Aqueous polymer compositions
    13.
    发明申请
    Aqueous polymer compositions 审中-公开
    水性聚合物组合物

    公开(公告)号:US20060258801A1

    公开(公告)日:2006-11-16

    申请号:US10570163

    申请日:2004-07-26

    IPC分类号: C08G18/08 C08K3/20

    摘要: An aqueous coating composition comprising: (i) (10) to (80) wt % of a polyurethane A which exhibits a minimum film forming temperature of ≦ambient temperature and which comprises a polyurethane obtained by the reaction of: (a) an isocyanate-terminated pre-polymer formed from components which comprise: (1) 10 to 30 wt % of a polyisocyanate; (2) 0.1 to 10 wt % of a polyol of weight average molecular weight less than 500, containing ionic or potentially ionic water-dispersing groups, and having two or more isocyanate-reactive groups; (3) 0 to 15 wt % of a polyol containing non-ionic water dispersing groups having two or more isocyanate-reactive groups; (4) 40 to 80 wt % of a polyol other than (2) or (3), having two or more isocyanate-reactive groups; where (1), (2), (3) and (4) add up to 100%; and (b) an active-hydrogen chain extending compound; and (ii) 20 to 90 wt % of a polymer dispersion B which exhibits a minimum film forming temperature of above ambient temperature; wherein (i) and (ii) add up to 100%. Processes for manufacture of said composition and methods of application to substrates are also described.

    摘要翻译: 一种水性涂料组合物,其包含:(i)(10) - (80)wt%的聚氨酯A,其表现出最小成膜温度<=环境温度,并且其包含通过以下反应获得的聚氨酯:(a)异氰酸酯 由包含以下组分的组分形成的终止预聚物:(1)10至30重量%的多异氰酸酯; (2)0.1〜10重量%的重均分子量小于500的多元醇,其含有离子或潜在离子性水分散基团,并且具有两个或多个异氰酸酯反应性基团; (3)含有2个以上异氰酸酯反应性基团的非离子性水分散基团的多元醇0〜15重量% (4)40〜80重量%的具有2个以上异氰酸酯反应性基团的(2)或(3)以外的多元醇; 其中(1),(2),(3)和(4)加起来为100%; 和(b)活性氢链增长化合物; 和(ii)20〜90重量%的表现出最高成膜温度高于环境温度的聚合物分散体B; 其中(i)和(ii)加起来为100%。 还描述了用于制造所述组合物的方法和施加于基材的方法。