Stabilization of halogenated polyols for polyurethane production
    6.
    发明授权
    Stabilization of halogenated polyols for polyurethane production 失效
    用于聚氨酯生产的卤化多元醇的稳定化

    公开(公告)号:US4239642A

    公开(公告)日:1980-12-16

    申请号:US53441

    申请日:1979-06-29

    摘要: The storage stability of otherwise unstable premix compositions for flame retardant rigid polyurethane foams containing in the premix a chlorinated polyether polyol and a tertiary amine catalyst, is enhanced by incorporation into the premix of a minor amount of a vinyl monomer. The preferred vinyl monomers employed are condensation products of acrylic or methacrylic acid with alcohols or amines. Such stabilization prevents premature deactivation of the tertiary amine catalysts contained in the premix.

    摘要翻译: 在预混合氯化聚醚多元醇和叔胺催化剂中含有的阻燃硬质聚氨酯泡沫塑料的其它不稳定的预混物组合物的储存稳定性通过掺入少量乙烯基单体的预混物而增强。 所用的优选的乙烯基单体是丙烯酸或甲基丙烯酸与醇或胺的缩合产物。 这种稳定化防止预混物中所含的叔胺催化剂的过早失活。