Hydrochlorofluorocarbon blown rigid polyurethane foams and their preparation
    2.
    发明公开
    Hydrochlorofluorocarbon blown rigid polyurethane foams and their preparation 失效
    Polyurethanharz sowie dessen Verwendung。

    公开(公告)号:EP0397378A1

    公开(公告)日:1990-11-14

    申请号:EP90304752.0

    申请日:1990-05-02

    摘要: The present invention relates to a novel polyurethane resin, a foam prepared from the resin, a preparation process of the foam, and preparation process of a rigid polyurethane foam composite having a face material. The primary object of the present invention is to provide a rigid polyurethane foam and a rigid polyurethane foam composite fitted with a face material which are prepared by using a hydrochlorofluorocarbon foaming agent having very low public hazards such as ozone layer destruction and green house phenomenon of the earth.
    The above object can be achieved by using a combination of a polyether polyol initiated from a phenol resin with an alkanolamine or an aliphatic polyhydroxy compound in the production of rigid polyurethane foams.
    Foams thus obtained have equivalent properties of those of foams obtained by using chloroflourocarbons(CFC) which are conventional foaming agents.

    摘要翻译: 本发明涉及一种新型聚氨酯树脂,由树脂制备的泡沫,泡沫的制备方法以及具有面材的硬质聚氨酯泡沫复合材料的制备方法。 本发明的主要目的是提供一种硬质聚氨酯泡沫塑料和硬质聚氨酯泡沫复合材料,其中装有面材,其通过使用具有非常低的公共危害的氢氯氟烃发泡剂制备,例如臭氧层破坏和温室现象 地球。 上述目的可以通过使用由酚醛树脂引发的聚醚多元醇与链烷醇胺或脂肪族多羟基化合物在刚性聚氨酯泡沫塑料的生产中的组合来实现。 由此获得的泡沫具有与通过使用作为常规发泡剂的氯化碳(CFC)获得的泡沫相同的性质。