PROCESS FOR PRESSURE SINTERING POLYMERIC COMPOSITIONS

摘要

A process for heat treating polymeric compositions into a shaped article comprising the steps of: a. placing a polymeric composition into a molding means; b. adding a compactible material to the molding means to surround the polymeric composition; c. pressuring the molding means containing the polymeric composition to force its particles into intimate contact with the compactible material, and clamping the molding means so as to maintain the pressurized state; d. heat treating the pressurized molding means containing the polymeric composition to form a densified, shaped article; and e. releasing the pressure on the molding means and removing the heat treated, shaped article.