Patent ID: 6258464
Filing Date: 2001-07-10
Classification: B32B,C08K,C08L,Y10T

Abstract:
A multilayered structure which comprises at least three layers comprising:a first layer (1) made of a resin composition comprising:a polyolefin (A);a saponified product (B) of an ethylene-vinyl ester copolymer having an ethylene content of from 10 to 70 mole %, a saponification degree of the vinyl ester component of not less than 80%, and a melting point of from 125.degree. C. to 220.degree. C.; andan olefin-unsaturated dicarboxylic anhydride-unsaturated carboxylic ester or vinyl ester telpolymer (C), with the proviso that (A) is not identical to (B) or (C), wherein the following formulas of (I) and (II) are satisfied:1/99.ltoreq.weight of (B)/weight of (A).ltoreq.40/600.1/99.ltoreq.X.ltoreq.20/80wherein X=weight of (C)/total weight of (A) and (B);a second layer (2) made of a saponified product of ethylene-vinyl ester copolymer having an ethylene content of 10 to 70 mole % and a saponification degree of the vinyl ester component of not less than 90%; anda third layer (3) made of a polymer obtained by grafting an unsaturated carboxylic acid or anhydride thereof to an olefin polymer, wherein the third layer (3) is positioned between the first layer (1) and the second layer (2).