公开(公告)号：DE2964667D1

公开(公告)日：1983-03-10

申请号：DE2964667

申请日：1979-05-28

Applicant: BASF AG

Inventor： HORACEK HEINRICH DR ,  SCHOEN ERNST DR ,  REICH ERHARDT DR ,  VOLKERT OTTO DR

IPC: C08G18/00 ,  C08G18/16 ,  C08G18/18 ,  C08G18/22 ,  C08G18/72 ,  C08G18/73 ,  C08G18/75 ,  C08G18/78 ,  C08G18/80 ,  C08G18/14

Abstract: To prepare light-stable polyurethane integral skin foams, especially soft integral foams, aliphatic and/or cycloaliphatic polyisocyanates, both categories preferably containing urethane groups and/or biuret groups, are reacted with polyols in the presence of blowing agents and of a synergistic catalyst combination comprising an alkali metal hydroxide, alkali metal alcoholate, alkali metal phenolate, alkali metal salt of a weak acid and/or hexahydrotriazine derivative and an organic tin, zinc and/or iron(II) compound, in the presence or absence of assistants and adjuvants. The preferred catalyst combination is tri-(dimethylaminopropyl)-s-hexahydrotriazine and dibutyl-tin dilaurate.