PURPOSE: To obtain a composition capable of stably giving a molded article having high rigidity and dimensional stability in addition to high heat-resistance and strength, by compounding a heat-meltable polyimide with an aromatic polycarboxylic acid ester and glass fiber treated with a specific silane-treating agent.
CONSTITUTION: The objective composition can be produced by compounding (A) 100pts.(wt.) of a heat-meltable polyimide having the recurring unit of formula I (Ar is group of formula II; Ar1 is bivalent phenol residue; Ar2 is aminophenol residue; Ar3 is aromatic tetracarboxylic acid residue; l is an average value of integers having uniform distribution between 0 and 50 and is 0.5W20) with (B) 0.002W2pts. of an aromatic polycarboxylic acid ester and (C) 5W50wt% (based on the whole composition) glass fibers surface-treated with a silane- treating agent of formula III (R1 and R2 are 1W4C alkyl; n is 1W8; X is 1, 2 or 3).
KUROSAWA HAYASHI
MATSUKI KUNIO
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