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Non-aqueous thixotroped paint and method of producing multilayer coatings with this paint

机译:非水触变涂料及用该涂料生产多层涂料的方法

摘要

The invention relates to nonaqueous coatings containing a polyacrylate resin and a urea group-containing thixotropic agent and having improved surface properties. The polyacrylate resin is prepared by polymerizing (a) from 16 to 51% by weight of a hydroxyl group-containing ester of acrylic acid or methacrylic acid or of a mixture of such monomers; (b)from 32 to 84% by weight of an aliphatic or cycloaliphatic ester of acrylic acid or methacrylic acid which is different from (a) and has at least 4 carbon atoms in the alcohol radical or of a mixture of such monomers; (c) from 0 to 2% by weight of an ethylenically unsaturated carboxylic acid or of a mixture of ethylenically unsaturated carboxylic acids, and (d)from 0 to 30% by weight of an ethylenically unsaturated monomer which is different from (a), (b) and (c) or of a mixture of such monomers. The polyacrylate resin has an acid number of from 0 to 15, a hydroxyl number of from 80 to 140, and a number-average molecular weight of from 1,500 to 10,000, the sum of the proportions by weight of components (a), (b), (c) and (d) always being 100% by weight. The urea group containing thixotropic agent is prepared by reacting a compound selected from the group consisting of polyisocyanates and mixtures thereof, with an aliphatic monoamine selected from the group consisting of primary amines, secondary amines, water, and mixtures thereof, in the presence of the polyacrylate resin, to form a dispersion of the urea group containing thixotropic agent and the polyacrylate resin.
机译:本发明涉及含有聚丙烯酸酯树脂和含脲基的触变剂并具有改善的表面性能的非水涂料。该聚丙烯酸酯树脂是通过使(a)16至51重量%的丙烯酸或甲基丙烯酸的含羟基的酯或这些单体的混合物聚合而制备的; (b)32-84%(重量)的丙烯酸或甲基丙烯酸的脂族或脂环族酯,它与(a)不同并且在醇基或这些单体的混合物中具有至少4个碳原子; (c)0至2重量%的烯键式不饱和羧酸或烯键式不饱和羧酸的混合物,和(d)0至30重量%的不同于(a)的烯键式不饱和单体, (b)和(c)或这些单体的混合物。聚丙烯酸酯树脂的酸值为0至15,羟基数为80至140,数均分子量为1,500至10,000,是组分(a),(b)的重量比之和。 ),(c)和(d)始终为100%重量。通过使选自多异氰酸酯及其混合物的化合物与选自伯胺,仲胺,水及其混合物的脂族单胺在存在下的反应,制备含脲基的触变剂。聚丙烯酸酯树脂,以形成含脲基触变剂和聚丙烯酸酯树脂的分散体。

著录项

  • 公开/公告号AU682686B2

    专利类型

  • 公开/公告日1997-10-16

    原文格式PDF

  • 申请/专利权人 BASF LACKE + FARBEN AG;

    申请/专利号AU19940064268

  • 发明设计人 ULRIKE ROCKRATH;ULRICH POTH;

    申请日1994-03-16

  • 分类号C09D133/06;C09D5/04;

  • 国家 AU

  • 入库时间 2022-08-22 03:22:30

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