MELT-STABLE POLY(ARYLENE THIOETHER-KETANE) PREPREGS AND MOLDED OR FORMED PRODUCTS THEREOF

摘要

Disclosed herein is a melt-stable poly(arylene thioether-ketone) prepreg, which comprises in integral combination (A) 20-90 wt.% of a fibrous reinforcing material which comprises long fibers and/or at least one shaped long fiber body, said fibers and/or body being formed of inorganic fibers and/or organic fibers; and (B) 10-80 wt.% of a a thermoplastic matrix material composed principally of a melt-stable poly(arylene thioether-ketone) having predominant recurring units of the formula and having a melting point, Tm of 310-380 DEG C, a residual melt crystallization enthalpy, DELTA Hmc (420 DEG C/10 min) of at least 10 J/g, a melt crystallization temperature, Tmc (420 DEG C/10 min) of at least 210 DEG C and a reduced viscosity of 0.2-2 d l /g. A melt-stable molded or formed product can also be obtained by shaping the above prepreg or an arrangement or laminate of prepregs of the same type as the above prepreg at 140-450 DEG C under stresses.