NON-STICK POWDER COATING.

摘要

The present invention comprises a process for coating a substrate with a coating comprising a fluoropolymer. The process comprises the sequential steps of: a. Preparing a solid mixture comprising one or more fluoropolymers and one or more thermoplastic polymers thermally stable at temperatures in excess of 4000 C; b. Melt blending and extruding the solid mixture at a temperature of from about 2500 C to about 4000 C to achieve homogeneity; c. Subjecting the extrudate to mechanical means to obtain a powder of up to about 100 microns average particle size; d. Applying the powder onto the substrate; and e. Heating the substrate to a temperature sufficient to cause the powder to become sufficiently fluid to coat the substrate.