Container for retort packaging, resin composition, and gas-barri

Details Container for retort packaging, resin composition, and gas-barri Container for retort packaging, resin composition, and gas-barri

1999-11-10

2000-11-07

Acquah, Samuel A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

524 27, 524 47, 524 56, 524 58, 524401, 525 5424, 525 5426, 525 55, 525 56, 525 57, 525 58, 525933, 428 357, 428500, B29D 2200, C08L 300

Patent

active

061433845

ABSTRACT:
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.

REFERENCES:
patent: 2169250 (1939-08-01), Izard
patent: 4919984 (1990-04-01), Maruhashi et al.
patent: 5498662 (1996-03-01), Tanaka et al.
patent: 5552479 (1996-09-01), Tanaka et al.
patent: 5560988 (1996-10-01), Oba et al.
patent: 5574096 (1996-11-01), Tanaka et al.
patent: 5621026 (1997-04-01), Tanaka et al.

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