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    • 2. 发明授权
    • Aqueous two-component coating composition
    • 水性双组分涂料组合物
    • US5945476A
    • 1999-08-31
    • US58390
    • 1998-04-09
    • Richard R. RoeslerPoli YuLutz Schmalstieg
    • Richard R. RoeslerPoli YuLutz Schmalstieg
    • C08G18/28C08G18/70C09D175/04C09J175/04C08J3/00
    • C09D175/04C08G18/289C08G18/706
    • The present invention relates to aqueous two-component compositions containinga) compounds which are substantially free from isocyanate groups, have an alkoxysilane group content (calculated as Si, MW 28) of 1 to 6% by weight, based on the weight of the compounds, and contain sufficient chemically incorporated hydrophilic groups to form a stable dispersion with water, wherein the alkoxysilane groups are incorporated as the reaction products ofi) a polyisocyanate component having a minimum average functionality of 2.4 and containing at least 50% by weight of polyisocyanate adducts andii) compounds containing secondary amino groups and alkoxysilane groups, andb) polyhydroxy compounds containing ester and/or carbonate groups and having a urethane group content of less than 5% by weight, based on the weight of the polyhydroxy compounds.The present invention also relates to coatings, adhesives and sealants prepared from these aqueous compositions and to compounds a) containing urea and alkoxysilane groups.
    • 本发明涉及含水的双组分组合物,其含有:基于化合物的重量,基本上不含异氰酸酯基团的化合物具有1至6重量%的烷氧基硅烷基含量(以Si计,MW 28计) 并且含有足够的化学引入的亲水基团以与水形成稳定的分散体,其中所述烷氧基硅烷基团作为i)的反应产物并入,i)具有最小平均官能度为2.4且含有至少50重量%多异氰酸酯加合物的多异氰酸酯组分 和ii)含有仲氨基和烷氧基硅烷基团的化合物,以及b)含有基于多羟基化合物的重量的酯和/或碳酸酯基并且氨基甲酸酯基含量小于5重量%的多羟基化合物。 本发明还涉及由这些水性组合物制备的涂料,粘合剂和密封剂以及含脲和烷氧基硅烷基团的化合物a)。