨は、２枚のシート状基材の間に粘着層および離型層が設けられている粘着性積層テープであって、離型層が上記の離型剤から成ることを特徴とする粘着性積層テープに存する。 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 from the release agent. The present invention resides in an adhesive laminated tape.
本発明によれば、シリコーン系離型剤やフッ素樹脂系離型剤に代る新しい離型剤が提供される。 ADVANTAGE OF THE INVENTION According to this invention, the new release agent which replaces a silicone type release agent and a fluororesin type release agent is provided.
以下、本発明を詳細に説明する。先ず、本発明の離型剤について説明する。本発明の離型剤は、粘着層と接する離型層を形成するための離型剤であって、必須成分として、官能基を有していてもよい重量平均分子量が１×１０４以上のポリオレフィン（Ａ）とＪＩＳ Ｋ−７１１７に従って測定した２３℃における粘度が１〜１×１０４センチポイズである炭化水素（Ｂ）とを含有する。 Hereinafter, the present invention will be described in detail. First, the release agent of the present invention will be described. 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. It contains a polyolefin (A) and a hydrocarbon (B) having a viscosity of 1 to 1 × 10 4 centipoise at 23 ° C. measured according to JIS K-7117.
本発明において、ポリオレフィン（Ａ）として、種々のオレフィンの単独重合体、共重合体、オレフィンと官能基を有するモノマーとの共重合体などを使用することが出来る。その具体例としては、エチレン、プロピレン、１−ブテン、１−ヘキセン、１−オクテン等のα−オレフィンの（共）重合体などが挙げられる。また、ノルボルネン、シクロペンテン、シクロオクテン等の脂環式オレフィンの開環重合体を使用することも出来る。更には、ポリイソプレンに代表されるリビング重合で得られたジエン系ゴム、その水素添加物の他、スチレン・ブタジエン共重合体、スチレン・イソプレン共重合体の核水素添加物などを使用することも出来る。 In the present invention, as the polyolefin (A), homopolymers and copolymers of various olefins, copolymers of olefins and monomers having a functional group, and the like can be used. Specific examples thereof include α-olefin (co) polymers such as ethylene, propylene, 1-butene, 1-hexene, and 1-octene. Further, ring-opened polymers of alicyclic olefins such as norbornene, cyclopentene, and cyclooctene can also be used. Further, in addition to diene rubbers obtained by living polymerization represented by polyisoprene and hydrogenated products thereof, styrene-butadiene copolymers, styrene-isoprene copolymer nuclear hydrogenated products, and the like can also be used. I can do it.
ポリオレフィン（Ａ）の好ましい一例は、ポリエチレン又はエチレンと他のオレフィンとの共重合体である。共重合体の具体例としては、プロピレン、１−ブテン、１−ペンテン、３−メチル−１−ブテン、１−ヘキセン、４−メチル−１−ペンテン、３−メチル−１−ペンテン、１−ヘプテン、１−オクテン、１−デセン、１−ドデセン、１−テトラデセン、１−ヘキサデセン、１−オクタデセン、１−エイコセン等の、炭素数３〜２０程度のα−オレフィンとエチレンとの共重合体が挙げられる。また、エチレンとノルボルネンやエチリデンノルボルネンとの共重合体も使用することが出来る。これらの共重合体のエチレン含量は、通常３０モル％以上、好ましくは５０モル％以上、更に好ましくは８０モル％以上である。エチレン含量が少なすぎると、離型剤の耐熱性が低下する傾向があり、好ましくない。エチレン含量の上限は通常１００モル％である。 One preferred example of the polyolefin (A) is polyethylene or a copolymer of ethylene and another 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-heptene. , 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene, 1-eicosene, and other copolymers of an α-olefin having about 3 to 20 carbon atoms and ethylene. Can be Further, a copolymer of ethylene and norbornene or ethylidene norbornene 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%.
ポリオレフィン（Ａ）の好ましい他の一例は、ポリプロピレン又はプロピレンと上記した様なエチレンないしは他のオレフィンとの共重合体である。ポリプロピレンは、アイソタクチック、シンジオタクチック、アタクチックの何れであってもよく、また、共重合体は、ランダム共重合体でもブロック共重合体の何れであってもよい。プロピレンと他のオレフィンとの共重合体におけるプロピレン含量は、通常５０モル％以上、好ましくは７０モル％以上である。プロピレン含量が少なすぎると、離型剤の耐熱性が低下する傾向があり、好ましくない。プロピレン含量の上限は通常１００モル％である。 Another preferred example of the polyolefin (A) is a copolymer of polypropylene or propylene with ethylene or another olefin as described above. The 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 another olefin 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 preferable. The upper limit of the propylene content is usually 100 mol%.
ポリオレフィン（Ａ）の製造には、チーグラー系触媒、メタロセン系触媒など種々の異った触媒系が使用されている。本発明で使用するポリオレフィンは、メタロセン系触媒を使用して製造されたものが好ましい。メタロセン系触媒は、分子量分布が狭く、かつ低分子量成分の少ないポリオレフィンを与えるからである。また共重合を均一に行わせることが出来るため、コモノマー含量が平均組成と著しく異なる成分の生成も抑制される。従って、メタロセン系触媒を使用して製造されたポリオレフィンを使用した離型剤は、べたつきが少なく、また、架橋の際の効果的なゲル化が可能であり、架橋により耐薬品性の高めることが出来る。 Various different catalyst systems such as Ziegler catalysts and metallocene catalysts are used for the production of polyolefin (A). The polyolefin used in the present invention is preferably produced using a metallocene catalyst. This is because the metallocene-based catalyst gives a polyolefin having a narrow molecular weight distribution and a small amount of low molecular weight components. Further, since the copolymerization can be carried out uniformly, the formation of components whose comonomer content is significantly different from the average composition is also suppressed. Therefore, a release agent using a polyolefin produced using a metallocene-based catalyst has a low stickiness, can effectively gel at the time of crosslinking, and can increase chemical resistance by crosslinking. I can do it.
本発明で使用するに好適なポリオレフィンを与えるメタロセン触媒としては、例えば、ｒａｃ−イソプロピリデンビス（１−インデニル）ジルコニウムジクロライド、ｒａｃ−ジメチルシリルビス−１−（２−メチルインデニル）ジルコニウムジクロライド、ｒａｃ−ジメチルシリルビス−１−（２−メチル−４−フェニルインデニル）ジルコニウムジクロライド、ｒａｃ−ジメチルシリルビス−１−（２−メチル−４，５−ベンゾインデニル）ジルコニウムジクロライド、イソプロピリデン−９−フルオレニルシクロペンタジエニルジルコニウムジクロライド等が挙げられる。ポリオレフィンの製造は、溶液重合、気相重合、スラリー重合など、公知の任意の重合方法によることが出来る。 Metallocene catalysts that provide polyolefins suitable for use in the present invention include, for example, rac-isopropylidenebis (1-indenyl) zirconium dichloride, rac-dimethylsilylbis-1- (2-methylindenyl) zirconium dichloride, rac -Dimethylsilylbis-1- (2-methyl-4-phenylindenyl) zirconium dichloride, rac-dimethylsilylbis-1- (2-methyl-4,5-benzoindenyl) zirconium dichloride, isopropylidene-9- Fluorenylcyclopentadienyl zirconium dichloride and the like. The polyolefin can be produced by any known polymerization method such as solution polymerization, gas phase polymerization, and slurry polymerization.
本発明においては、ポリオレフィン（Ａ）として、重量平均分子量が１×１０４以上のものを使用する。重量平均分子量がこれよりも小さいと、離型剤の機械的強度が小さくなり、この離型剤からなる離型層を粘着層から剥離する際に剥離が良好にいかなかったり、離型層が部分的に粘着層に残留したりすることがある。ポリオレフィンの重量平均分子量は３×１０４以上であるのが好ましい。また、その上限は通常１００×１０４である。 In the present invention, a polyolefin (A) having a weight average molecular weight of 1 × 10 4 or more is used. If the weight average molecular weight is smaller than this, the mechanical strength of the release agent becomes small, and when the release layer made of this release agent is released from the adhesive layer, the release does not go well, or the release layer 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 × 10 4 .
ポリオレフィン（Ａ）の密度は、通常０．８６〜０．９０ｇ／ｃｃ、好ましくは０．８７〜０．８９ｇ／ｃｃから選択される。ポリオレフィン（Ａ）の密度が低すぎると、非晶部の比率が増加して低分子量炭化水素の溶解量が増加するが、逆に結晶部の比率の低下による離型層の機械的強度や耐熱性の低下が起り、好ましくない。一方、ポリオレフィン（Ａ）の密度が高すぎると、非晶部の比率が低下して低分子量炭化水素の溶解量が減少し、得られる離型剤の離型性が低下したり、低分子量炭化水素がブリードアウトして粘着層に移行し、粘着層の粘着性を阻害したりする傾向があるので好ましくない。 The density of the polyolefin (A) is generally selected from 0.86 to 0.90 g / cc, preferably from 0.87 to 0.89 g / cc. If the density of the polyolefin (A) is too low, the proportion of the amorphous part increases and the amount of dissolved low molecular weight hydrocarbons increases, but on the contrary, the mechanical strength and heat resistance of the release layer due to the decrease in the proportion of the crystalline part are reduced. It is not preferable because the property is deteriorated. On the other hand, if the density of the polyolefin (A) is too high, the ratio of the amorphous portion is reduced, and 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.
ポリオレフィン（Ａ）のメルトインデックス（２３０℃、２．１６ｋｇｆ荷重で測定した値）は、通常０．５〜２０ｇ／１０分の範囲から選択される。この範囲外のメルトインデックスのポリオレフィンを使用した離型剤は、押出し成形により離型シートとするのが困難な傾向にある。 The melt index of the polyolefin (A) (value measured at 230 ° C. under a load of 2.16 kgf) is usually selected from the range of 0.5 to 20 g / 10 minutes. A release agent using a polyolefin having a melt index outside this range tends to be difficult to form a release sheet by extrusion.
また、ポリオレフィン（Ａ）に官能基を付与したり、架橋したりしてもよい。官能基を付与したポリオレフィンを使用すると、基材密着性に優れた離型剤を得ることが出来る。付与する官能基としては、エポキシ基、酸無水物基、カルボキシル基、ヒドロキシル基、アミノ基、イソシアネート基、トリメトキシシリル基などの反応性を有する官能基、ビニル基、イソプロペニル基、（メタ）アクリレート基、アリル基などの不飽和結合を有する基などが挙げられる。これらの官能基の付与は、ポリオレフィンに官能基を有するモノマーをパーオキサイドの存在下で付加反応させる等、常法に従って行えばよい。パーオキサイドとしては、ケトンパーオキサイド、ハイドロパーオキサイド、ジアシルパーオキサイド等常用のものを使用すればよい。官能基が付与されたポリオレフィン中の官能基の量は、通常１０モル％以下、好ましくは５モル％以下である。官能基が多過ぎると、このポリオレフィンを使用した離型剤の離型性が損なわれる恐れがある。しかしながら、官能基を付与する場合の官能基の量の下限は、その効果の観点から、通常０．０５モル％である。 Further, a functional group may be added to the polyolefin (A) or crosslinked. When a polyolefin having a functional group is used, a release agent having excellent substrate adhesion can be obtained. Examples of the functional group to be provided 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, and a trimethoxysilyl group, a vinyl group, an isopropenyl group, and a (meth) group. Examples include groups having an unsaturated bond such as an acrylate group and an allyl group. The addition of these functional groups may be performed according to a conventional method, for example, by subjecting a polyolefin to a polyolefin monomer in the presence of a peroxide. As the peroxide, a commonly used peroxide such as ketone peroxide, hydroperoxide, diacyl peroxide may be used. The amount of the functional group in the functionalized polyolefin 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.
本発明で使用する炭化水素（Ｂ）は、ＪＩＳ Ｋ−７１１７に従って測定した２３℃における粘度が１〜１×１０４センチポイズのものである。粘度が１センチポイズ未満の液状の炭化水素を使用した離型剤は、べたついたり、粘着層から離型層が脱落したりするという問題がある。また、粘度が１×１０４センチポイズを超えるもの（非流動性のもの）は、一般に結晶性を有するものを多く含み、この様な炭化水素を使用した離型剤は弾性率が大きく、離型性が低下し易い。 The hydrocarbon (B) used in the present invention has a viscosity of 1 to 1 × 10 4 centipoise at 23 ° C. measured according to JIS K-7117. A release agent using a liquid hydrocarbon having a viscosity of less than 1 centipoise has a problem that the release layer is sticky or the release layer falls off the adhesive layer. In addition, those having a viscosity exceeding 1 × 10 4 centipoise (non-flowable) generally contain a lot of those having crystallinity, and a release agent using such a hydrocarbon has a large elastic modulus, Properties are likely to decrease.
上記の粘度測定は、ＪＩＳ Ｋ−７１１７に従い、Ｂ型回転粘度計を使用し次の様に行う。すなわち、東京計器社製のＢ型回転粘度計に２号ローターをセットし、試料温度２３℃、ローター回転数６０ｒｐｍの条件で３回測定し、その平均値を採用する。 The above viscosity measurement is performed as follows using a B-type rotational viscometer according to JIS K-7117. That is, the No. 2 rotor is set on a B-type rotary viscometer manufactured by Tokyo Keiki Co., Ltd., and the measurement is performed three times at a sample temperature of 23 ° C. and a rotor rotation speed of 60 rpm, and the average value is adopted.
また、本発明で使用する炭化水素（Ｂ）は、重量平均分子量が３００〜３０００のものが好ましい。重量平均分子量が３００未満の低分子量炭化水素は、一般に揮発性成分が多く、この様な低分子量炭化水素を使用した離型剤は、低分子量炭化水素のブリードアウトやべたつきを生じ易い。一方、重量平均分子量が３０００よりも大きい高分子量炭化水素を使用した離型剤は、一般に弾性率が大きく、離型性が低下し易い。炭化水素（Ｂ）の重量平均分子量は好ましくは３００〜２０００である。 The hydrocarbon (B) used in the present invention preferably has a weight average molecular weight of 300 to 3000. 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 easily causes bleed-out or stickiness of low-molecular-weight hydrocarbons. On the other hand, a release agent using a high-molecular-weight hydrocarbon having a weight-average molecular weight of more than 3000 generally has a large elastic modulus and is likely to have a reduced releasability. The weight average molecular weight of the hydrocarbon (B) is preferably from 300 to 2,000.
炭化水素（Ｂ）としては、通常、非環式脂肪族鎖構造および飽和脂肪環構造の何れかを有するものが使用されるが、上記構造の双方を有するものが好ましい。そして、ポリオレフィン（Ａ）との相溶性の観点から、全炭素原子数に対する非環式脂肪族鎖構造の炭素原子数の比率は、通常５０％以上、好ましくは６５％比率とされる。なお、炭化水素（Ｂ）は、芳香環構造を有していてもよいが、その炭素数の比率は、全炭素原子数に対する比率として、通常３０％以下、好ましくは１０％以下とされる。炭化水素（Ｂ）の非環式脂肪族鎖構造、飽和脂肪族環構造および芳香環構造の炭素原子の比率は、ＡＳＴＭＤ−３２８３に従って測定できる。炭化水素（Ｂ）としては、石油留分のうち、加工油、プロセスオイル等の名称で市販されているもの、例えば、出光興産社から「ダイアナプロセスオイル」として市販されているものの中から適宜選択して使用することが出来る。 As 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. Then, from the viewpoint of compatibility with the polyolefin (A), the ratio of the number of carbon atoms of the acyclic aliphatic chain structure to the total number of carbon atoms is usually 50% or more, preferably 65%. The hydrocarbon (B) may have an aromatic ring structure, and the ratio of the number of carbon atoms is usually 30% or less, preferably 10% or less, as a ratio to the total number of carbon atoms. The ratio of carbon atoms of 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. As the hydrocarbon (B), among the petroleum fractions, those which are commercially available under the name of processing oil, process oil, etc., for example, appropriately selected from those marketed as "Diana Process Oil" by Idemitsu Kosan Co., Ltd. Can be used.
本発明の離型剤は、前述のポリオレフィン（Ａ）と炭化水素（Ｂ）とを必須成分として含有するが、更に他の付加的成分を含有していてもよい。付加的成分としては、例えば、架橋剤、すなわち、ポリオレフィンの官能基と反応する官能基を複数個有する化合物が挙げられる。架橋剤の使用量は、ポリオレフィンの官能基／架橋剤の官能基のモル比として、通常０．１〜１０の範囲から選択される。官能基のモル比がこの範囲を外れると、未反応の官能基の残存数が多くなり、一般に離型性が低下する。他の付加的成分としては、アンチブロック剤、抗酸化剤、顔料、紫外線吸収剤、充填剤、老化防止剤などが挙げられる。 The release agent of the present invention contains the above-mentioned polyolefin (A) and hydrocarbon (B) as essential components, but may further contain other additional components. Additional components include, for example, crosslinkers, ie, compounds having a plurality of functional groups that react with the functional groups of the polyolefin. The amount of the crosslinking agent used is usually selected from the range of 0.1 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 remains and the releasability generally decreases. Other additional components include antiblocking agents, antioxidants, pigments, UV absorbers, fillers, antioxidants, and the like.
本発明の離型剤は、前述の各成分を配合し、溶媒に溶解したり溶融混練することにより製造できる。ポリオレフィン（Ａ）：炭化水素（Ｂ）の重量比は９７：３〜６０：４０の範囲から選択される。一般に、炭化水素（Ｂ）の比率が小さいと離型性が低下し、逆に、この比率が大きいと炭化水素（Ｂ）のブリードアウトが多くなる。上記の比率の好ましい範囲は８０：２０〜４０：６０である。 The release agent of the present invention can be produced by blending the above-mentioned components, dissolving in a solvent, or melt-kneading. The weight ratio of polyolefin (A): hydrocarbon (B) is selected from the range of 97: 3 to 60:40. In general, when the ratio of the hydrocarbon (B) is small, the releasability decreases, and when the ratio is large, the bleed out of the hydrocarbon (B) increases. The preferred range of the above ratio is 80:20 to 40:60.
次に、本発明の粘着積層体について説明する。本発明の粘着積層体は、粘着層とこれに接触する離型層とを有し且つ離型層が前記の離型剤から成ることを特徴とする。斯かる粘着積層体（層構成：粘着層／離型層）は、次の粘着積層テープの製造に使用される。また、離型層／粘着層／離型層の層構成とした場合は２個の対象物同士を粘着する両面粘着テープとして使用することが出来る。粘着積層体を構成する粘着層については、粘着積層テープの製造において説明する。 Next, the pressure-sensitive adhesive laminate of the present invention will be described. 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. In the case of a layer structure of a release layer / adhesive layer / release layer, it can be used as a double-sided adhesive tape for adhering two objects. The pressure-sensitive adhesive layer constituting the pressure-sensitive adhesive laminate will be described in the production of the pressure-sensitive adhesive laminated tape.
次に、本発明の粘着性積層テープについて説明する。本発明の粘着性積層テープは基本的な２つの態様を含む。 Next, the adhesive laminated tape of the present invention will be described. The adhesive laminated tape of the present invention includes two basic embodiments.
本発明の粘着性積層テープの基本的態様の一つは、シート状基材の少なくとも一面に順次に粘着層および離型層が設けられている粘着性積層テープである。すなわち、層構成は、基材／粘着層／離型層となる。使用に際しては、離型層を剥離して粘着層面を露出させ、これを対象物に粘着させればよい。その結果、対象物表面／粘着層／離型層の層構成が得られる。 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 release 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. In use, the release layer may be peeled off to expose the adhesive layer surface, and this may be adhered to an object. As a result, a layer configuration of the object surface / adhesive layer / release layer is obtained.
本発明の粘着性積層テープの基本的態様の他の一つは、２枚のシート状基材の間に粘着層および離型層が設けられている粘着性積層テープである。層構成は、基材／粘着層／離型層／基材となる。使用に際しては、基材および離型層を剥離して粘着層面を露出させ、これを対象物に粘着させればよい。その結果、対象物表面／粘着層／基材の層構成が得られる。 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: substrate / adhesive layer / release layer / substrate. In use, the base material and the release layer may be peeled off to expose the surface of the adhesive layer, and this may be adhered to an object. As a result, a layer configuration of the object surface / adhesive layer / substrate is obtained.
上記の基本的態様を使用した他の態様の粘着性積層テープとしては次の様な層構成のものが挙げられる。離型層／粘着層／基材／粘着層／離型層の層構成を有する粘着性積層テープ。使用に際しては、両側の離型層を剥離し、両面粘着性積層テープとして使用する。 As another embodiment of the adhesive laminated tape using the above-mentioned basic embodiment, the following laminated constitution is exemplified. An adhesive laminated tape having a layer structure of release layer / adhesive layer / substrate / adhesive layer / release layer. In use, the release layers on both sides are peeled off and used as a double-sided adhesive laminated tape.
また、本発明においては、基材の各面に離型層と粘着層とが設けられたシート（層構成：離型層／基材／粘着層）をロール状に巻回し（離型層／基材／粘着層・離型層／基材／粘着層・・）、使用の際は、粘着層・離型層から剥離させてシートを引き出し。露出した粘着層面を対象物に粘着させることも出来る。 Further, in the present invention, a sheet (layer structure: release layer / substrate / adhesive layer) provided with a release layer and an adhesive layer on each surface of the substrate is wound into a roll shape (release layer / Base material / adhesive layer / release layer / substrate / adhesive layer ...), in use, peel off the adhesive layer / release layer and draw out the sheet. The exposed surface of the adhesive layer can be adhered to the object.
上記の離型層側および粘着層側に使用されるシート状基材としては、常用のもの、例えば、ポリエチレンテレフタレート、ポリブチレンテレフタレート等のポリエステル、ポリプロピレン、ポリエチレン、ポリメチルペンテン等のポリオレフィン、ポリカーボネート等の樹脂から成るフィルム、グラシン紙、上質紙、コート紙、含浸紙、合成紙などの紙、アルミニウム、ステンレススチール等の金属箔などを適宜使用すればよい。基材の厚さは、通常１０〜１００μｍ、好ましくは２５〜５０μｍである。なお、基材には、粘着層や離型層との接着性を向上させるため、コロナ処理、プラズマ処理、フレームプラズマ処理などを施したり、プライマー層などを設けてもよい。プライマー層としては、ポリエチレン、ポリプロピレン、スチレン系共重合体、ポリエステル、ポリウレタン、ポリビニルアルコール、ポリエチレンイミン、ポリアクリレート、ポリメタクリレート、これらの変性物などの高分子材料（所謂アンカーコート剤）を使用することが出来る。 As the sheet-like base material used on the release layer side and the adhesive layer side, conventional ones, for example, polyesters such as polyethylene terephthalate and polybutylene terephthalate, polypropylene, polyethylene, polyolefins such as polymethylpentene, polycarbonates and the like A film made of the above resin, glassine paper, woodfree paper, coated paper, impregnated paper, paper such as synthetic paper, metal foil such as aluminum or stainless steel, etc. may be used as appropriate. The thickness of the substrate is usually 10 to 100 μm, preferably 25 to 50 μm. The substrate may be subjected to a corona treatment, a plasma treatment, a flame plasma treatment, or the like, or a primer layer or the like, in order to improve the adhesiveness with the adhesive layer and the release layer. As the primer layer, use of a polymer material (a so-called anchor coating agent) such as polyethylene, polypropylene, styrene-based copolymer, polyester, polyurethane, polyvinyl alcohol, polyethyleneimine, polyacrylate, polymethacrylate, or a modified product thereof. Can be done.
粘着テープの製造に際しての粘着層および離型層の形成は常法により行えばよい。離型層は、通常、シート状基材上に離型剤溶液を塗布したり、押出機からシート状基材上に離型剤を溶融押出ししてラミネートしたり、基材原料および離型剤を押出機から共押出しすることにより形成される。 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 on a sheet-like substrate, laminating and releasing a release agent onto a sheet-like substrate from an extruder, Is extruded from an extruder.
粘着剤としては、アクリル系、ゴム系、ポリウレタン系、シリコン系など、一般に粘着剤と称されているものが主に使用されるが、他の粘着剤を使用することも出来る。粘着層は、シート状基材またはシート状基材上に設けられた離型層上に粘着剤溶液を塗布したり、他の基材に塗工した粘着層を転写塗工したり、基材原料、離型剤および粘着剤を押出機で共押出しすることにより形成することが出来る。 As the 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 pressure-sensitive adhesive layer is applied to the sheet-like base material or the release layer provided on the sheet-like base material by applying the pressure-sensitive adhesive solution, or by transfer-coating the pressure-sensitive adhesive layer applied to another base material, It can be formed by co-extruding a raw material, a release agent and an adhesive with an extruder.
積層体の製造に際しては、基材層と離型層とを共押出しする等、複数の層を同時に溶融押出成形するのが生産性の点で優れている。溶融押出法により離型層を形成する場合、離型剤のメルトインデックス（２３０℃、２．１６ｋｇｆ荷重で測定した値）は、通常０．５〜４０ｇ／１０分、好ましくは１〜２０ｇ／１０分の範囲から選択される。メルトインデックスが上記の値より大きくても小さくても押出し成形性は低下する。 In the production of a laminate, simultaneous extrusion of a plurality of layers, such as co-extrusion of a base material layer and a release layer, is excellent in terms of productivity. When the release layer is formed by a melt extrusion method, the release index of the release agent (value measured at 230 ° C. under a load of 2.16 kgf) is usually 0.5 to 40 g / 10 min, preferably 1 to 20 g / 10 min. Selected from a range of minutes. Extrusion moldability is reduced if the melt index is larger or smaller than the above value.
基材と離型層、更には、基材と離型層と粘着層を共押出成形した場合には、引続いき、一軸または二軸延伸し、厚さを薄くし且つ強度を向上させることも出来る。延伸倍率は通常２〜１０倍である。離型層の厚さは、通常０．５〜１５０μｍ、好ましくは０．５〜１０μｍ、更に好ましくは０．５〜５μｍである。離型層の厚さが薄すぎると、厚さの均一性を確保するのが困難であり、逆に厚すぎると積層体の弾性率が低下し、好ましくない。 When the base material and the release layer, and further, when the base material, the release layer and the adhesive layer are co-extruded, 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 0.5 to 150 μm, preferably 0.5 to 10 μm, more preferably 0.5 to 5 μm. 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.
以下、実施により本発明を更に詳細に説明するが、本発明は、その要旨を超えない限り、以下の実施例に限定されるものではない。実施例における物性の測定法は下記によった。 Hereinafter, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to the following examples unless it exceeds the gist of the present invention. The methods for measuring physical properties in the examples were as follows.
（１）離型性の評価：
先ず、粘着性積層テープを調製した後、２５℃、５０ＲＨで７２時間養生して安定化する。次いで、粘着性積層テープを幅２５ｍｍ、長さ１５０ｍｍに切断し、粘着層と隣接する基材の背面をステンレス板に固定し、剥離試験器を使用し、２５℃、５０ＲＨの雰囲気下、３００ｍｍ／ｍｉｎの引っ張り速度で離型層と粘着層の界面を１８０°剥離させる際の力（剥離力）を測定する。結果は５回の測定の平均値で表示した。離型力が小さいほど粘着層との剥離が容易である。
(1) Releasability evaluation:
First, after preparing an adhesive laminated tape, it is cured at 25 ° C. and 50 RH for 72 hours to be stabilized. Next, the adhesive laminated tape is cut into a width of 25 mm and a length of 150 mm, the back surface of the base material adjacent to the adhesive layer is fixed to a stainless steel plate, and a peel tester is used at 25 ° C. and 50 RH in an atmosphere of 300 mm / A force (peeling force) when the interface between the release layer and the adhesive layer is peeled at 180 ° at a pulling speed of min is measured. The results were expressed as the average of five measurements. The smaller the releasing force, the easier the peeling from the adhesive layer.
（２）耐熱性の評価：
先ず、粘着性積層テープを調製した後、２５℃、５０ＲＨで７２時間養生して安定化する。次いで、２０ｇ／ｃｍ２荷重下、５０℃で２４時間、粘着性積層テープを保持する。室温で放冷した後、粘着性積層テープを幅２５ｍｍ、長さ１５０ｍｍに切断し、粘着層と隣接する基材の背面をステンレス板に固定し、剥離試験器を使用し、２５℃、５０ＲＨの雰囲気下、３００ｍｍ／ｍｉｎの引っ張り速度で離型層と粘着層の界面を１８０°剥離させる際の力（剥離力）を測定する。結果は５回の測定の平均値で表示した。離型力が小さいほど粘着層との剥離が容易である。
(2) Evaluation of heat resistance:
First, after preparing an adhesive laminated tape, it is cured at 25 ° C. and 50 RH for 72 hours to be stabilized. Next, the adhesive laminated tape is held at 50 ° C. for 24 hours under a load of 20 g / cm 2 . After cooling at room temperature, the adhesive laminated tape was cut into a width of 25 mm and a length of 150 mm, the back surface of the substrate adjacent to the adhesive layer was fixed to a stainless steel plate, and a peel tester was used at 25 ° C. and 50 RH. Under an atmosphere, a force (peeling force) when the interface between the release layer and the adhesive layer is peeled by 180 ° at a tensile speed of 300 mm / min is measured. The results were expressed as the average of five measurements. The smaller the releasing force, the easier the peeling from the adhesive layer.
ポリオレフィン、粘着剤および炭化水素としては下記のものを使用した。ポリオレフィン及び量炭化水素の重量平均分子量は、ゲルパーミエーションクロマトグラフィーにより、標準ポリスチレンで作成した検量線を使用して算出した。測定条件は次の通りである。 The following were used as the polyolefin, the pressure-sensitive adhesive and the 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.
ポリオレフィン（ＰＥ−１）：メタロセン触媒を使用して製造したエチレンーヘキセンランダム共重合体；組成（Ｈ−ＮＭＲで測定。以下、同じ）は、エチレン／ヘキセン＝９０／１０（モル比）、重量平均分子量は７０，１００、数平均分子量に対する重量平均分子量の比は２．３、密度は０．８８０ｇ／ｃｃである。 Polyolefin (PE-1): an ethylene-hexene random copolymer produced using a metallocene catalyst; the composition (measured by H-NMR; hereinafter the same) is ethylene / hexene = 90/10 (molar ratio), weight The average molecular weight is 70,100, the ratio of the weight average molecular weight to the number average molecular weight is 2.3, and the density is 0.880 g / cc.
ポリオレフィン（ＰＥ−２）：メタロセン触媒を使用して製造したエチレンーヘキセンランダム共重合体；組成は、ヘキセン／エチレン＝５．５／９４．５（モル比）、重量平均分子量は８０，０００、数平均分子量に対する重量平均分子量の比は２．２、密度は０．９００ｇ／ｃｃである。 Polyolefin (PE-2): an ethylene-hexene random copolymer produced using a metallocene catalyst; the composition was hexene / ethylene = 5.5 / 94.5 (molar ratio), the weight average molecular weight was 80,000, The ratio of the weight average molecular weight to the number average molecular weight is 2.2, and the density is 0.900 g / cc.
ポリオレフィン（ＰＥ−３）：ポリオレフィン（ＰＥ−１）１００重量部、２−ヒドロキシエチルメタクリレート３重量部、２，５−ジメチル−２，５−ジターシャリブチルパーオキサイド０．１５重量部を混合した後、ラボプラストミル混練機（東洋精機社製）を使用し、窒素雰囲気下、１８０℃で３分間、回転数６０ｒｐｍで混練して得た、ヒドロキシル基を有する変性エチレン−ヘキセンランダム共重合体；カルボニル基の特性吸収強度の測定値（ＦＴ−ＩＲスペクトルによる１７２４ｃｍ-１の値、以下、同じ）から見積もった２−ヒドロキシエチルメタクリレート（ＨＥＭＡ）の含有量は０．９重量％、重量平均分子量は８２，０００である。 Polyolefin (PE-3): After mixing 100 parts by weight of polyolefin (PE-1), 3 parts by weight of 2-hydroxyethyl methacrylate, and 0.15 parts by weight of 2,5-dimethyl-2,5-ditert-butyl peroxide. A modified ethylene-hexene random copolymer having a hydroxyl group, obtained by kneading at 180 ° C. for 3 minutes at a rotation speed of 60 rpm using a Labo Plastomill kneader (manufactured by Toyo Seiki Co., Ltd.); carbonyl The content of 2-hydroxyethyl methacrylate (HEMA) estimated from the measured value of the characteristic absorption intensity of the group (a value of 1,724 cm -1 by FT-IR spectrum, the same applies hereinafter) was 0.9% by weight, and the weight average molecular weight was 82. , 000.
ポリオレフィン（ＰＥ−４）：エチレン−ヘキセン共重合体（日本ポリエチレン社製、カーネルＫＦ３７０）；重量平均分子量は７０，０００、数平均分子量に対する重量平均分子量の比は２．０、密度は０．９０５ｇ／ｃｃである。 Polyolefin (PE-4): ethylene-hexene copolymer (Kernel KF370, manufactured by Nippon Polyethylene Co., Ltd.); the weight average molecular weight is 70,000, the ratio of the weight average molecular weight to the number average molecular weight is 2.0, and the density is 0.905 g. / Cc.
ポリオレフィン（ＰＥ−５）：上記ポリオレフィン（ＰＥ−３）の調製において、ポリオレフィン（ＰＥ−１）の代わりに、メタロセン触媒を使用して重合したエチレン・プロピレン共重合体（組成はエチレン／プロピレン＝８０／２０（モル比）、重量平均分子量は９６，０００）を使用した以外は、同様に混練処理して得られヒドロキシル基を有する変性エチレン−ヘキセンランダム共重合体；カルボニル基の特性吸収強度の測定値から見積もったＨＥＭＡの含有量は１．１重量％、重量平均分子量は８０，０００である。 Polyolefin (PE-5): In the preparation of the above-mentioned polyolefin (PE-3), an ethylene / propylene copolymer polymerized by using a metallocene catalyst instead of the polyolefin (PE-1) (composition: ethylene / propylene = 80) / 20 (molar ratio, weight average molecular weight: 96,000), except that a modified ethylene-hexene random copolymer having a hydroxyl group and obtained by kneading in the same manner; measurement of characteristic absorption intensity of carbonyl group The HEMA content estimated from the values is 1.1% by weight, and the weight average molecular weight is 80,000.
ポリアクリル酸エステル系粘着剤Ａ：ｎ−ブチルアクリレート１００重量部とアクリル酸５重量部とをトルエンに溶解し、ベンゾイルパーオキサイドを使用して常法により重合させ、重量平均分子量が約５０万のアクリル系ポリマーの溶液（固形分５０重量％）を得、これに固形分量が３０重量％となる様に酢酸エチルを加えた後、アクリル系ポリマー１００重量部当たりイソシアネート系架橋剤を３重量部添加して調製したもの。 Polyacrylic ester-based pressure-sensitive 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 have a weight average molecular weight of about 500,000. An acrylic polymer solution (solid content: 50% by weight) was obtained, and ethyl acetate was added thereto so that the solid content became 30% by weight. Then, 3 parts by weight of an isocyanate-based crosslinking agent was added per 100 parts by weight of the acrylic polymer. Prepared by
低分子量炭化水素（ＬＨ−１）：出光興産社製の「ダイアナプロセスオイルＰＷ−９０」；重量平均分子量は８８０、数平均分子量は７６０、流動点は−１５．０℃（カタログ記載値）、非環式脂肪族鎖構造の炭素原子は７１．０％、飽和脂肪族環構造の炭素原子は２９．０％、粘度１９５センチポイズである。この粘度の測定は本文に記載の方法で行った。 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 described in catalog), The carbon atom of the acyclic aliphatic chain structure is 71.0%, the carbon atom of the saturated aliphatic ring structure is 29.0%, and the viscosity is 195 centipoise. The measurement of the viscosity was performed by the method described in the text.
低分子量炭化水素（ＬＨ−２）：出光興産社製の「ダイアナプロセスオイルＰＷ−３８０」；重量平均分子量は１，４５０、数平均分子量は１，２００、流動点は−１５℃（カタログ記載値）、非環式脂肪族鎖構造の炭素原子は７３．０％、飽和脂肪族環構造の炭素原子は２７．０％である。また、上記と同様に測定した粘度は９５０センチポイズであった。 Low molecular weight hydrocarbon (LH-2): "Diana Process Oil PW-380" manufactured by Idemitsu Kosan Co .; weight average molecular weight is 1,450, number average molecular weight is 1,200, pour point is -15 ° C (value described in catalog) ), The carbon atom of the acyclic aliphatic chain structure is 73.0%, and the carbon atom of the saturated aliphatic ring structure is 27.0%. The viscosity measured in the same manner as above was 950 centipoise.
実施例１：
表３に示す割合でポリオレフィン（ＰＥ−１）と炭化水素とを配合し、二軸押出機を使用し、２３０℃、平均滞留時間３分で混練し、離型剤を製造した。この離型剤をＴダイ成形機から２４０℃で押出し、離型層のみから成る離型シートを得た。離型シートの厚さは５０μｍであった。
Example 1
A polyolefin (PE-1) and a hydrocarbon were blended at the ratio shown in Table 3, and kneaded using a twin-screw extruder at 230 ° C. for an average residence time of 3 minutes to produce a release agent. This release agent was extruded from a T-die molding machine at 240 ° C. to obtain a release sheet composed of only a release layer. The thickness of the release sheet was 50 μm.
アプリケーター（太佑機材（株）製、１００μｍ用）を使用し、ポリアクリル酸エステル系粘着剤溶液Ａを塗工液の厚さ１００μｍ、幅８ｃｍとなる様に、厚さ２５μｍのポリエステルフィルムに２３℃で塗布した。塗布後、２秒経過してから、８０℃に加熱されたドライヤ（佐竹化学機器工業（株）製「セーフベンドライヤＮ５０ Ｓ５」）内で２分間乾燥させた後、取り出して室温に冷却し、粘着層および基材から成る粘着シートを得た。室温まで冷却してから２分後に、この粘着シートを上記の離型シート上に置き、その上から２ｋｇのローラーを３０ｃｍ／ｍｉｎの速度で一往復させることにより、粘着層と離型層を圧着させた。これにより、離型層／粘着層／基材の層構成から成る粘着性積層テープを作製した。 Using an applicator (manufactured by Taiyo Kiki Co., Ltd. for 100 μm), apply a polyacrylate-based pressure-sensitive adhesive solution A to a 25 μm-thick polyester film at 23 ° C. so that the coating liquid has a thickness of 100 μm and a width of 8 cm. Was applied. Two seconds after the application, after drying in a dryer heated to 80 ° C. (“Safe Ben Dryer N50 S5” manufactured by Satake Chemical Instruments Co., Ltd.) for 2 minutes, taken out and cooled to room temperature, An adhesive sheet comprising an adhesive layer and a substrate was obtained. Two minutes after cooling to room temperature, the pressure-sensitive adhesive sheet is placed on the release sheet, and a 2-kg roller is reciprocated from above at a speed of 30 cm / min to press-bond the pressure-sensitive adhesive layer and the release layer. I let it. Thus, an adhesive laminated tape having a layer structure of a release layer / adhesive layer / substrate was produced.
実施例２〜６：
表３に示す割合でポリオレフィンと炭化水素とを配合し、二軸押出機を使用し、２３０℃、平均滞留時間３分で混練し、離型剤を製造した。Ｔダイ成形機からＬＬＤＰＥ（密度０．９３ｇ／ｃｃ、メルトインデックス２．０ｇ／１０ｍｉｎ）と上記離型剤とを２４０℃で共押出し、基材および離型層から成る離型シートを得た。基材の厚さは２５μｍ、離型層の厚さは１μｍであった。なお、実施例５では、離型剤の製造に際し、離型剤１００重量部に対してゼオライト系のアンチブロッキング剤（平均粒子径７．５μｍ）を２重量部となる様に配合した。
Examples 2 to 6:
A polyolefin and a hydrocarbon were blended at the ratio shown in Table 3, and kneaded using a twin-screw extruder at 230 ° C. for an average residence time of 3 minutes to produce a release agent. LLDPE (density 0.93 g / cc, melt index 2.0 g / 10 min) and the release agent were co-extruded at 240 ° C. from a T-die molding machine to obtain a release sheet comprising a base material and a release layer. The thickness of the substrate was 25 μm, and the thickness of the release layer was 1 μm. In Example 5, a zeolite-based anti-blocking agent (average particle diameter of 7.5 μm) was blended in an amount of 2 parts by weight with respect to 100 parts by weight of the release agent when producing the release agent.
次いで、上記の離型シート上に、実施例１と同様にして得た粘着シートを実施例１と同様に圧着させ、基材／離型層／粘着層／基材の層構成から成る粘着性積層テープを調製した。 Then, 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, and the pressure-sensitive adhesive having the layer structure of base material / release layer / adhesive layer / base material was obtained. A laminated tape was prepared.
実施例７：
ポリオレフィン（ＰＥ−３）３０重量部、ポリオレフィン（ＰＥ−１）５０重量部、炭化水素（ＬＨ−１）２０重量部を６０℃に加熱したトルエンに溶解し、その後、冷却して離型剤の濃度が２重量％の離型剤溶液を調製した。厚さ２５μｍのポリエステルフィルム上に、乾燥後の厚さが０．１μｍとなる様に、上記の離型剤溶液を塗布し、１５０℃の雰囲気下、１分間乾燥させて離型シートを得た。ポリアクリル酸エステル系粘着剤溶液Ａを、乾燥後の厚さが４０μｍになる様に上記の離型シートの離型層上に塗布し、８０℃で５分間乾燥し、粘着剤層を形成した。この粘着層に、基材として厚さが２５μｍのポリエステルフィルムを貼り合わせ、基材／離型層／粘着層／基材の層構成から成る粘着性積層テープを作製した。
Example 7:
30 parts by weight of polyolefin (PE-3), 50 parts by weight of polyolefin (PE-1), and 20 parts by weight of hydrocarbon (LH-1) are dissolved in toluene heated to 60 ° C., and then cooled to release a mold release agent. A release agent solution having a concentration of 2% by weight was prepared. The above release agent solution was applied onto a 25 μm thick polyester film so that the thickness after drying was 0.1 μm, and dried under an atmosphere at 150 ° C. for 1 minute to obtain a release sheet. . The polyacrylate-based pressure-sensitive adhesive solution A was applied on the release layer of the release sheet so that the thickness after drying was 40 μm, and dried at 80 ° C. for 5 minutes to form a pressure-sensitive adhesive layer. . A polyester film having a thickness of 25 μm was adhered to the adhesive layer as a substrate to produce an adhesive laminated tape having a layer structure of substrate / release layer / adhesive layer / substrate.
実施例８：
実施例７で調製した離型剤溶液に、三菱化学社製のＮＹ７１８Ａ（トリオール１モルに脂肪族ジイソシアネート３モルを付加した３官能性イソシアネートの７６重量％酢酸ブチル溶液）を添加して架橋剤を含む離型剤溶液を調製した。この溶液は、架橋剤として、ポリオレフィン（ＰＥ−３）に含まれているＨＥＭＡに対して１．１当量のイソシアネート基を含有している。この離型剤溶液を使用した以外は、実施例７と全く同様にし、基材および離型層からなる離型シートを得た。次いで、実施例７と同様にして基材／離型層／粘着層／基材の層構成から成る粘着性積層テープを作製した。
Example 8:
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 obtained by adding 3 moles of aliphatic diisocyanate to 1 mole of triol) was added to form a crosslinking agent. A release agent solution was prepared. This solution contains 1.1 equivalents of isocyanate groups with respect to HEMA contained in the 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 base material / release layer / adhesive layer / base material was produced.
実施例９：
片艶晒クラフト紙「８０ｇ／ｍ２：大王製紙（株）製」から成る剥離用支持基材のザラ紙面に、密度０．９２０ｇ／ｃｃ、メルトインデックス７．０ｇ／１０ｍｉｎの低密度ポリエチレンを３２５℃で溶融押し出しラミネートしてプライマー層とした（厚さ：３０μｍ）。このプライマー層に対して実施例４で使用したと同様の離型剤を３０μｍとなる様に２４０℃で溶融押出しラミネートし、基材／プライマー層／離型層の層構成から成る離型シートを得た。次いで、実施例２と同様に操作し、基材／プライマー層／離型層／粘着層／基材の層構成から成る粘着性積層テープを調製した。
Example 9:
325 low-density polyethylene having a density of 0.920 g / cc and a melt index of 7.0 g / 10 min was coated on the surface of the rough support paper made of a single-glazed bleached kraft paper “80 g / m 2 : manufactured by Daio Paper Co., Ltd.” The resulting mixture was melt-extruded and laminated at a temperature of ° C to form a primer layer (thickness: 30 µm). The same release agent as used in Example 4 was melt-extruded and laminated at 240 ° C. to the primer layer so as to have a thickness of 30 μm, and a release sheet having a layer structure of base material / primer layer / release layer was obtained. Obtained. Next, the same operation as in Example 2 was performed to prepare an adhesive laminated tape having a layer structure of base material / primer layer / release layer / adhesive layer / base material.
実施例１０：
ポリオレフィン（ＰＥ−５）５０重量部と炭化水素（ＬＨ−１）５０重量部とを６０℃に加熱したトルエンに溶解し、その後、冷却して離型剤の濃度が２重量％の離型剤溶液を調製した。この離型剤溶液に三菱化学社製「ＮＹ７１８Ａ」（トリオール１モルに脂肪族ジイソシアネート３モルを付加した３官能イソシアネートの７６重量％酢酸ブチル溶液）を添加して架橋剤を含む離型剤溶液を調製した。この溶液は、架橋剤として、ポリオレフィン（ＰＥ−５）に含まれているＨＥＭＡに対して１．２当量のイソシアネート基を含有している。この架橋剤含有離型剤溶液を使用した以外は、実施例７と全く同様に操作し、基材および離型層から成る離型シートを得、更に、基材／離型層／粘着層／基材の層構成から成る粘着性積層テープを作製した。
Example 10:
50 parts by weight of polyolefin (PE-5) and 50 parts by weight of hydrocarbon (LH-1) are dissolved in toluene heated to 60 ° C., and then cooled to obtain a release agent having a release agent concentration of 2% by weight. A solution was prepared. To this release agent solution was added “NY718A” manufactured by Mitsubishi Chemical Corporation (a 76% by weight butyl acetate solution of trifunctional isocyanate obtained by adding 3 mol of aliphatic diisocyanate to 1 mol of triol) to prepare a release agent solution containing a crosslinking agent. Prepared. This solution contains, as a crosslinking 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 carried out to obtain a release sheet comprising a base material and a release layer, and further, a base material / release layer / adhesive layer / adhesive layer / An adhesive laminated tape having the layer structure of the substrate was produced.
実施例１１：
ポリオレフィン（ＰＥ−１）５６重量部、ポリオレフィン（ＰＥ−５）２４重量部、炭化水素（ＬＨ−１）２０重量部を６０℃に加熱したトルエンに溶解し、その後、冷却して離型剤の濃度が２重量％の離型剤溶液を調製した。この離型剤溶液に前述の三菱化学社製「ＮＹ７１８Ａ」を添加して架橋剤を含む離型剤溶液を調製した。この溶液は、架橋剤として、ポリオレフィン（ＰＥ−５）に含まれているＨＥＭＡに対して１．２当量のイソシアネート基を含有している。この架橋剤含有離型剤溶液を使用した以外は、実施例７と全く同様に操作し、基材および離型層から成る離型シートを得、更に、基材／離型層／粘着層／基材の層構成から成る粘着性積層テープを作製した。
Example 11:
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 a mold release agent. A release agent solution having a concentration of 2% by weight was prepared. The above-mentioned “NY718A” manufactured by Mitsubishi Chemical Corporation was added to this release agent solution to prepare a release agent solution containing a crosslinking agent. This solution contains, as a crosslinking 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 carried out to obtain a release sheet comprising a base material and a release layer, and further, a base material / release layer / adhesive layer / adhesive layer / An adhesive laminated tape having the layer structure of the substrate was produced.
実施例１２：
実施例２において、ポリエチレン（ＰＥ−４）７０重量部および炭化水素（ＬＨ−２）３０重量部からなる離型剤を使用した以外は、実施例２と全く同様に操作し、基材／離型層／粘着層／基材の層構成から成粘着性積層テープを作製した。
Example 12:
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 the mold layer / adhesive layer / substrate.
比較例１：
離型剤としてポリエチレン（ＰＥ−１）そのものを使用した以外は、実施例２と全く同様に操作し、基材／離型層／粘着層／基材の層構成から成粘着性積層テープを作製した。
Comparative Example 1:
Except that polyethylene (PE-1) itself was used as a release agent, the same operation as in Example 2 was carried out to produce a laminated adhesive tape from the base material / release layer / adhesive layer / base material layer configuration. did.
比較例２：
ポリオレフィン（ＰＥ−１）をトルエンに２重量％溶液となる様に溶解して離型剤溶液として使用した以外は、実施例７と全く同様に操作し、基材／離型層／／粘着層／基材の層構成から成る粘着性積層テープを作製した。
Comparative Example 2:
Except that polyolefin (PE-1) was dissolved in toluene to form a 2% by weight solution and used as a release agent solution, the operation was performed in exactly the same manner as in Example 7, except that the base material / release layer // adhesive layer was used. / An adhesive laminated tape having a layer structure of substrate was prepared.
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Cited By (7)
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| JP2006249350A (en) * | 2005-03-14 | 2006-09-21 | Mitsui Chemicals Inc | Resin composition for foam molding and foamed molded article formed from the same |
| WO2011016539A1 (en) * | 2009-08-07 | 2011-02-10 | 日東電工株式会社 | Release agent, release material, and pressure-sensitive adhesive tape |
| WO2011043214A1 (en) * | 2009-10-05 | 2011-04-14 | 日東電工株式会社 | Remover, release material, and adhesive tape |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006249350A (en) * | 2005-03-14 | 2006-09-21 | Mitsui Chemicals Inc | Resin composition for foam molding and foamed molded article formed from the same |
| WO2011016539A1 (en) * | 2009-08-07 | 2011-02-10 | 日東電工株式会社 | Release agent, release material, and pressure-sensitive adhesive tape |
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| WO2011155533A1 (en) * | 2010-06-11 | 2011-12-15 | 日東電工株式会社 | Adhesive sheet |
| WO2012172975A1 (en) * | 2011-06-14 | 2012-12-20 | 日東電工株式会社 | Selection method for separator and adhesive sheet using separator selected by selection method |
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