Gas barrier film and production process thereof

Details Gas barrier film and production process thereof Gas barrier film and production process thereof

1994-10-18

1996-03-12

Jagannathan, Vasu S.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 5426, 524 52, 524 56, 524 58, 524 27, 528503, C08L 300, C08L 500, C08L 3302

Patent

active

054986621

ABSTRACT:
Disclosed herein is a gas barrier film formed from a mixture containing (A) at least one poly(meth)acrylic acid polymer selected from the group consisting of poly(meth)acrylic acid and partially neutralized products of poly(meth)acrylic acid and (B) a saccharide in a weight ratio of 95:5 to 20:80, and having an oxygen gas permeability coefficient of 5.00.times.10.sup.-3 ml(STP).cm/m.sup.2.h. atm {Pa} or lower as measured under conditions of 30.degree. C. and 80% relative humidity. A production process of the gas barrier film, in which a film is formed from the mixture, and then subjected to a heat treatment under specific conditions, is also disclosed.

REFERENCES:
patent: 2169250 (1939-08-01), Izard
patent: 4113854 (1978-09-01), Andrews
patent: 5013769 (1991-05-01), Murray
patent: 5095054 (1992-03-01), Lay

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