公开(公告)号：DE102004023770A1

公开(公告)日：2005-12-01

申请号：DE102004023770

申请日：2004-05-11

Applicant: BASF AG

Inventor： JAHNCKE MANFRED ,  BIERSTEDT DIETER ,  KLANKE ANKE ,  SCHUETTE CHRISTIN

IPC: C08G18/10 ,  C08J9/14 ,  C08J9/34 ,  C08L75/04 ,  C08G18/76

Abstract: Preparation of viscoelastic polyurethane (PU) - soft integral foam materials (I) comprises: reaction of polyisocyanate (A) with compounds (B) of at least two isocyanate group reactive hydrogen in the presence of propellants (C), where (A) is diphenylmethanediisocyanate and/or its conversion products and/or mixtures from (A) of polymethylene polyphenyl polyisocyanate and (C) is at least a physical propellant. An independent claim is also included for (I), prepared by the method.