Polyurethanes
    16.
    发明授权
    Polyurethanes 失效
    聚氨酯

    公开(公告)号:US5985985A

    公开(公告)日:1999-11-16

    申请号:US882732

    申请日:1997-06-26

    摘要: Polyurethanes I obtained by reacting1) an isocyanate II as defined in the specification with2) a compound V which is suitable as chain extender, obtained bya) reacting a polyhydric alcohol VI withb1) a compound VII, which includes an epoxy function and, in addition, an alcohol-reactive functional group, to form a compound VIII, and reacting a compound VIII with an .alpha.,.beta.-olefinically unsaturated carboxylic acid IX to give a compound X orb2) an .alpha.,.beta.-olefinically unsaturated carboxylic acid IX, to give a compound X andc) reacting a compound X with an amine XI having at least one primary amino which is reactive toward the .alpha.,.beta. multiple bond of IX,the sum of the number of isocyanato-reactive aminos and hydroxyls of the compound V being greater than the number of isocyanate groups of the compound II. The polyurethanes are useful as binders or binder components for pigment0free or pigment-containing coatings.

    摘要翻译: 通过使1)本说明书中定义的异氰酸酯II与2)适用作扩链剂的化合物V反应获得的聚氨酯I,其通过以下步骤获得:a)使多元醇VI与b1)包含环氧官能团的化合物VII和 另外,醇反应性官能团,以形成化合物VIII,并使化合物VIII与α,β-烯属不饱和羧酸IX反应得到化合物X或b2)α,β-烯属不饱和羧酸 IX,得到化合物X和c)使化合物X与具有至少一个对IX的α,β多重键具有反应性的伯氨基的胺XI反应,异氰酸酯基反应性氨基和数目的羟基与 化合物V大于化合物II的异氰酸酯基数。 聚氨酯可用作无颜料或含颜料的涂料的粘合剂或粘合剂组分。