Melt processable fluorine-containing resin molding composition

Abstract

Abstract PURPOSE:To obtain titled composition capable of providing molded items in which the filler contained in uniformly dispersed without segregation, leading to uniform quality, by incorporating a fluorine-contg. resin with a flaky inorganic filler surface-treated, in advance, with a polyamic acid or its salt before treatment on heating. CONSTITUTION:The objective composition can be obtained by incorporating (A) a fluorine-contg. resin with (B) a flaky inorganic filler treated, in advance, with a solution of polyamic acid (or its salt) before treatment on heating. Said polyamic acid should be prepared by the reaction between m-phenylenediamine, etc. and pyromellitic anhydride, etc. As the polyamic acid salt, a tertiary amine salt derived from polyamic acid and a tertiary amine such as trimethylamine, triethylamine, etc. should be used. Furthermore, it is recommended that the surface treatment for the filler be conducted through immersion followed by drying, and the treatment on heating be carried out for several minutes-5hr at 150-300 deg.C during which the polyamic acid converts to polyimide.

Inventors

• 👤 Yoshihiro Hori
• 👤 堀　芳廣

Bibliographic Details