초록 ▼

A laminated article which comprises a layer (A) of a saponified ethylene－vinyl acetate copolymer resin having an ethylene content of 20-55% by mole and a degree of saponification of not less than 90% by mole; laminated with a layer (B) of a hydrophobic thermoplastic resin; through the medium of a la

A laminated article which comprises a layer (A) of a saponified ethylene－vinyl acetate copolymer resin having an ethylene content of 20-55% by mole and a degree of saponification of not less than 90% by mole; laminated with a layer (B) of a hydrophobic thermoplastic resin; through the medium of a layer (C) of an adhesive resin; said adhesive resin contains a polymer (X) comprising ethylene component－vinyl acetate component－ethylenically unsaturated carboxylic acid component or anhydride thereof－styrene type vinyl compound component, and a copolymer (Y) comprising ethylene component－vinyl acetate component, in an amount satisfying specific formulae, and the process for production thereof, which has a remarkably excellent adhesion between layers, as well as excellent mechanical characteristics and gas barrier properties, and is adapted to a container for foods and packaging material.

대표청구항 ▼

A laminated article which comprises a layer (A) of a saponified ethylene-vinyl acetate copolymer resin having an ethylene content of 20-55 % by mole and a degree of saponification of not less than 90 % by mole; laminated with a layer (B) of a hydrophobic thermoplastic resin; through the medium of a

A laminated article which comprises a layer (A) of a saponified ethylene-vinyl acetate copolymer resin having an ethylene content of 20-55 % by mole and a degree of saponification of not less than 90 % by mole; laminated with a layer (B) of a hydrophobic thermoplastic resin; through the medium of a layer (C) of an adhesive resin; said adhesive resin contains a polymer (X) comprising ethylene component-vinyl acetate component-ethylenically unsaturated carboxylic acid component or anhydride thereof-styrene type vinyl compound component, and a copolymer (Y) comprising ethylene component-vinyl acetate component, in an amount satisfying the following formulae (I), (II), (III), (IV) and (V) │VX-VY│≤0.30 (I) 0.15≤VXㆍWX+VYㆍWY≤0.45 (II) 0.01≤CXㆍWX≤1 (III) 1.0≤nㆍSX/CX≤2.0 (IV) 0.1≤WX/WY≤10 (V) wherein, VX: content of vinyl acetate in the polymer (X) (weight fraction) VY: content of vinyl acetate in the polymer (Y) (weight fraction) CX: content of carboxylic group of the ethylenically unsaturated carboxylic acid or anhydride component thereof in the polymer (X); (meq/g), SX: content of the styrene vinyl compound component in the polymer (X); (m.mole/g), WX: content of the polymer (X) (weight fraction), WY: content of the polymer (Y) (weight fraction), and n : number of carboxyl group contained in one molecule of the ethylenically unsaturated carboxylic acid or anhydride thereof.