公开(公告)号：DE2450788A1

公开(公告)日：1976-05-06

申请号：DE2450788

申请日：1974-10-25

Applicant: BASF AG

Inventor： ZAHN ERWIN DIPL CHEM DR ,  CORDES CLAUS DIPL CHEM DR ,  SIMON GEORG NIKOLAUS DIPL ING ,  WEISS HANS-PETER DIPL CHEM DR

IPC: C08L77/00 ,  C08K5/10 ,  C08L77/02

公开(公告)号：DE2500181A1

公开(公告)日：1976-07-08

申请号：DE2500181

申请日：1975-01-03

Applicant: BASF AG

Inventor： CORDES CLAUS DIPL CHEM DR ,  STRICKLE ERICH ING GRAD ,  ZENDATH JOSEF ING GRAD ,  SIMON GEORG NIKOLAUS DIPL ING

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/18 ,  C08J9/00 ,  C08J9/04

Abstract: A process for the manufacture of polyamide foams by anionic polymerization of lactams, in which from 0.1 to 15% w/w tetrachloroethylene is added to the reaction mixture to be foamed. The resulting foams are very tough, even at low temperatures.