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    • 4. 发明授权
    • Method for producing multilayer coatings
    • 生产多层涂料的方法
    • US06607788B1
    • 2003-08-19
    • US09486103
    • 2000-04-18
    • Egon WegnerGudrun WiemannEkkehard SapperHarald Angermüller
    • Egon WegnerGudrun WiemannEkkehard SapperHarald Angermüller
    • B05D136
    • C09D175/14C08L51/08C08L75/14C09D125/14C09D133/064C09D151/08C08L2666/02C08L2666/14
    • The invention embraces basecoating compositions comprising as binder constituents (i) an acrylate dispersion having a content of from 30 to 60% by weight of C1-C8-alkyl (meth)acrylate-containing monomers, from 30 to 60% by weight of vinylaromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid in the polymer, and (ii) a dispersion of a polymer which is obtainable by subjecting an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers to free-radical polymerization in the presence of a water-insoluble initiator or of a mixture of water-insoluble initiators and in an aqueous dispersion of a polyurethane resin which has a number-average molecular weight Mn of from 1000 to 30,000 daltons and comprises on average from 0.05 to 1.1 polymerizable double bonds per molecule, the weight ratio between the polyurethane resin and the ethylenically unsaturated monomers or the mixture of ethylenically unsaturated monomers lying between 1:10 and 10:1, and (iii) a Theological assistant which comprises a synthetic polymer having ionic and/or associative groups. Also embraced are processes for producing multicoat coating systems with coats of the said basecoating compositions, and substrates coated with such multicoat coating systems.
    • 本发明包括含有作为粘合剂成分的底漆组合物(i)含有30-60%(重量)含C1-C8-烷基(甲基)丙烯酸烷基酯单体的丙烯酸酯分散体,30-60%重量的乙烯基芳族单体 和聚合物中0.5〜10重量%的(甲基)丙烯酸,和(ii)聚合物的分散体,其可通过在烯属不饱和单体或烯属不饱和单体的混合物中进行自由基聚合而获得 存在水不溶性引发剂或水不溶性引发剂的混合物,并且在数均分子量Mn为1000至30,000道尔顿的聚氨酯树脂的水分散体中,平均包含0.05至1.1的可聚合双 每个分子的键,聚氨酯树脂和烯属不饱和单体之间的重量比或烯属不饱和单体的混合物的比例在1:10和10:1之间,和(iii) 神学助剂,其包含具有离子和/或缔合基团的合成聚合物。 还包括用所述底漆组合物的涂层生产多层涂布体系的工艺,以及用这种多涂层体系涂布的基材。
    • 5. 发明授权
    • Coating formulation for use in aqueous multicoat paint systems
    • 涂料配方用于水性多色漆系统
    • US06221949B1
    • 2001-04-24
    • US08848684
    • 1997-06-20
    • Lutz-Werner GrossRalf SteinEgon WegnerGudrun Wiemann
    • Lutz-Werner GrossRalf SteinEgon WegnerGudrun Wiemann
    • C08G1865
    • B05D7/577C08G18/0819C09D175/04C08L2666/54
    • The present invention relates to a coating formulation for use in multicoat paint systems, which a) comprises as binder a water-dilutable polyurethane resin which has an acid number of from 10 to 60 and a number-average molecular weight of from 4000 to 25,000 and can be prepared by reacting with one another aa) a polyester—and/or polyether-polyol having a number-average molecular weight of from 400 to 5000 or a mixture of such polyester—and/or polyether-polyols, bb) a polyisocyanate or mixture of polyisocyanates, cc) a compound which has in the molecule at least one group which in reactive toward isocyanate groups and at least one group which is capable of forming anions, or a mixture of such compounds, and optionally dd) a hydroxyl—and/or amino-containing organic compound having a molecular weight of from 40 to 400, or a mixture of such compounds and at least partially neutralizing the resulting reaction product, and b) comprises pigments and/or fillers, the ratio of binder to pigment being between 0.5:1 and 1.5:1.
    • 本发明涉及用于多涂漆系统的涂料配方,其包括作为粘合剂的水可稀释的聚氨酯树脂,其具有10至60的酸值和数均分子量为4000至25,000,并且可以 通过使数均分子量为400-5000的聚酯和/或聚醚多元醇或这种聚酯和/或聚醚多元醇的混合物,bb)多异氰酸酯或 多异氰酸酯,cc)在分子中具有至少一个对异氰酸酯基团具有反应性的基团和至少一个能够形成阴离子的基团的化合物,或这些化合物的混合物,以及任选地奇数化羟基和/或氨基 分子量为40〜400的有机化合物,或这些化合物的混合物,并且至少部分中和得到的反应产物,和b)包含颜料和/或填料,粘合剂与颜料的比例为 在0.5:1和1.5:1之间。