Patent ID: 6465536
Filing Date: 2002-10-15
Classification: C08G,C08J,D01F,Y10T

Abstract:
A process for preparing a partially acidified, hydrolyzed, internally plasticized polysuccinimide (PSI) composition comprising:i) reacting about 1 to 20% of the succinimide groups of a polysuccinimide polymer having a weight average molecular weight of at least about 20,000 Daltons with one or more monoamines to form an internally plasticized poly(imide-co-amide) intermediate; ii) hydrolyzing essentially all of the succinimide groups of the poly(imide-co-amide) intermediate of i) to form an internally plasticized polyamide; and iii) acidifying about 1 to 50% of the hydrolyzed succinimide groups of the polyamide of ii).