Aromatic polyether sulfone used as a prime coat for a fluorinate

Details Aromatic polyether sulfone used as a prime coat for a fluorinate Aromatic polyether sulfone used as a prime coat for a fluorinate

1979-04-26

1980-10-14

Cannon, J. C.

Stock material or miscellaneous articles

Composite

Of polyisocyanurate

427195, 427202, 427409, 4273741, B05D 136, B05D 302, B05D 508, B32B 2708

Patent

active

042282195

ABSTRACT:
A method of coating a substrate surface, which method comprises: (a) applying a primer composition to the substrate surface which primer composition comprises thermoplastic polymer material dispersed in an inert liquid diluent, at least 50% by weight of said theroplastic polymeric material being constituted by at least one thermoplastic aromatic polyethersulphone; (b) before the applied primer composition has become touch-dry, applying a dispersion of a tetrafluoroethylene polymer top-coat material in an inert liquid diluent over the coated substrate; and (c) removing the inert liquid diluent or diluents and sintering the combined coating of the primer and top-coat layers. The primer compositions do not in the claimed method, need to be dried and baked to exert an effective priming action.

REFERENCES:
patent: 3981945 (1976-09-01), Altwood et al.
patent: 3993843 (1976-11-01), Vasta
patent: 4131711 (1978-12-01), Altwood
patent: 4157273 (1979-06-01), Brody

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