JP5270855B2 - Water-dispersed heat sealant composition - Google Patents
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- 239000000203 mixture Substances 0.000 title claims abstract description 36
- 239000000565 sealant Substances 0.000 title claims description 20
- 239000002245 particle Substances 0.000 claims abstract description 25
- 229920001971 elastomer Polymers 0.000 claims abstract description 23
- 239000000806 elastomer Substances 0.000 claims abstract description 23
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims abstract description 16
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000005977 Ethylene Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 229920001577 copolymer Polymers 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000004793 Polystyrene Substances 0.000 claims abstract description 9
- 229920000098 polyolefin Polymers 0.000 claims abstract description 9
- 229920002223 polystyrene Polymers 0.000 claims abstract description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 31
- 229920005989 resin Polymers 0.000 claims description 25
- 239000011347 resin Substances 0.000 claims description 25
- 239000011888 foil Substances 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 14
- 229920001400 block copolymer Polymers 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000000178 monomer Substances 0.000 claims description 8
- 229920006132 styrene block copolymer Polymers 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229920001038 ethylene copolymer Polymers 0.000 claims description 7
- 239000011889 copper foil Substances 0.000 claims description 6
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 24
- -1 polyethylene Polymers 0.000 abstract description 17
- 230000015572 biosynthetic process Effects 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000004743 Polypropylene Substances 0.000 abstract description 7
- 239000004698 Polyethylene Substances 0.000 abstract description 6
- 229910052751 metal Inorganic materials 0.000 abstract description 6
- 239000002184 metal Substances 0.000 abstract description 6
- 229920001155 polypropylene Polymers 0.000 abstract description 6
- 229920000573 polyethylene Polymers 0.000 abstract description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 15
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 12
- 238000005259 measurement Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 9
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 9
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- WVDDGKGOMKODPV-UHFFFAOYSA-N Benzyl alcohol Chemical compound OCC1=CC=CC=C1 WVDDGKGOMKODPV-UHFFFAOYSA-N 0.000 description 6
- 238000000149 argon plasma sintering Methods 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
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- 229920006026 co-polymeric resin Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 229920002126 Acrylic acid copolymer Polymers 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 229920003145 methacrylic acid copolymer Polymers 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 239000000080 wetting agent Substances 0.000 description 4
- PRPINYUDVPFIRX-UHFFFAOYSA-N 1-naphthaleneacetic acid Chemical compound C1=CC=C2C(CC(=O)O)=CC=CC2=C1 PRPINYUDVPFIRX-UHFFFAOYSA-N 0.000 description 3
- WRMNZCZEMHIOCP-UHFFFAOYSA-N 2-Phenylethanol Natural products OCCC1=CC=CC=C1 WRMNZCZEMHIOCP-UHFFFAOYSA-N 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000012855 volatile organic compound Substances 0.000 description 3
- QOXOZONBQWIKDA-UHFFFAOYSA-N 3-hydroxypropyl Chemical group [CH2]CCO QOXOZONBQWIKDA-UHFFFAOYSA-N 0.000 description 2
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- XXROGKLTLUQVRX-UHFFFAOYSA-N allyl alcohol Chemical compound OCC=C XXROGKLTLUQVRX-UHFFFAOYSA-N 0.000 description 2
- 235000019445 benzyl alcohol Nutrition 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VSMOENVRRABVKN-UHFFFAOYSA-N oct-1-en-3-ol Chemical compound CCCCCC(O)C=C VSMOENVRRABVKN-UHFFFAOYSA-N 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- ORTVZLZNOYNASJ-UPHRSURJSA-N (z)-but-2-ene-1,4-diol Chemical compound OC\C=C/CO ORTVZLZNOYNASJ-UPHRSURJSA-N 0.000 description 1
- VSMOENVRRABVKN-MRVPVSSYSA-N 1-Octen-3-ol Natural products CCCCC[C@H](O)C=C VSMOENVRRABVKN-MRVPVSSYSA-N 0.000 description 1
- FCBZNZYQLJTCKR-UHFFFAOYSA-N 1-prop-2-enoxyethanol Chemical compound CC(O)OCC=C FCBZNZYQLJTCKR-UHFFFAOYSA-N 0.000 description 1
- GIEMHYCMBGELGY-UHFFFAOYSA-N 10-undecen-1-ol Chemical compound OCCCCCCCCCC=C GIEMHYCMBGELGY-UHFFFAOYSA-N 0.000 description 1
- HBFBFJVRBIGLND-UHFFFAOYSA-N 2,2-bis(hydroxymethyl)butane-1,4-diol Chemical compound OCCC(CO)(CO)CO HBFBFJVRBIGLND-UHFFFAOYSA-N 0.000 description 1
- XLLXMBCBJGATSP-UHFFFAOYSA-N 2-phenylethenol Chemical compound OC=CC1=CC=CC=C1 XLLXMBCBJGATSP-UHFFFAOYSA-N 0.000 description 1
- IGDCJKDZZUALAO-UHFFFAOYSA-N 2-prop-2-enoxypropane-1,3-diol Chemical compound OCC(CO)OCC=C IGDCJKDZZUALAO-UHFFFAOYSA-N 0.000 description 1
- YDXQPTHHAPCTPP-UHFFFAOYSA-N 3-Octen-1-ol Natural products CCCCC=CCCO YDXQPTHHAPCTPP-UHFFFAOYSA-N 0.000 description 1
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 1
- CNCOEDDPFOAUMB-UHFFFAOYSA-N N-Methylolacrylamide Chemical compound OCNC(=O)C=C CNCOEDDPFOAUMB-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 150000001805 chlorine compounds Chemical class 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- JMGZBMRVDHKMKB-UHFFFAOYSA-L disodium;2-sulfobutanedioate Chemical compound [Na+].[Na+].OS(=O)(=O)C(C([O-])=O)CC([O-])=O JMGZBMRVDHKMKB-UHFFFAOYSA-L 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 125000003700 epoxy group Chemical group 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Substances OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 1
- JESXATFQYMPTNL-UHFFFAOYSA-N mono-hydroxyphenyl-ethylene Natural products OC1=CC=CC=C1C=C JESXATFQYMPTNL-UHFFFAOYSA-N 0.000 description 1
- JFNLZVQOOSMTJK-KNVOCYPGSA-N norbornene Chemical compound C1[C@@H]2CC[C@H]1C=C2 JFNLZVQOOSMTJK-KNVOCYPGSA-N 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- WVDDGKGOMKODPV-ZQBYOMGUSA-N phenyl(114C)methanol Chemical compound O[14CH2]C1=CC=CC=C1 WVDDGKGOMKODPV-ZQBYOMGUSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- Laminated Bodies (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
Description
本発明は成膜後の乾燥性、低温ヒートシール性と安全性が優れた水分散型ヒートシール剤用組成物に関する。 The present invention relates to a water-dispersed heat sealant composition having excellent dryability after film formation, low-temperature heat sealability and safety.
従来、ポリエチレン、または、ポリプロピレンと、アルミニウムまたは、銅等の金属との接着剤として、溶剤にポリオレフィン系樹脂を分散したヒートシール剤が提案されていた。しかし、近年、環境問題に関するＶＯＣ規制により、市場では、塗膜形成過程で大気中に揮発性有機化合物を放出させる溶剤系樹脂から、溶剤を含まず環境に優しい、揮発性有機化合物を含まない、安全な水に分散された樹脂に代わりつつある。既にエチレンと不飽和カルボン酸共重合体樹脂の水分散体が提案されている（特許文献１）。これらの水分散体エマルションは、ヒートシール剤として有効に利用されてきたがエチレンと不飽和カルボン酸共重合体の分子量が極度に低いと乾燥直後のベタツキ感や強度が不足して使用が困難であるという問題があった。
本発明は、上記の問題点を解決することを目的としており、具体的にはヒートシール剤として、塗膜の加熱成膜後のベタツキが無く、ヒートシール性に優れ、ポリエチレンやポリプロピレン等のポリオレフィンと金属との接着において良好な接着性を有する水分散型ヒートシール剤用組成物を提供することにある。 The present invention aims to solve the above-mentioned problems. Specifically, as a heat sealing agent, there is no stickiness after heating of the coating film, excellent heat sealing properties, and polyolefins such as polyethylene and polypropylene. An object of the present invention is to provide a water-dispersed heat sealant composition having good adhesion in bonding metal to metal.
本発明は、下記（１）から（６）に記載の水分散型ヒートシール剤用組成物である。
（１） 極性基を有するスチレン系ブロック共重合体であるスチレン系エラストマー（Ａ）と、（メタ）アクリル酸とエチレンとの共重合体（Ｂ）とを含み、（Ａ）と（Ｂ）との比率が（Ａ）／（Ｂ）＝４０〜９５重量％／５〜６０重量％であり、かつ（Ａ）と（Ｂ）とが同一粒子に含まれた粒子である水分散型ヒートシール剤用組成物。
（２） 前記極性基を有するスチレン系ブロック共重合体であるスチレン系エラストマー（Ａ）が、スチレンを５〜６０モル％含有するブロック共重合体であり、ＭＦＲ（ＪＩＳ Ｋ７２１０）が０．１〜２００ｇ／１０分のスチレン系ブロック共重合体に、グラフト量が０．１〜１０重量％になるように極性基含有モノマーをグラフトしたものである（１）に記載の水分散型ヒートシール剤用組成物。
（３） 前記極性基含有モノマー（「極性モノマー」とも称する。）が、水酸基含有エチレン性不飽和化合物である（２）に記載の水分散型ヒートシール剤用組成物。
（４） 前記極性基を有するスチレン系ブロック共重合体であるスチレン系エラストマー（Ａ）が、水酸基がグラフトされたポリスチレン−ポリプロピレン−ポリエチレン−ポリスチレンブロック共重合体樹脂（Ａ）である（１）から（３）のいずれか一項に記載の水分散型ヒートシール剤用組成物。
（５） 前記（メタ）アクリル酸とエチレンとの共重合体（Ｂ）が、ＭＦＲ（ＪＩＳ Ｋ７２１０）が３〜１５００ｇ／１０分の共重合体であり、かつ（メタ）アクリル酸の含有量が２〜３０重量％である（１）から（４）のいずれか一項に記載の水分散型ヒートシール剤用組成物。
（６） 前記極性基を有するスチレン系ブロック共重合体であるスチレン系エラストマー（Ａ）と、前記（メタ）アクリル酸とエチレンの共重合体（Ｂ）とが同一粒子に含まれている当該粒子の粒子径が、１０ｎｍ〜５０μｍである（１）から（５）のいずれか一項に記載の水分散型ヒートシール剤用組成物。
This onset Ming, Ru water dispersible heat seal composition for Der according to (6) from the following (1).
(1) A styrene-based elastomer (A) which is a styrene-based block copolymer having a polar group, and a copolymer (B) of (meth) acrylic acid and ethylene, (A) and (B) Ratio of (A) / (B) = 40 to 95% by weight / 5 to 60% by weight, and (A) and (B) are particles contained in the same particle. Composition.
(2) the styrene elastomer is a styrenic block copolymer having a polar group (A) is a block copolymer containing styrene 5 to 60 mole%, MFR (JIS K7210) is 0.1 For water-dispersed heat sealing agent according to (1), wherein a polar group- containing monomer is grafted onto a styrene block copolymer of 200 g / 10 min so that the graft amount is 0.1 to 10% by weight. Composition.
( 3 ) The composition for water-dispersed heat sealant according to (2), wherein the polar group-containing monomer (also referred to as “polar monomer”) is a hydroxyl group-containing ethylenically unsaturated compound.
(4) From (1), the styrene elastomer (A), which is a styrene block copolymer having the polar group, is a polystyrene-polypropylene-polyethylene-polystyrene block copolymer resin (A) grafted with hydroxyl groups. (3) The composition for water-dispersed heat sealing agents according to any one of (3).
(5) the copolymer of (meth) acrylic acid and ethylene (B) is, MFR (JIS K7210) is a copolymer of 3~1500g / 10 min, and the content of the (meth) acrylic acid The composition for water-dispersed heat sealing agents according to any one of (1) to (4), which is 2 to 30% by weight.
(6) and the styrene elastomer is a styrenic block copolymer having a polar group (A), the (meth) the particles of copolymers of acrylic acid and ethylene and (B) are included in the same particles The particle diameter of the water-dispersed heat sealant composition according to any one of (1) to (5) , wherein the particle diameter is 10 nm to 50 μm.
また、本発明は、下記（７）および（８）に記載の積層体である。
（７） （１）から（６）のいずれか一項に記載の水分散型ヒートシール剤用組成物が、アルミ箔、銅箔およびポリオレフィン系フィルムから選択されたいずれかひとつの一方の表面に塗布された積層体。
（８） （１）から（６）のいずれか一項に記載の水分散型ヒートシール剤用組成物が、アルミ箔、銅箔およびポリオレフィン系フィルムから選択されたふたつの間に塗布された積層体。
Moreover, this invention is a laminated body as described in following (7) and (8).
(7) The water-dispersed heat sealant composition according to any one of (1) to (6) is applied to any one surface selected from aluminum foil, copper foil, and polyolefin-based film. Applied laminate.
(8) A laminate in which the water-dispersed heat sealant composition according to any one of (1) to (6) is applied between two pieces selected from an aluminum foil, a copper foil, and a polyolefin film. body.
本発明の水分散型ヒートシール剤用組成物によれば、成膜後の乾燥性、低温ヒートシール性と安全性を改良することができ、特に、食品包装用アルミ箔用ヒートシール剤として好適に用いることができる。 According to the composition for water-dispersed heat sealant of the present invention, it is possible to improve the drying property after film formation, the low-temperature heat sealability and the safety, and particularly suitable as a heat sealant for food packaging aluminum foil. Can be used.
以下、本発明について詳細に説明する。
極性基を有するスチレン系エラストマー（Ａ）
本発明の極性基を有するスチレン系エラストマー（Ａ）は、スチレン系エラストマーに極性モノマーをグラフト共重合することにより得られる。
スチレン系エラストマーは、ヒートシール強度の点からスチレンを５〜６０モル％含有する共重合体であり、好ましくは１５〜４０モル％である。
また、ＪＩＳＫ７２１０による（加重２．１６Ｋｇｆ、２３０℃加熱時の１０分間吐出量ｇ）ＭＦＲは、ヒートシール強度の点から０．１〜２００ｇ、好ましくは１〜１００ｇである。
スチレン系エラストマーにグラフトさせる極性モノマーのグラフト量は、ヒートシール強度の点から０．１〜１０重量％である。
グラフトさせる極性モノマーとしては、水酸基含有エチレン性不飽和化合物、アミノ基含有エチレン性不飽和化合物、エポキシ基含有エチレン性不飽和化合物、不飽和カルボン酸とその無水物およびその誘導体、ビニルエステル化合物、塩化ビニル等を挙げることができるが、水酸基含有エチレン性不飽和化合物が接着強度と水分散性を両立する点で好ましい。
Hereinafter, the present invention will be described in detail.
Styrenic elastomer having a polar group (A)
The styrenic elastomer (A) having a polar group of the present invention can be obtained by graft copolymerizing a polar monomer with a styrenic elastomer.
The styrene elastomer is a copolymer containing 5 to 60 mol% of styrene from the viewpoint of heat seal strength, and preferably 15 to 40 mol%.
Further, MFR according to JISK7210 (weight 2.16 Kgf, discharge amount g for 10 minutes at 230 ° C. heating) is 0.1 to 200 g, preferably 1 to 100 g from the viewpoint of heat seal strength.
The grafting amount of the polar monomer grafted onto the styrene elastomer is 0.1 to 10% by weight from the viewpoint of heat seal strength.
Examples of polar monomers to be grafted include hydroxyl group-containing ethylenically unsaturated compounds, amino group-containing ethylenically unsaturated compounds, epoxy group-containing ethylenically unsaturated compounds, unsaturated carboxylic acids and their anhydrides and derivatives, vinyl ester compounds, and chlorides. Although vinyl etc. can be mentioned, a hydroxyl-containing ethylenically unsaturated compound is preferable at the point which makes adhesive strength and water dispersibility compatible.
水酸基含有エチレン性不飽和化合物としては、たとえば、ヒドロキシエチル（メタ）アクリレート、２−ヒドロキシプロピル（メタ）アクリレート、３−ヒドロキシプロピル（メタ）アクリレート、２−ヒドロキシー３−フェノキシープロピル（メタ）アクリレート、３−クロロー２−ヒドロキシプロピル（メタ）アクリレート、グリセリンモノ（メタ）アクリレート、ペンタエリスリトールモノ（メタ）アクリレート、トリメチロールプロパンモノ（メタ）アクリレート、テトラメチロールエタンモノ（メタ）アクリレート、ブタンジオールモノ（メタ）アクリレート、ポリエチレングリコールモノ（メタ）アクリレート、２−（６−ヒドロヘキサノイルオキシ）エチルアクリレート等の水酸基含有（メタ）アクリル酸エステルおよび１０−ウンデセンー１−オール、１−オクテンー３−オール、２−メタノールノルボルネン、ヒドロキシスチレン、Ｎ−メチロールアクリルアミド、２−（メタ）アクロイルオキシエチルアシッドフォスフェート、グリセリンモノアリルエーテル、アリルアルコール、アリロキシエタノール、２−ブテン１，４−ジオール、グリセリンモノアルコール等を挙げることができる。これらの中で好ましくは、ヒドロキシエチル（メタ）アクリレート、２−ヒドロキシプロピル（メタ）アクリレート、３−ヒドロキシプロピル（メタ）アクリレート、２−ヒドロキシー３−フェノキシープロピル（メタ）アクリレートを挙げることができる。 Examples of the hydroxyl group-containing ethylenically unsaturated compound include hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, 2-hydroxy-3-phenoxypropyl (meth) acrylate, 3-chloro-2-hydroxypropyl (meth) acrylate, glycerin mono (meth) acrylate, pentaerythritol mono (meth) acrylate, trimethylolpropane mono (meth) acrylate, tetramethylolethane mono (meth) acrylate, butanediol mono (meta) ) Acrylate, polyethylene glycol mono (meth) acrylate, 2- (6-hydrohexanoyloxy) ethyl acrylate and other hydroxyl group-containing (meth) acrylic acid esters and 10 Undecen-1-ol, 1-octen-3-ol, 2-methanol norbornene, hydroxystyrene, N-methylolacrylamide, 2- (meth) acryloyloxyethyl acid phosphate, glycerin monoallyl ether, allyl alcohol, allyloxyethanol, Examples include 2-butene 1,4-diol and glycerin monoalcohol. Among these, hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 3-hydroxypropyl (meth) acrylate, and 2-hydroxy-3-phenoxypropyl (meth) acrylate are preferable.
（メタ）アクリル酸とエチレンとの共重合体（Ｂ）
本発明の（メタ）アクリル酸とエチレンとの共重合体（Ｂ）は、（メタ）アクリル酸とエチレンとを共重合させて得られる。（メタ）アクリル酸の含有量は、複合化の点から２〜３０重量％、好ましくは１０〜２０重量％である。
このとき（メタ）アクリル酸とエチレンの共重合体のＪＩＳＫ７２１０による（加重２．１６Ｋｇｆ、１９０℃加熱時の１０分間吐出量ｇ）ＭＦＲは、ヒートシール強度の点から３〜１５００/１０分である。
Copolymer of (meth) acrylic acid and ethylene (B)
The copolymer (B) of (meth) acrylic acid and ethylene of the present invention is obtained by copolymerizing (meth) acrylic acid and ethylene. The content of (meth) acrylic acid is 2 to 30% by weight, preferably 10 to 20% by weight from the viewpoint of compositing.
At this time, MFR is 3 to 1500/10 minutes from the point of heat seal strength according to JISK7210 (a weight of 2.16 Kgf, a discharge amount g for 10 minutes when heated at 190 ° C.) of a copolymer of (meth) acrylic acid and ethylene. .
水分散型ヒートシール剤用組成物
本発明の水分散型ヒートシール剤用組成物は、極性基を有するスチレン系エラストマー（Ａ）と（メタ）アクリル酸とエチレンとの共重合体（Ｂ）との比率はヒートシール強度の点から（Ａ）/（Ｂ）＝４０〜９５重量％／５〜６０重量％、好ましくは（Ａ）/（Ｂ）＝５０〜９５重量％／５〜５０重量％、である。
また本発明の極性基を有するスチレン系エラストマー（Ａ）と（メタ）アクリル酸とエチレンの共重合体（Ｂ）の粒子は同一粒子に含まれている。ここで同一粒子に含まれているとは、極性基を有するスチレン系エラストマー（Ａ）をコアとして（メタ）アクリル酸とエチレンの共重合体（Ｂ）がシェルとなるコアシェル構造でも良く、また均一な状態でも良く、（Ａ）と（Ｂ）とが一部反応しても良い意味である。
Composition for water-dispersed heat sealant The composition for water-dispersed heat sealant of the present invention comprises a styrene elastomer (A) having a polar group, a copolymer (B) of (meth) acrylic acid and ethylene. The ratio of (A) / (B) = 40 to 95% by weight / 5 to 60% by weight, preferably (A) / (B) = 50 to 95% by weight / 5 to 50% by weight in terms of heat seal strength .
Further, the particles of the styrene elastomer (A) having a polar group of the present invention and the copolymer (B) of (meth) acrylic acid and ethylene are contained in the same particle. The term “contained in the same particle” as used herein may mean a core-shell structure in which a copolymer (B) of (meth) acrylic acid and ethylene is used as a core with a styrenic elastomer (A) having a polar group as a core, and is uniform. This means that (A) and (B) may partially react.
本発明の水分散型ヒートシール剤用組成物は水分散体の平均粒径は、ヒートシール強度の点から１０ｎｍ〜５０μｍである。好ましくは１０ｎｍ〜１０μｍ、より好ましくは１０ｎｍ〜３μｍの範囲である。 In the water-dispersed heat sealant composition of the present invention, the average particle size of the water dispersion is 10 nm to 50 μm from the viewpoint of heat seal strength. Preferably it is 10 nm-10 micrometers, More preferably, it is the range of 10 nm-3 micrometers.
本組成物において、必要に応じて少量の溶剤を添加して水分散化すると、水分散体の平均粒径が小さくなり、また、低温ヒートシール性も向上するため好ましい。このような溶剤として、ベンジルアルコールとエチルアルコール、エチレングリコールとグリセリンなどを挙げることができる。このうち、ベンジルアルコールとエチルアルコール、グリセリンが好ましく、特に、ベンジルアルコールとエチルアルコールが好ましい。 In the present composition, it is preferable to add a small amount of a solvent as necessary to disperse in water because the average particle size of the aqueous dispersion becomes small and the low temperature heat sealability is improved. Examples of such solvents include benzyl alcohol and ethyl alcohol, ethylene glycol and glycerin. Of these, benzyl alcohol, ethyl alcohol, and glycerin are preferable, and benzyl alcohol and ethyl alcohol are particularly preferable.
本発明の組成物は、必要に応じて、各種の樹脂、配合剤等の他の成分を、本発明の目的を損なわない範囲で含有してもよい。 他の成分としては、水分散樹脂、有機増粘剤、無機増粘剤、酸化防止剤、濡れ性改良剤、シリカ等の充填剤等が挙げられる。 The composition of this invention may contain other components, such as various resin and a compounding agent, in the range which does not impair the objective of this invention as needed. Examples of other components include water-dispersed resins, organic thickeners, inorganic thickeners, antioxidants, wettability improvers, and fillers such as silica.
本発明の組成物は、アルミ箔と紙、プラスチックフィルム上などに塗布し、乾燥、硬化して塗膜を形成する。組成物の塗布は、スプレー、カーテン、フローコーター、ロールコーター、刷毛塗り、浸せきのいずれの方法によっても行うことができる。 The composition of the present invention is applied on aluminum foil, paper, plastic film, etc., dried and cured to form a coating film. The composition can be applied by any of spraying, curtaining, flow coating, roll coating, brushing, and dipping methods.
本発明の水分散型ヒートシール剤用組成物を使用した積層体は、基材として、アルミ箔、銅箔、ＰＰやＰＥ等のポリオレフィン系フィルムから選択されたいずれかひとつの一方に塗布された積層体であり、アルミ箔、銅箔とポリオレフィン系フィルムとの間に塗布された積層体である。 The laminate using the composition for water-dispersed heat sealant of the present invention was applied to any one of aluminum foil, copper foil, polyolefin film such as PP and PE as a base material. It is a laminated body, and is a laminated body applied between an aluminum foil, a copper foil and a polyolefin film.
以下、実施例及び比較例により本発明をより具体的に説明するが、本発明はこれらの実施例に限定されるものではない。 EXAMPLES Hereinafter, although an Example and a comparative example demonstrate this invention more concretely, this invention is not limited to these Examples.
[物性の測定]
ＭＦＲの測定
ＪＩＳ Ｋ７２１０に準じた方法により測定した。
平均粒径の測定
Microtrac UPA（Ｈｏｎｎｅｙｗｅｌｌ社）を用いて分散体の平均粒径を測定した。
[Measurement of physical properties]
Measurement of MFR The MFR was measured by a method according to JIS K7210.
Average particle size measurement
The average particle size of the dispersion was measured using Microtrac UPA (Honeywell).
[評価方法]
乾燥直後のベタツキ感
１１０℃×３分間乾燥後、指触感によるベタツキを観た
○ベタツキ無し、△ベタツキ若干あり、×ベタツキ有り
ヒートシール強度
アルミ箔に実施例と比較例で製造した樹脂を乾燥膜厚が５μｍになるようにバーコーターで塗布した後、１１０℃×３分間乾燥した。この樹脂が塗布された基材にポリエチレン基材を載せ、ヒートシール温度を１００℃および１３０℃、シール圧力１ＭＰａ、シール時間２秒間に設定して基材を作製した。
[Evaluation method]
Sticky feeling immediately after drying 110 ° C x 3 minutes after drying, I saw stickiness due to the touch feeling ○ No stickiness, △ Stickiness slightly, × stickiness
Heat seal strength
The resin produced in Examples and Comparative Examples was applied to an aluminum foil with a bar coater so that the dry film thickness was 5 μm, and then dried at 110 ° C. for 3 minutes. A polyethylene base material was placed on the base material coated with this resin, and the heat sealing temperature was set to 100 ° C. and 130 ° C., the sealing pressure was 1 MPa, and the sealing time was 2 seconds to prepare the base material.
[実施例１]
極性基を有するスチレン系エラストマー樹脂として水酸基がグラフトされたポリスチレン−ポリプロピレン−ポリエチレン−ポリスチレン共重合体樹脂（商品名ハイブラーＨＧ２５２、クラレ（株）社製、重量平均分子量：約５００００、）９０重量部とアクリル酸とエチレン共重合体樹脂（プリマコール５９８０、ダウケミカル（株）社製、アクリル酸含有量２０％、メルトフローレートが３００ｇ／１０分、）１０重量部を混合し、同軸方向回転噛合型２軸スクリュー押出機（池貝鉄工製ＰＣＭ−３０／Ｃ＝２０）のホッパー口より、３００重量部／時間の速度で供給し、２００℃で混練し、押出機の中間部に設けた供給口より２０％に溶解した水酸化カリウムをｐＨ５からｐＨ１０になるように加え連続的に押し出した、押し出された樹脂等の混練物はジャケット付きスタティックミキサーで９０℃まで冷却し取り出した。取り出した混練物を４５０重量部のイオン交換水中に分散し、水分散体を得た。得られた水分散体は不揮発分４０％、ｐＨ１０、光散乱測定による重量平均粒子直径は０．８μm、収率９９％であった。
得られた水分散体に濡れ剤としてスルホコハク酸ナトリウム１％を加え、バーコーターを使用して、アルミ箔に塗布、風乾した後、１１０℃にセットしたエア・オーブン中で２分間加熱し、均一透明な塗工箔を得た。加熱成膜直後の粘着性の有無は、指で触れることで評価した。この塗工箔とポリエチレンシートをＪＩＳ Ｚ１７０７に準拠した方法により１１０〜１３０℃で１秒間、１ｋｇ／ｃｍ2 の圧力をかけてヒートシールして試料とした。この試料の１８０°剥離強度を常温で測定した結果と加熱成膜直後の粘着性を表１に記した。
[Example 1]
90 parts by weight of a polystyrene-polypropylene-polyethylene-polystyrene copolymer resin grafted with a hydroxyl group as a styrenic elastomer resin having a polar group (trade name HIBRA HG252, manufactured by Kuraray Co., Ltd., weight average molecular weight: about 50000) Acrylic acid and ethylene copolymer resin (Primacol 5980, manufactured by Dow Chemical Co., Ltd., acrylic acid content 20%, melt flow rate 300 g / 10 min.) 10 parts by weight are mixed and rotated in the coaxial direction. From a hopper port of a twin screw extruder (Ikegai Iron Works PCM-30 / C = 20), supply at a speed of 300 parts by weight / hour, knead at 200 ° C., and from a supply port provided in an intermediate part of the extruder. Potassium hydroxide dissolved in 20% was added to pH 5 to pH 10 and continuously extruded. Kneaded product such as fat were taken out and cooled to 90 ° C. in a jacketed static mixer. The taken-out kneaded material was dispersed in 450 parts by weight of ion-exchanged water to obtain an aqueous dispersion. The obtained aqueous dispersion had a nonvolatile content of 40%, pH of 10, a weight average particle diameter of 0.8 μm by light scattering measurement, and a yield of 99%.
1% sodium sulfosuccinate 1% was added to the resulting aqueous dispersion as a wetting agent, applied to an aluminum foil using a bar coater, air-dried, and heated in an air oven set at 110 ° C. for 2 minutes to be uniform. A transparent coated foil was obtained. The presence or absence of adhesiveness immediately after heating film formation was evaluated by touching with a finger. The coated foil and the polyethylene sheet were heat-sealed by applying a pressure of 1 kg / cm 2 at 110 to 130 ° C. for 1 second by a method according to JIS Z1707 to obtain a sample. Table 1 shows the results of measuring the 180 ° peel strength of this sample at room temperature and the adhesiveness immediately after the heating film formation.
[実施例２]
極性基を有するスチレン系エラストマー樹脂として水酸基がグラフトされたポリスチレン−ポリプロピレン−ポリエチレン−ポリスチレン共重合体樹脂７５重量部と、アクリル酸とエチレン共重合体樹脂２５重量部、との配合を変えた他は実施例１と同様の操作で水分散体を得た。得られた水分散体は、不揮発分４０％、ｐＨ１０、光散乱測定による重量平均粒子直径は０．７μm、収率９９％であった。
該水分散体を実施例１と同様に濡れ剤を添加した後、アルミ箔に塗工し、ポリプロピレンシートとヒートシールした。剥離強度の測定結果と加熱成膜直後の粘着性を表１に記した。
[Example 2]
Other than changing the blend of 75 parts by weight of a polystyrene-polypropylene-polyethylene-polystyrene copolymer resin grafted with a hydroxyl group as a styrenic elastomer resin having a polar group and 25 parts by weight of acrylic acid and an ethylene copolymer resin An aqueous dispersion was obtained in the same manner as in Example 1. The obtained aqueous dispersion had a nonvolatile content of 40%, pH of 10, a weight average particle diameter of 0.7 μm by light scattering measurement, and a yield of 99%.
After adding a wetting agent to the aqueous dispersion in the same manner as in Example 1, it was coated on an aluminum foil and heat-sealed with a polypropylene sheet. Table 1 shows the peel strength measurement results and the adhesiveness immediately after heating film formation.
[実施例３]
極性基を有するスチレン系エラストマー樹脂として水酸基がグラフトされたポリスチレン−ポリプロピレン−ポリエチレン−ポリスチレン共重合体樹脂５０重量部とアクリル酸とエチレン共重合体樹脂５０重量部、との配合を変えた他は実施例１と同様な操作で水分散体を得た。得られた水分散体は、不揮発分４０％、ｐＨ１０、光散乱測定による重量平均粒子直径は０．７μm、収率９９％であった。
該水分散体を実施例１と同様に濡れ剤を添加した後、アルミ箔に塗工し、ポリプロピレンシートとヒートシールした。剥離強度の測定結果と加熱成膜直後の粘着性を表１に記した。
[Example 3]
Implementation was carried out except that 50 parts by weight of a polystyrene-polypropylene-polyethylene-polystyrene copolymer resin grafted with a hydroxyl group as a styrene elastomer resin having a polar group and 50 parts by weight of acrylic acid and ethylene copolymer resin were changed. An aqueous dispersion was obtained in the same manner as in Example 1. The obtained aqueous dispersion had a nonvolatile content of 40%, pH of 10, a weight average particle diameter of 0.7 μm by light scattering measurement, and a yield of 99%.
After adding a wetting agent to the aqueous dispersion in the same manner as in Example 1, it was coated on an aluminum foil and heat-sealed with a polypropylene sheet. Table 1 shows the peel strength measurement results and the adhesiveness immediately after heating film formation.
[実施例４]
極性基を有するスチレン系エラストマー樹脂として水酸基がグラフトされたポリスチレン−ポリプロピレン−ポリエチレン−ポリスチレン共重合体樹脂７５重量部とメタアクリル酸とエチレン共重合体樹脂（ニュークレル２０６０、三井ポリデュポン（株）社製、メタクリル酸含有量２０％、メルトフローレート６０ｇ／分、）２５重量部、と実施例３の原料を変えた他は実施例１と同様な操作で水分散体を得た。得られた水分散体は、不揮発分４０％、ｐＨ１０、光散乱測定による重量平均粒子直径は０．７μm、収率９９％であった。該水分散体を実施例１と同様に濡れ剤を添加した後、アルミ箔に塗工し、ポリプロピレンシートとヒートシールした。剥離強度の測定結果と加熱成膜直後の粘着性を表１に記した。
[Example 4]
75 parts by weight of a polystyrene-polypropylene-polyethylene-polystyrene copolymer resin grafted with a hydroxyl group as a styrenic elastomer resin having a polar group, methacrylic acid, and ethylene copolymer resin (Nucleel 2060, Mitsui Polydupont Co., Ltd.) A water dispersion was obtained in the same manner as in Example 1, except that the raw material of Example 3 was changed, and 25 parts by weight of a methacrylic acid content of 20%, a melt flow rate of 60 g / min. The obtained aqueous dispersion had a nonvolatile content of 40%, pH of 10, a weight average particle diameter of 0.7 μm by light scattering measurement, and a yield of 99%. After adding a wetting agent to the aqueous dispersion in the same manner as in Example 1, it was coated on an aluminum foil and heat-sealed with a polypropylene sheet. Table 1 shows the peel strength measurement results and the adhesiveness immediately after heating film formation.
［比較例１］
極性基を有するスチレン系エラストマー樹脂として水酸基がグラフトされたポリスチレン−ポリプロピレン−ポリエチレン−ポリスチレンブロック共重合体樹脂１００重量部を、同軸方向回転噛合型２軸スクリュー押出機（池貝鉄工製ＰＣＭ−３０／Ｃ＝２０）のホッパー口より、３００重量部／時間の速度で供給し、２２０℃で混練し、押出機の中間部に設けた供給口より２０％に溶解した水酸化カリウムをｐＨ５からｐＨ１０になるように加え連続的に押し出した、押し出された樹脂等の混練物はジャケット付きスタティックミキサーで９０℃まで冷却し取り出したが、水に分散しなかった。
[Comparative Example 1]
100 parts by weight of a polystyrene-polypropylene-polyethylene-polystyrene block copolymer resin grafted with a hydroxyl group as a styrenic elastomer resin having a polar group was converted into a coaxial direction rotation meshing type twin screw extruder (PCM-30 / C manufactured by Ikegai Iron Works). = 20) from the hopper port at a rate of 300 parts by weight / hour, kneaded at 220 ° C, and potassium hydroxide dissolved in 20% from the supply port provided in the middle part of the extruder is changed from pH 5 to pH 10. In addition, the kneaded material such as extruded resin that was continuously extruded was cooled to 90 ° C. with a jacketed static mixer, but was not dispersed in water.
［比較例２］
極性基を有するスチレン系エラストマー樹脂として水酸基がグラフトされたポリスチレン−ポリプロピレン−ポリエチレン−ポリスチレンブロック共重合体樹脂３５重量部アクリル酸とエチレン共重合体樹脂（プリマコール５９８０、ダウケミカル（株）社製、アクリル酸含有量２０％、メルトフローレートが３００ｇ／１０分、）６５重量部を、同軸方向回転噛合型２軸スクリュー押出機（池貝鉄工製ＰＣＭ−３０／Ｃ＝２０）のホッパー口より、３００重量部／時間の速度で供給し、２００℃で混練し、押出機の中間部に設けた供給口より２０％に溶解した水酸化カリウムをｐＨ５からｐＨ１０になるように加え連続的に押し出した、押し出された樹脂等の混練物はジャケット付きスタティックミキサーで９０℃まで冷却し取り出した。取り出した混練物を７００重量部のイオン交換水中に分散し、水分散体を得た。得られた水分散体は不揮発分３０％、ｐＨ１０、光散乱測定による重量平均粒子直径は０．４μm、収率９９％であった。
[Comparative Example 2]
35 parts by weight of polystyrene-polypropylene-polyethylene-polystyrene block copolymer resin grafted with a hydroxyl group as a styrenic elastomer resin having a polar group, acrylic acid and ethylene copolymer resin (Primacol 5980, manufactured by Dow Chemical Co., Ltd., 65 parts by weight of an acrylic acid content of 20%, a melt flow rate of 300 g / 10 min.) From a hopper port of a coaxial rotating meshing twin screw extruder (PCM-30 / C = 20 manufactured by Ikegai Iron Works) The mixture was fed at a rate of parts by weight / hour, kneaded at 200 ° C., and potassium hydroxide dissolved at 20% was added from the feed port provided in the middle part of the extruder so as to have a pH of 5 to 10, and extruded continuously. The extruded kneaded material such as resin was cooled to 90 ° C. with a jacketed static mixer and taken out. The taken-out kneaded material was dispersed in 700 parts by weight of ion-exchanged water to obtain an aqueous dispersion. The obtained aqueous dispersion had a nonvolatile content of 30%, pH of 10, a weight average particle diameter of 0.4 μm by light scattering measurement, and a yield of 99%.
［比較例３］
アクリル酸とエチレン共重合体樹脂（プリマコール５９８０、ダウケミカル（株）社製、アクリル酸含有量２０％、メルトフローレートが３００ｇ／１０分、）１００重量部を、同軸方向回転噛合型２軸スクリュー押出機（池貝鉄工製ＰＣＭ−３０／Ｃ＝２０）のホッパー口より、３００重量部／時間の速度で供給し、１８０℃で混練し、押出機の中間部に設けた供給口より２０％に溶解した水酸化カリウムをｐＨ５からｐＨ１０になるように加え連続的に押し出した、押し出された樹脂等の混練物はジャケット付きスタティックミキサーで９０℃まで冷却し取り出した。取り出した混練物を７００重量部のイオン交換水中に分散し、水分散体を得た。得られた水分散体は不揮発分３０％、ｐＨ１０、光散乱測定による重量平均粒子直径は０．４μm、収率９９％であった。
[Comparative Example 3]
100 parts by weight of acrylic acid and ethylene copolymer resin (Primacol 5980, manufactured by Dow Chemical Co., Ltd., acrylic acid content 20%, melt flow rate 300 g / 10 min), coaxially rotating meshed biaxial It is supplied at a rate of 300 parts by weight / hour from a hopper port of a screw extruder (Ikegai Iron Works PCM-30 / C = 20), kneaded at 180 ° C., and 20% from a supply port provided at an intermediate part of the extruder. Potassium hydroxide dissolved in the solution was added to pH 5 to pH 10 and continuously extruded. The extruded kneaded material such as resin was cooled to 90 ° C. with a jacketed static mixer and taken out. The taken-out kneaded material was dispersed in 700 parts by weight of ion-exchanged water to obtain an aqueous dispersion. The obtained aqueous dispersion had a nonvolatile content of 30%, pH of 10, a weight average particle diameter of 0.4 μm by light scattering measurement, and a yield of 99%.
本発明の水分散型組成物は、金属同士、ポリオレフィン同士、あるいは金属とポリオレフィンとの接着剤やヒートシール剤として、塗膜の粘着性がなく、優れた接着性能および密着性能を示す。このため、特にＰＴＰ包装用接着剤、ラミネート用接着剤、塗料用原料またはプライマー原料としても有効に使用できる。 The water-dispersed composition of the present invention exhibits excellent adhesion performance and adhesion performance without adhesiveness of a coating film as an adhesive or heat sealant between metals, between polyolefins, or between metal and polyolefin. For this reason, it can be effectively used particularly as an adhesive for PTP packaging, an adhesive for laminating, a raw material for coating, or a raw material for primer.
Claims (8)
The laminated body in which the composition for water-dispersed heat-sealing agents as described in any one of Claims 1-6 was apply | coated between two selected from aluminum foil, copper foil, and a polyolefin-type film.
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