THERMOPLASTIC POLYMER COATING COMPOSITION

摘要

Coating composition comprising (a) from 50 to 99% by weight of a thermoplastic aromatic polyether ketone and (b) from 50 to 1% by weight of a perfluoroalkoxy polymer or a tetrafluoroethylene/hexafluoropropylene copolymer having hexafluoropropylene content of from 18 to 25% by weight. Other additives can be present. The components are mixed and granulated or powdered.
The composition, when applied to, e.g. a steel plate, produces a coated film which is greatly improved in water repellency while retaining the desirable properties of the polyether ketone, including heat resistance, mechanical and electrical properties, and chemical resistance.