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    • 32. 发明申请
    • Cationically modified, anionic polyurethane dispersions
    • 阳离子改性阴离子聚氨酯分散体
    • US20050153865A1
    • 2005-07-14
    • US10508843
    • 2003-04-07
    • Jürgen DeteringKarl Haberle
    • Jürgen DeteringKarl Haberle
    • C08G18/08C08L75/04C08L79/00C11D3/37
    • C11D3/3726C08G18/0819C08L75/04C08L79/00C08L2666/20
    • The invention describes cationically modified particulate anionic polyurethanes having a particle size from 10 nm to 10 μm, the particulate polyurethanes being cationically modified through surface coating with cationic polymers. Preferred cationic polymers are polymers containing vinylamine units, polymers containing vinylimidazole units, polymers containing quaternary vinylimidazole units, condensates of imidazole and epichlorohydrin, crosslinked polyamidoamines, ethyleneimine-grafted crosslinked polyamidoamines, polyethyleneimines, alkoxylated polyethyleneimines, crosslinked polyethyleneimines, amidated polyethyleneimines, alkylated polyethyleneimines, polyamines, amine-epichlorohydrin polycondensates, alkoxylated polyamines, polyallylamines, polydimethyldiallylammonium chlorides, polymers containing basic (meth)acrylamide or (meth)acrylic ester units, polymers containing basic quaternary (meth)acrylamide or (meth)acrylic ester units, and/or lysine condensates.
    • 本发明描述了具有10nm至10μm的粒度的阳离子改性的颗粒状阴离子聚氨酯,通过用阳离子聚合物进行表面涂覆,使该颗粒聚氨酯阳离子改性。 优选的阳离子聚合物是含有乙烯基胺单元的聚合物,含有乙烯基咪唑单元的聚合物,含有季烯基咪唑单元的聚合物,咪唑和表氯醇的缩合物,交联的聚酰胺胺,乙烯亚胺接枝的交联聚酰胺胺,聚乙烯亚胺,烷氧基化聚乙烯亚胺,交联的聚乙烯亚胺,酰胺化聚乙烯亚胺,烷基化聚乙烯亚胺, ,胺 - 表氯醇缩聚物,烷氧基化多胺,聚烯丙基胺,聚二甲基二烯丙基氯化铵,含碱性(甲基)丙烯酰胺或(甲基)丙烯酸酯单元的聚合物,含碱性季(甲基)丙烯酰胺或(甲基)丙烯酸酯单元的聚合物和/或赖氨酸缩合物 。