Process for making fluoropolymer finish composition

Details Process for making fluoropolymer finish composition Process for making fluoropolymer finish composition

1994-10-31

1995-12-26

Lusignan, Michael

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

4273884, 4273885, 427409, 428463, B32B 2700

Patent

active

054786517

ABSTRACT:
In the formation of a fluoropolymer non-stick layer on a substrate such as of cookware and bakeware, improved adhesion of the layer is obtained by co-grinding at least the polymer binder component with the pigment component. In an aqueous system, this co-grinding is carried out in water which contains a surfactant and the polymer binder is soluble in the water or water organic solvent mixture the resultant co-ground aqueous dispersion/solution is blended with aqueous dispersion of fluoropolymer to form the coating composition. Addition of inorganic filler film hardener to the co-grinding step also improves the scratch resistance of the of the non-stick layer.

REFERENCES:
patent: 4087394 (1978-05-01), Concannon
patent: 4118537 (1978-10-01), Vary et al.
patent: 4139576 (1979-02-01), Yoshimura et al.
patent: 4910086 (1990-03-01), Kawakami et al.
patent: 5168013 (1992-12-01), Tannebaum

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