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1. 发明授权

US06284836B1 Aqueous polyurethane dispersions 有权
标题翻译：水性聚氨酯分散体
公开(公告)号：US06284836B1
公开(公告)日：2001-09-04
申请号：US09411096
申请日：1999-10-04
申请人： Tillmann Hassel , Juergen Meixner , Thomas Muenzmay , Juergen Reiners , Jörg Schoob
发明人： Tillmann Hassel , Juergen Meixner , Thomas Muenzmay , Juergen Reiners , Jörg Schoob
IPC分类号： C08J300
CPC分类号： C14C11/006 , C08G18/0823 , C08G18/12 , C08G18/4018 , C08G18/4277 , C08G18/4854 , C08G18/6625 , C08G18/706 , C09D175/04 , Y10T428/31551 , C08G18/302 , C08G18/3275
摘要： Aqueous polyurethane dispersions containing a polyurethane, composed of a) at least one polyol having an average molecular weight, determined as the number average, of 500-6000 g/mol, preferably 1000 to 4000, in particular 1500 to 3000 g/mol, b) at least one polyol, preferably diol, having a molecular weight of less than 500 g/mol, preferably of 61 to 499 g/mol, c) at least one aliphatic polyisocyanate, preferably diisocyanate, d) at least one diol having a molecular weight of less than 450 g/mol, which carries one or more ionic groups and/or one or more potentially ionic groups, preferably at least one carboxyl group, e) at least one amine which is reactive towards NCO groups, carries hydroxyl groups and has an OH functionality of 1 to 6, f) water and optionally g) a monoalcohol, characterized in that the molar ratio of polyol of the component a) to the sum of the polyols b) and d) is 1:1.5 to 1:4, preferably 1:2 to 1:3, the molar ratio of the sum of the polyols a), b) and d) to the polyisocyanate c) is 1:1.1 to 1:2.5, preferably 1:1.2 to 1:1.7, the OH functionality of the polyurethane being 2 to 6, preferably 2 to 4, and the average molecular weight, determined as the number average, of the polyurethane being less than 15,000, preferably from 2500 to 10,000, in particular from 3000 to 7000, g/mol.
摘要翻译：含有聚氨酯的水性聚氨酯分散体由以下组成：a）至少一种数均分子量为500-6000g / mol，优选1000-4000，特别是1500-3000g / mol的平均分子量的多元醇，b）至少一种分子量小于500g / mol，优选61至499g / mol的多元醇，优选二醇，c）至少一种脂族多异氰酸酯，优选二异氰酸酯，d）至少一种具有分子量的二醇其携带一个或多个离子基团和/或一个或多个潜在的离子基团，优选至少一个羧基，e）至少一个对NCO基团具有反应性的胺，其携带羟基并具有 1至6的OH官能团，f）水和任选地g）一元醇，其特征在于组分a）的多元醇与多元醇b）和d）之和的摩尔比为1:1.5至1:4，优选1:2至1:3，多元醇a），b）和d）之和与多异氰酸酯的摩尔比苯甲酸酯c）为1：1.1至1：2.5，优选1：1.2至1：1.7，聚氨酯的OH官能度为2至6，优选2至4，平均分子量为数均分子量聚氨酯小于15,000，优选2500至10,000，特别是3000至7000g / mol。

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