Gas-barrier coated films, sheets or foils and method of preparat

Details Gas-barrier coated films, sheets or foils and method of preparat Gas-barrier coated films, sheets or foils and method of preparat

1977-12-16

1979-12-25

Silverman, Stanley S.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

427248B, 427248H, 428458, 428474, 428476, 428910, 428911, 428913, 528288, B32B 2734, B32B 2728, B32B 2736, B32B 2708

Patent

active

041806140

ABSTRACT:
Films, sheets or foils are given a gas-barrier coating of an aromatic polyamide, polyimide, polyamide-imide, polyhydrazide, polyamide-hydrazide, or polyazomethine by direct vapor-phase condensation polymerization of their respective monomers. The monomers are introduced in an inert diluent gas, mixed and reacted in the presence of the surface to be coated. The surface is maintained above the critical minimum deposition temperature of the monomers but below about 300.degree. C. The coating is formed to a thickness between about 0.1 and 0.6 mil.

REFERENCES:
patent: 3686022 (1972-08-01), White et al.
patent: 3829324 (1974-08-01), Blais et al.
patent: 3843481 (1974-10-01), Hoheisel
patent: 4009153 (1977-02-01), Shin

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