Branched poly(trimethylene ether) polyols
    5.
    发明授权
    Branched poly(trimethylene ether) polyols 有权
    支链聚(三亚甲基醚)多元醇

    公开(公告)号:US08946485B2

    公开(公告)日:2015-02-03

    申请号:US13220030

    申请日:2011-08-29

    IPC分类号: C07C43/178 C07C43/15

    摘要: Disclosed is branched poly(trimethylene ether) polyols prepared from the acid catalyzed polycondensation reaction of 1,3-propanediol, and at least one triol comonomer selected from 1,1,1-tris(hydroxymethyl)ethane and 1,1,1-tris(hydroxymethyl)propane. Also disclosed is a branched poly(trimethylene ether) polyol with an equivalent hydroxyl functionality of about 2.1 to about 3.2 and a Mn of about 200 to about 6000. The polyols are useful in the preparation of polyurethane rigid and flexible foams.

    摘要翻译: 公开了由1,3-丙二醇的酸催化缩聚反应制备的支链聚(三亚甲基醚)多元醇和至少一种选自1,1,1-三(羟甲基)乙烷和1,1,1-三 (羟甲基)丙烷。 还公开了具有约2.1至约3.2的当量羟基官能度和约200至约6000的Mn的支化聚(三亚甲基醚)多元醇。多元醇可用于制备聚氨酯刚性和柔性泡沫体。