Aqueous self-crosslinking copolymer dispersions, a process for preparing them and their use in binders for coating materials
    1.
    发明授权
    Aqueous self-crosslinking copolymer dispersions, a process for preparing them and their use in binders for coating materials 有权
    水性自交联共聚物分散体,其制备方法及其在涂料粘合剂中的应用

    公开(公告)号:US06515042B2

    公开(公告)日:2003-02-04

    申请号:US09419214

    申请日:1999-10-15

    IPC分类号: C09D15100

    摘要: Aqueous self-crosslinking copolymer dispersions ABC obtainable by free-radically initiated copolymerization in the first stage of a monomer mixture A comprising olefinically unsaturated monomers A1 having carbonyl groups, unsaturated carboxylic acids or monoesters of unsaturated dicarboxylic acids A2, monomers A3 selected from vinylaromatic compounds, n-butyl methacrylate and also alkyl esters of unsaturated carboxylic acids or dialkyl esters of unsaturated dicarboxylic acids, esters A4 selected from alkyl esters of unsaturated carboxylic acids of dialkyl esters of unsaturated dicarboxylic acids, and other free-radically polymerizable monomers A5, and subsequent addition of a second monomer mixture B and further polymerization in the second stage, the mixture B comprising olefinically unsaturated monomers B1 corresponding to A1, esters B2 corresponding to A4, and monomers B3 corresponding to A5, and subsequently adding compounds C having hydrazine or hydrazide groups.

    摘要翻译: 在单体混合物A的第一阶段中通过自由基引发共聚获得的水性自交联共聚物分散体ABC包含具有羰基的烯属不饱和单体A1,不饱和羧酸或不饱和二羧酸A2的单酯,选自乙烯基芳族化合物的单体A3, 甲基丙烯酸正丁酯以及不饱和羧酸的烷基酯或不饱和二羧酸的二烷基酯,选自不饱和二羧酸的二烷基酯的不饱和羧酸的烷基酯和其它可自由基聚合的单体A5的酯A4,以及随后的加成 的第二单体混合物B和在第二阶段进一步聚合,混合物B包含对应于A1的烯属不饱和单体B1,对应于A4的酯B2和对应于A5的单体B3,随后加入具有肼或酰肼基团的化合物C.

    Self-crosslinking aqueous polyurethane dispersions
    2.
    发明授权
    Self-crosslinking aqueous polyurethane dispersions 有权
    自交联水性聚氨酯分散体

    公开(公告)号:US07393894B2

    公开(公告)日:2008-07-01

    申请号:US10560302

    申请日:2004-06-03

    IPC分类号: C08J3/00 C08K3/20 C08L75/00

    摘要: The invention relates to self-crosslinking aqueous polyurethane dispersions containing a crosslinking agent I selected from diamones I1 and dihydrazides I2, and polyurethanes comprising structural elements derived from polyisocyanates A, polyols B having a number average molar mass Mn of at least 400 g/mol, compounds D comprising at least two groups which are reactive compared to isocyanate groups and at least one group able to form anions, low-molecular polyols E that carry no other reactive groups compared to isocyanate groups, compounds F containing at least one group which is reactive compared to isocyanate, and at least one aldehyde-type or ketone-type carbonyl group, and compounds G that are monofunctional compared to isocyanates or contain active hydrogen with different capabilities of reaction and are different from the compounds E. The invention also relates to methods for the production of said dispersions, and coating agents containing the same.

    摘要翻译: 本发明涉及含有选自二亚胺I 1和二酰肼I 2的交联剂I的自交联水性聚氨酯分散体,以及包含衍生自多异氰酸酯A的结构元素的聚氨酯,多元醇B的数均摩尔质量M N 至少400g / mol的化合物D包含至少两个与异氰酸酯基团反应的基团和至少一个能够形成阴离子的基团,与异氰酸酯基团相比不含其它反应性基团的低分子多元醇E,化合物F 含有至少一个与异氰酸酯反应的基团,以及至少一种醛型或酮型羰基,以及与异氰酸酯或具有不同反应能力的不同于化合物的活性氢的单官能化合物G 本发明还涉及生产所述分散体的方法和含有该分散体的包衣剂。