Universal Primer for non-stick finish

Details Universal Primer for non-stick finish Universal Primer for non-stick finish

1994-10-31

1996-10-08

Sweet, Mark D.

Stock material or miscellaneous articles

Composite

Of fluorinated addition polymer from unsaturated monomers

428458, 428463, 428446, 428450, 428428, 428461, B32B 2700

Patent

active

055629911

ABSTRACT:
A primer layer for fluoropolymer non-stick coating is provided, which comprises a fluoropolymer such as PTFE, a polymer binder such as polyamic acid salt, and inorganic film hardener such as silicate compound, wherein the weight ratio of fluoropolymer to binder is 0.5 to 2.0:1 and the amount of film hardener is 5 to 30 wt % based on the weight of the baked composition. This primer layer adheres to a wide variety of smooth surfaces such as stainless steel and glass, and to the fluoropolymer overcoat on the primer layer, and provides durabilty to the coating.

REFERENCES:
patent: 3920793 (1975-11-01), Teti et al.
patent: 4087394 (1978-05-01), Concannon
patent: 4118537 (1978-10-01), Vary et al.
patent: 5079073 (1992-01-01), Tannenbaum
patent: 5106682 (1992-04-01), Matsushita et al.
patent: 5223343 (1993-06-01), Tannenbaum
patent: 5240775 (1993-08-01), Tannenbaum
patent: 5250356 (1993-10-01), Batzar

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