POLYAMIDE COPOLYMER CONSISTING OF A LACTAM AND GRAFT COPOLYMER OF MALEIC ANHYDRIDE ON A DIENE POLYMER BASE

摘要

Polyamides such as nylon-6 type polyamides are prepared by the reaction or copolymerization of a major amount by weight of a lactam and a minor amount by weight of a graft copolymer of maleic anhydride on a low molecular weight liquid conjugated diene polymer or copolymer or of a copolymer of a conjugated diene and a monovinyl aryl monomer or a nitrile. These polyamides have improved impact strength and water resistance.