Stock material or miscellaneous articles – Composite – Of polyamidoester
Patent
1998-06-04
2000-08-22
Niland, Patrick D.
Stock material or miscellaneous articles
Composite
Of polyamidoester
4273722, 4273855, 428 348, 428 354, 428 367, 4284235, 4284237, B32B 2700, B32B 2740, A22C 1300, B29D 2200, B29D 2300
Patent
active
061069507
ABSTRACT:
The present invention relates to oxygen barrier film structures and a method of using thereof. More particularly, the invention relates to oxygen barrier film structures comprising at least one substrate, a primer layer on at least one surface of the substrate, said primer comprising a mixture of at least one aqueous dispersion of polyurethane (A) and at least one water dispersible crosslinking agent (B); an oxygen and moisture resistant barrier coating onto said primer treated surface of the polymeric substrate; said coating comprising a mixture of at least one aqueous polyvinyl alcohol or its copolymers (C) and at least one crosslinking agent (D). Improved adhesion properties of the barrier coating on substrates such as polyolefin, polyester and polyamide are obtained.
REFERENCES:
patent: 4214039 (1980-07-01), Steiner et al.
patent: 4927689 (1990-05-01), Markiewicz
patent: 5230963 (1993-07-01), Knoerzer
patent: 5512338 (1996-04-01), Bianchini et al.
Copping Craig P.
Jannusch Leonard C.
Rolando Thomas E.
Searle Brenda C.
Voss Peter A.
H. B. Fuller Licesing & Financing Inc.
Niland Patrick D.
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