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1. 发明申请

US20070106019A1 METHOD FOR MULTILAYER COATINGS WITH SELF- CROSSLINKING GRAFT POLYURETHANE COPOLYMERS, SELF-CROSSLINKING POLYURETHANES AND GRAFT COPOLYMERS THEREOF 有权
标题翻译：自交联聚氨酯共聚物，自交联聚氨酯和其共聚物的多层涂料的方法
公开(公告)号：US20070106019A1
公开(公告)日：2007-05-10
申请号：US11620146
申请日：2007-01-05
申请人： Stephan SCHWARTE , Egon Wegner , Harald Angermuller
发明人： Stephan SCHWARTE , Egon Wegner , Harald Angermuller
IPC分类号： B05D7/00 , B05D3/02 , C08G18/08
CPC分类号： C09J151/003 , C08F283/006 , C08F290/147 , C08G18/0823 , C08G18/12 , C08G18/4233 , C08G18/6659 , C08G18/675 , C08L51/003 , C08L51/08 , C08L2666/04 , C08L2666/14 , C09D151/003 , C09D151/08 , C09D175/14 , C09J151/08 , C08G18/3271 , C08G18/286 , C08L33/00
摘要： The invention relates to a method for producing chromophore and/or effect giving multilayer lacquers according to the wet-on-wet method. A water base lacquer is applied which contains at least one graft copolymer containing (A) at least one (meth)acrylate copolymer and (B) at least one polyurethane. The graft copolymer can be produced by (1) dispersing at least one hydrophilic or hydrophobic self cross-linking polyurethane (B) with a statistical average of at least one terminal and/or at least one lateral olefinically unsaturated group and at least one blocked isocyanate group per molecule in an aqueous medium. (2) A mixture of a at least one monomer (a1) with at least one isocyanate reactive functional group at last one monomer (a2) that can be copolymerised therewith is subsequently radically copolymerised in an emulsion in the presence of the polyurethane (B) or the polyurethanes (B). A powder slurry transparent lacquer layer is added to the resulting base lacquer layer. The base lacquer layer and the transparent lacquer layer are hardened together. The invention also relates to novel hydrophilic or hydrophobic self cross-linking polyurethanes (B) with at least one lateral and/or at least one terminal olefinically unsaturated group and at least one lateral blocked isocyanate group per molecule and graft copolymers on the basis of said polyurethanes (B) as well as the use thereof.
摘要翻译：本发明涉及一种根据湿法湿法生产发色团和/或产生多层漆的效果的方法。应用含有（A）至少一种（甲基）丙烯酸酯共聚物和（B）至少一种聚氨酯）的至少一种接枝共聚物的水基漆。接枝共聚物可以通过（1）分散至少一种具有至少一个末端和/或至少一个侧面烯属不饱和基团的统计平均值的至少一种亲水或疏水性自交联聚氨酯（B）和至少一种封端异氰酸酯每个分子在水性介质中。（2）在聚氨酯（B）的存在下，将至少一种单体（a1）与至少一种可与其共聚的单体（a2）的至少一种异氰酸酯反应性官能团的混合物随后在乳液中自由基共聚，或聚氨酯（B）。将粉末浆状透明漆层加入到所得的基漆层中。基底漆层和透明漆层一起硬化。本发明还涉及具有至少一个侧链和/或至少一个末端烯属不饱和基团和每个分子至少一个侧向封端异氰酸酯基团的新型亲水或疏水自交联聚氨酯（B）和基于所述聚氨酯（B）及其用途。

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