WEAR RESISTANT POLY(ARYL ETHER KETONE)/POLYIMIDE BLENDS

摘要

Blends comprising (A.) at least one poly(aryl) ether ketone), and (B.) at least one polyimide having repeating units of the formula (I) wherein R1 is a substituted or unsubstituted tetravalent radical having benzenoid unsaturation, and R2 is a substituted or unsubstituted divalent group having aromatic unsaturation which is essentially free of (i) backbone ether oxygen bonded directly to the aromatic ring forming an imide linkage and (ii) amide linkages bonded through carboxyl groups bonded to the aromatic ring forming an imide linkage. The blends exhibit good melt processability and wear resistance greater than the individual blend components.