Stock material or miscellaneous articles – Composite – Of metal
Patent
1986-03-21
1988-10-11
Robinson, Ellis P.
Stock material or miscellaneous articles
Composite
Of metal
4273722, 427384, 427404, 4274071, 428516, 428520, 428522, B32B 1508, B32B 2730, B32B 2732
Patent
active
047770945
ABSTRACT:
Polyolefinic films having improved impermeability characteristics to gases and vapors, said films being coated on either one or both its surfaces by a layer of a copolymer containing functional hydroxylic groups, functional acid carboxylic groups and optionally--esteric groups and obtained by hydrolysis of copolymers consisting of an unsaturated ester and of an unsaturated acid or corresponding anhydride.
REFERENCES:
patent: 3524905 (1970-08-01), Coates
patent: 3949135 (1976-04-01), Vercauteren
Cardaio Rino
Mauri Luigi
Moplefan S.p.A.
Robinson Ellis P.
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