Stock material or miscellaneous articles – Composite – Of polyamidoester
Patent
1996-01-11
1998-06-09
Warzel, Mark L.
Stock material or miscellaneous articles
Composite
Of polyamidoester
4284231, 4284242, 4284255, 428451, 428446, 428483, B32B 2706, B32B 2732
Patent
active
057630887
ABSTRACT:
An olefin resin-based article having good gas barrier properties is disclosed, comprising an .alpha.,.beta.-ethylenically unsaturated carboxylic acid-grafted polyolefin (e.g., maleic anhydride-grafted polypropylene) having formed thereon an inorganic oxide deposite film, wherein the grafted polyolefin has an unsaturated carboxylic acid unit concentration of from 0.01 to 10% by weight, with or without an anchor coat being provided between the grafted polyolefin and the inorganic oxide film. The article suffers from no reduction in gas barrier properties even when heat or stress is applied thereto and is therefore useful as a wrapping or packaging material in the production of pouch-packed foods and IC packages.
REFERENCES:
patent: 4440911 (1984-04-01), Inoue et al.
patent: 4506056 (1985-03-01), Gaylord
patent: 4528234 (1985-07-01), Kaiho et al.
patent: 4684553 (1987-08-01), Sasaki et al.
patent: 5279873 (1994-01-01), Oike
JP-A-58 110 242 (Toyo Ink Mfg. KK.) 24, Dec., 1981 *abstract*.
Egami Masayuki
Hattori Masafumi
Mayumi Junji
Mizuno Akira
Nakano Tomomi
Mitsubishi Chemical Corporation
Warzel Mark L.
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