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    • 2. 发明授权
    • Polyurethane and its use for producing solvent-free coating substances
    • 聚氨酯及其用于生产无溶剂的涂料物质
    • US06555613B1
    • 2003-04-29
    • US09936004
    • 2001-09-07
    • Ulrich PothUlrike RöckrathIngrid Heid
    • Ulrich PothUlrike RöckrathIngrid Heid
    • C08J300
    • C08G18/4263C08G18/0823C09D175/06
    • A reactive polyurethane with a number average molecular weight Mn of 800 to 14,000 daltons, a branching degree of 0.0 to 3.0 Mol/kg and an isocyanate functionality of 2.0 to 6.0. The reactive polyurethane is produced by reacting polyester and/or polyether, which both have at least two functional groups that are reactive with isocyanate and which have a molecular weight of 400 to 2,500 daltons and a branching degree of 0 to 3.5 Mol/kg; with at least one polyol with a molecular weight of 62 to 400 daltons and a functionality of 2 to 4; polyamines and/or alkanolamines; compounds with at least one functional group capable of producing anions and at least one functional group that is reactive with isocyanates; polyisocyanates and/or polyisocyanate adducts; blocking agents for the isocyanate groups and neutralizer. Also, a polyurethane dispersion containing the reactive polyurethanes.
    • 数均分子量Mn为800〜14000道尔顿的反应性聚氨酯,支链度为0.0〜3.0Mol / kg,异氰酸酯官能度为2.0〜6.0。 反应性聚氨酯通过使聚酯和/或聚醚反应生成,其二者具有至少两个与异氰酸酯反应的官能团,分子量为400至2500道尔顿,支化度为0至3.5Mol / kg; 与至少一种分子量为62至400道尔顿和官能度为2至4的多元醇; 多胺和/或链烷醇胺; 具有至少一个能够产生阴离子的官能团和至少一个与异氰酸酯反应的官能团的化合物; 多异氰酸酯和/或多异氰酸酯加合物; 用于异氰酸酯基团和中和剂的封端剂。 此外,含有反应性聚氨酯的聚氨酯分散体。
    • 5. 发明授权
    • Nonaqueous coating and process for producing a two-coat finish
    • 非水性涂料和双层涂层的生产方法
    • US06403699B1
    • 2002-06-11
    • US08513925
    • 1995-09-28
    • Ulrike RöckrathUlrich Poth
    • Ulrike RöckrathUlrich Poth
    • C08F26702
    • B05D7/532B05D7/534C08L75/02C09D133/066C08L2666/14
    • 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.
    • 本发明涉及含有聚丙烯酸酯树脂和含脲基触变剂并具有改进的表面性能的非水性涂料。 通过聚合(a)16至51重量%的丙烯酸或甲基丙烯酸或这些单体的混合物的含羟基的酯来制备聚丙烯酸酯树脂; (b)32至84重量%的不同于(a)并且在醇基或这些单体的混合物中具有至少4个碳原子的丙烯酸或甲基丙烯酸的脂族或脂环族酯; (c)0至2重量%的烯属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)的烯属不饱和单体, (b)和(c)或这些单体的混合物。 聚丙烯酸酯树脂的酸值为0〜15,羟值为80〜140,数均分子量为1,500〜10,000,成分(a),(b)的重量比 ),(c)和(d)总是为100重量%。 含有触变剂的脲基团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进行反应来制备 聚丙烯酸酯树脂,形成含有脲基团的触变剂和聚丙烯酸酯树脂的分散体。