Polycaprolactam with novel chain regulation

摘要

PCT No. PCT/EP96/04279 Sec. 371 Date Aug. 25, 1997 Sec. 102(e) Date Aug. 25, 1997 PCT Filed Sep. 30, 1996 PCT Pub. No. WO97/13800 PCT Pub. Date Apr. 17, 1997The invention is directed to a hydrolytically polymerized polycaprolactam with new chain regulation, whereby the polymerization of caprolactam (I) is carried out with 0.1-0.7 weight percent of an aromatic dicarboxylic acid (II), 0.01-0.7 weight percent of an aliphatic or cycloaliphatic diamine (III) that carries a primary and a tertiary amino group, and/or 0.01-0.7 weight percent 4-amino-2,2,6,6-tetraalkyl piperidine (IV), whereby the quantities of constituents I through IV add up to 100 weight percent and the quantity of the constituents III and/or IV amounts to 0.01-0.7 weight percent.