公开(公告)号：WO1997010277A1

公开(公告)日：1997-03-20

申请号：PCT/US1996014683

申请日：1996-09-11

Applicant: OSI SPECIALTIES, INC.

Inventor： OSI SPECIALTIES, INC. ,  GERKIN, Richard, M. ,  HARAKAL, Mark, E. ,  LAWLER, Lee, F. ,  MILLER, Glenn, A.

IPC: C08G18/61

CPC classification number: C08J9/122 ,  C08J9/0061 ,  C08J2375/04 ,  C08J2483/00

Abstract: It has now been found that the use of inert gases as an auxiliary blowing agent in flexible polyurethane foams places unexpected requirements on the composition of the silicone surfactants used in such foams. Typical silicone polyalkylene oxide polyether copolymer comb-type surfactants containing greater than about 37 % ethylene oxide in the pendant polyether chains cause large cells when added inert gas is used as the blowing agent.

Abstract translation: 现在已经发现，在柔性聚氨酯泡沫中使用惰性气体作为辅助发泡剂使得对这种泡沫体中使用的硅氧烷表面活性剂的组成有意想不到的要求。 含有大于约37％环氧乙烷的典型的聚硅氧烷聚环氧烷聚醚共聚物梳型表面活性剂，当加入惰性气体作为发泡剂时，在侧链聚醚链中引起大量的细胞。