초록 ▼

The present invention provides a container for retort packaging comprising a laminated film having an outermost layer comprising a layer formed of a cross-linked structure containing ester bonds between poly(meth)acrylic acid (A) and polyalcoholic polymer (B); a resin composition having at least the

The present invention provides a container for retort packaging comprising a laminated film having an outermost layer comprising a layer formed of a cross-linked structure containing ester bonds between poly(meth)acrylic acid (A) and polyalcoholic polymer (B); a resin composition having at least the chemical structures (X) [poly(meth)acrylic acid (A) residue], (Y) [poly(meth)acrylic acid (A)-polyalcoholic polymer (B) residue] and (Z) [metal cross-linked ionic residues], wherein the degree of esterification defined by the equation: degree of esterification=c/(b+c+d) is from 0.01 to 0.5 and the degree of ionization defined by the equation: degree of ionization=c/(b+c+d) is from 0.01 to 0.9 (wherein b, c and d represent the molar ratios of the carbon-oxygen double bond in the chemical structure of the resin composition; and a gas barrier film comprising the same.

대표청구항 ▼

[ We claim:] [1.] A resin composition having at least the chemical structures (X), (Y) and (Z) described below, wherein the degree of esterification defined by the equation (1) is from 0.01 to 0.5 and the degree of ionization defined by the equation (2) is from 0.01 to 0.9: [ STR 4 ] wherein R.sub.

[ We claim:] [1.] A resin composition having at least the chemical structures (X), (Y) and (Z) described below, wherein the degree of esterification defined by the equation (1) is from 0.01 to 0.5 and the degree of ionization defined by the equation (2) is from 0.01 to 0.9: [ STR 4 ] wherein R.sub. is H or CH.sub.3 ; [ STR 5 ] wherein R.sub.0 is H or CH.sub.3, and R.sup.1 is a residue of a polyalcoholic polymer; [ STR 6 ] wherein each R.sub.0 is independently H or CH.sub.3, Me.sup.n+ is a n-valent metal ion, and n is 2 or 3, and Me.sup.+1 is an alkali metal ion;EQU Degree of esterification=c/(b+c+d) (1) EQU Degree of ionization=d/(b+c+d) (2) rein b, c and d represent molar ratios of carbon-oxygen double bonds in the chemical structures (X), (Y) and (Z) plus (Z.sup.1), respectively, of the resin composition.