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    • 2. 发明授权
    • Process for preparing an aqueous dispersion of a polyacrylate-modified
polyurethane-alkyd resin and the use of such a dispersion
    • 制备聚丙烯酸酯改性聚氨酯 - 醇酸树脂的水性分散体的方法和使用这种分散体
    • US6166150A
    • 2000-12-26
    • US269394
    • 1999-05-25
    • Guido WilkeUlrich PothRolf SeidemannVijay Kadambande
    • Guido WilkeUlrich PothRolf SeidemannVijay Kadambande
    • C08G18/67C08F283/00C08G18/08C08G18/42C08G18/80C08G63/49C09D175/06C09D175/14C08F283/04C09D175/16
    • C08G18/8048C08F283/002C08G18/0823C08G18/4288C09D175/14
    • A process for preparing binders for one-component paint systems has the following steps: (I) preparation of a polyurethane-alkyd resin component (A) composed of a mixture (a) of (a1) an unsaturated C.sub.6 -C.sub.30 fatty acid with at least two non-conjugated double bonds, and (a2) an unsaturated C.sub.6 -C.sub.30 fatty acid with at least two conjugated double bonds as esterified side polymer chains of the polyurethane-alkyd component (A); and (b) polyurethane units with anionic groups and/or groups which can be converted into anionic groups as main polymer chains of the polyurethane-alkyd resin component (A); (II) optional neutralisation of the groups in the polyurethane-alkyd resin component (A) which can be converted into anionic groups and their transfer into the aqueous dispersion or solution; and (III) polymerising at least one ethylenically unsaturated, radically polymerisable monomer (c) which has substantially no other reactive functional groups besides the C--C-- double bond in the dispersion prepared as under step (II) in the presence of a radical builder as polymerisation initiator.
    • PCT No.PCT / EP97 / 04951 Sec。 371日期1999年5月25日 102(e)日期1999年5月25日PCT提交1997年9月10日PCT公布。 公开号WO98 / 13404 日期:1998年4月2日制备用于单组分涂料体系的粘合剂的方法具有以下步骤:(I)由(a1)不饱和C6-烷氧基化合物的混合物(a)制备聚氨酯 - 醇酸树脂组分(A) 具有至少两个非共轭双键的C30脂肪酸,和(a2)具有至少两个共轭双键的不饱和C6-C30脂肪酸作为聚氨酯 - 醇酸组分(A)的酯化侧聚合物链; 和(b)具有可以转化为阴离子基团的阴离子基团和/或基团的聚氨酯单元作为聚氨酯 - 醇酸树脂组分(A)的主要聚合物链; (II)任选地中和聚氨酯 - 醇酸树脂组分(A)中的基团,其可以转化成阴离子基团并将其转移到水分散体或溶液中; 聚合至少一种烯键式不饱和的可自由基聚合的单体(c),其在根据步骤(II)制备的分散体中,在自由基助洗剂作为聚合反应存在下,除了CC-双键之外基本上没有其它反应性官能团 发起人