A shaped article composed of a substrate of an EVA copolymer and a coating of a paint containing an NCO-free radical bonded firmly to the substrate, said substrate being either (A) a shaped article of EVA copolymer having a vinyl acetate content of about 3 to about 35% by weight, the article having
A shaped article composed of a substrate of an EVA copolymer and a coating of a paint containing an NCO-free radical bonded firmly to the substrate, said substrate being either (A) a shaped article of EVA copolymer having a vinyl acetate content of about 3 to about 35% by weight, the article having a coating on its surface formed from a solution of a resin selected from specified resins (a1), (a2), (a3) and (a4), (B) a shaped article of a blend of EVA copolymer having the vinyl acetate content as defined above with a resin selected from specified resins (b1), (b2), (b3) and (b4), (B′) a shaped article of a graft copolymer of EVA having the vinyl acetate content as defined above, and grafted thereto, at least one specified monomer, or (B″) a shaped article resulting from the saponification of the surface of a shaped article of EVA copolymer having the vinyl acetate content as defined above.
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A shape article comprising a substrate substantially of an ethylene-vinyl acetate copolymer and formed on its surface, (C) a coating having an elongation of at least 10% formed from a synthetic resin paint containing an NCO-free radical; said substrate being either (A) a shaped article of an ethylen
A shape article comprising a substrate substantially of an ethylene-vinyl acetate copolymer and formed on its surface, (C) a coating having an elongation of at least 10% formed from a synthetic resin paint containing an NCO-free radical; said substrate being either (A) a shaped article of an ethylene-vinyl acetate copolymer having a vinyl acetate content of about 3 to about 35% by weight, said shaped article having a coating on its surface formed from a solution of a resin selected from the group consisting of (a1) a partially saponified product having a degree of saponification of up to about 50% of an ethylene-vinyl acetate copolymer having a vinyl acetate content of about 12 to about 45% by weight, (a2) a graft copolymer of said partially saponified ethylene-vinyl acetate copolymer (a1) and a carboxyl-containing monomer grafted thereto, (a3) a graft copolymer of an ethylene-vinyl acetate copolymer having a vinyl acetate content of about 12 to about 45% by weight and grafted thereto, at least one monomer having a radical selected from the group consisting hydroxyl, carboxyl, acid anhydride, alkoxy and glycidyl radicals, and (a4) a copolymer of ethylene, an unsaturated ester and at least one monomer having a radical selected from the group consisting of hydroxyl, carboxyl, alkoxy and glycidyl radicals, said copolymer having an ethylene content of about 55 to about 88% by weight, (B) a shaped article of a blend of an ethylene-vinyl acetate copolymer having a vinyl acetate content of about 3 to about 35% by weight with a resin selected from the group consisting of (b1) about 5 to about 30 parts by weight, based on the blend, of a saponification product of an ethylene-vinyl acetate copolymer having a vinyl acetate content of about 5 to about 90% by weight, (b2) about 5 to about 30% by weight, based on the weight of the blend, of a copolymer of ethylene and at least one monomer having a radical selected from the group consisting of hydroxyl, carboxyl, alkoxy and glycidyl radicals, said copolymer having an ethylene content of about 70 to about 98%, (b3) about 2 to about 30% by weight, based on the blend, of a copolymer of ethylene, an unsaturated ester and at least one monomer having a radical selected from the group consisting of hydroxyl, carboxyl, alkoxy and glycidyl radicals, said copolymer having an ethylene content of about 55 to about 98% by weight, and (b4) about 0.5 to about 30% by weight, based on the blend, of a graft copolymer of a polymer of an aa45% by weight of another copolymerizable monomer, and grafted thereto, at least one monomer having a radical selected from the group consisting of hydroxyl, carboxyl, acid anhydride, alkoxy and glycidyl radicals, (B′) a shaped article of graft copolymer of an ethylene-vinyl acetate copolymer having a vinyl acetate content of about 3 to about 35% by weight, and grafted thereto, at least one monomer having a radical selected from the group consisting of hydroxyl, carboxyl, acid anhydride, alkoxy and glycidyl radicals, or (B″) a shaped article resulting from the saponification of the surface of a shaped article of an ethylene-vinyl acetate copolymer having a vinyl acetate content of 3 to 35% by weight.
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이 특허에 인용된 특허 (2)
Yamada ; Muneki ; Hirata ; Sadao ; Kishimoto ; Akira ; Hirata ; Shunsaku ; Suzuki ; Toru ; Kano ; Fumio, Packaging materials having excellent gas permeation resistance and process for preparation thereof.
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