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    • 3. 发明授权
    • Powder coating composition and its use for the preparation of matte
coatings
    • 粉末涂料组合物及其用于制备无光泽涂料的用途
    • US5786419A
    • 1998-07-28
    • US649044
    • 1996-05-16
    • Hans-Ulrich Meier-WesthuesWolfgang SchultzHans Josef LaasWalter SchaferHans-Peter Klee
    • Hans-Ulrich Meier-WesthuesWolfgang SchultzHans Josef LaasWalter SchaferHans-Peter Klee
    • C09D5/03C08G18/10C08G18/38C08G18/66C08G18/79C09D5/00C09D5/28C09D5/46C09D175/00C09D175/04C09D175/06C08J3/00C08K3/20C08L75/00
    • C08G18/798C08G18/10C08G18/3825C08G18/6633C08G2150/20Y10T428/31551
    • The present invention relates to a powder coating composition for the production of matte coatings, containing A) a hydroxyl group-containing component, B) an addition polymerization compound which is based on aliphatic and/or cycloaliphatic diisocyanates and contains uretdione groups, C) a component which contains carboxyl and/or carboxylic acid anhydride groups and is selected from C1) aliphatic and/or cycloaliphatic dicarboxylic acids containing 4 to 20 carbon atoms, C2) monomeric and/or polymeric anhydrides of the acids C1) which may optionally be modified and C3) aliphatic hydroxycarboxylic acids containing 4 to 18 carbon atoms, and D) a component which contains groups which are reactive with carboxyl and/or carboxylic acid anhydride groups, provided that components A), B), C) and D) are present in amounts such that 0.6 to 1.4 isocyanate groups of component B) are present for each hydroxyl group of component A), 0.3 to 1.5 groups of component D) which are reactive with carboxyl and/or carboxylic acid anhydride groups are present for each carboxyl equivalent of component C) and the amount of components C) and D) is 10 to 40% by weight of the total amount of components A), B), C) and D). The present invention also relates to the use of this powder coating composition for coating heat-resistant substrates.
    • 本发明涉及一种用于生产无光泽涂层的粉末涂料组合物,其含有A)含羟基的组分,B)基于脂族和/或脂环族二异氰酸酯并含有脲二酮基团的加成聚合化合物,C) 含有羧基和/或羧酸酐基团的组分,并且选自C1)含有4至20个碳原子的脂族和/或脂环族二羧酸,C2)可任选地被修饰的酸C1)的单体和/或聚合酸酐, C3)含有4至18个碳原子的脂族羟基羧酸,以及D)含有与羧基和/或羧酸酐基团反应的基团的组分,条件是组分A),B),C)和D)存在于 数量使得组分B)的每个羟基存在0.6至1.4个异氰酸酯基团组分A),0.3至1.5组与羧基反应的组分D) 对于组分C)的每个羧基当量存在d /或羧酸酐基团,并且组分C)和D)的量为组分A),B),C)和D的总量的10至40重量% )。 本发明还涉及这种粉末涂料组合物用于涂覆耐热基材的用途。