公开(公告)号：DE4034046A1

公开(公告)日：1992-04-30

申请号：DE4034046

申请日：1990-10-26

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER DR ,  ZSCHIESCHE RUTH DR ,  GABBERT HANS-JUERGEN DR ,  HAASE VOLKER ,  FIMMEL F KARL

IPC: C08L75/04 ,  C08G18/38 ,  C08G18/48 ,  C08G18/65 ,  C08K3/04 ,  C08K3/32 ,  C08K5/3492 ,  C08K13/02

Abstract: The invention relates to a process for the production of flame-resistant soft polyurethane foams which evolve less smoke in the event of fire, by reacting a) organic polyisocyanates and/or modified organic polyisocyanates with b) relatively high-molecular-weight compounds containing at least two reactive hydrogen atoms, and optionally c) chain extenders and/or crosslinking agents, in the presence of d) a mixture of flameproofing agents which contains: di) melamine, dii) expandable graphite and optionally diii) at least one additional other flameproofing agent, preferably a modified or unmodified ammonium polyphosphate, e) blowing agents, f) catalysts, and optionally g) assistants and/or additives, and melamine/expandable graphite/polyether-polyol dispersions which are suitable for this purpose.