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    • 9. 发明申请
    • POLYURETHANE RESIN WITH HIGH CARBONATE GROUP CONTENT
    • 聚碳酸酯树脂与高碳酸酯组含量
    • WO2012069414A1
    • 2012-05-31
    • PCT/EP2011/070559
    • 2011-11-21
    • BAYER MATERIALSCIENCE AGSCHRINNER, Marc ClaudiusKLIPPERT, UweGEWIß, Heinz-DietmarMELCHIORS, Martin
    • SCHRINNER, Marc ClaudiusKLIPPERT, UweGEWIß, Heinz-DietmarMELCHIORS, Martin
    • C08G18/08C08G18/10C08G18/44C08G18/66C08G18/72
    • C08G18/6659C08G18/0823C08G18/0828C08G18/10C08G18/44C08G18/722
    • A water-dispersable polyurethane resin is obtained by reacting: at least one polycarbonate polyol; optionally, a polyester polyol which is different from the polycarbonate polyol; optionally, a low molecular weight compound containing two or more hydroxy and/or amino groups; optionally, a compound which is monofunctional in terms of reaction with NCO groups or which contains active hydrogen atoms differing in reactivity, these units being located in each case at the chain end of a polymer containing urethane groups; at least one compound containing at least two isocyanate-reactive groups and at least one group capable of forming anions; and a polyisocyanate component comprising ≥ 5 weight- % to ≤ 95 weight-% of hexamethylene diisocyanate and ≥ 5 weight- % to ≤ 95 weight- % of diisocyanatodicyclohexylmethane and/or isophorone diisocyanate, the total weight percentages amounting to ≤100 weight-%. The resultant polyurethane resin contains from 1.5% to 25.0% by weight of incorporated carbonate groups -O(C=O)O-.
    • 水分散性聚氨酯树脂通过使至少一种聚碳酸酯多元醇: 任选地,与聚碳酸酯多元醇不同的聚酯多元醇; 任选地,含有两个或多个羟基和/或氨基的低分子量化合物; 任选地,在与NCO基团反应或含有反应性不同的活性氢原子方面是单官能团的化合物,这些单元位于含有氨基甲酸酯基团的聚合物的链端上; 至少一种含有至少两个异氰酸酯反应性基团和至少一个能够形成阴离子的基团的化合物; 和包含= 5重量%至95重量%的六亚甲基二异氰酸酯和= 5重量%至= 95重量%的二异氰酸根合二环己基甲烷和/或异佛尔酮二异氰酸酯的多异氰酸酯组分,总重量百分数为= 100重量% 。 所得聚氨酯树脂含有1.5%至25.0%重量的碳酸酯基-O(C = O)O-。