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    Powder coating compositions, a process for their preparation, and their use for the coating of heat resistant substrates
    3.
    发明授权
    Powder coating compositions, a process for their preparation, and their use for the coating of heat resistant substrates 失效
    粉末涂料组合物，其制备方法及其用于涂覆耐热基材的用途

    公开(公告)号：US5508337A

    公开(公告)日：1996-04-16

    申请号：US238563

    申请日：1994-05-05

    申请人： Christian Wamprecht ,  Reinhard Halpaap ,  Hans-Ulrich Meier-Westhues ,  Wolfgang Schultz

    发明人： Christian Wamprecht ,  Reinhard Halpaap ,  Hans-Ulrich Meier-Westhues ,  Wolfgang Schultz

    IPC分类号： C08G18/40 ,  C08G18/78 ,  C08G18/79 ,  C08G18/80 ,  C09D5/46 ,  C08J3/00 ,  C08F8/30 ,  C08K3/20 ,  C08L75/00

    CPC分类号： C08G18/7831 ,  C08G18/4063 ,  C08G18/792 ,  C08G18/8077 ,  C08G2150/20 ,  Y10T428/31551

    摘要： The present invention relates to a powder coating composition having a glass transition temperature of 20.degree. to 80.degree. C. and containing(A) 56 to 86.9% by weight of a polyacrylate polyol component having a hydroxyl number of 30 to 155 and a glass transition temperature of 30.degree. to 120.degree. C.,(B) 0.1 to 9% by weight of a polyester polyol component having a hydroxyl number of 40 to 180 and a glass transition temperature of -40.degree. to 80.degree. C.,(C) 13 to 35% by weight of a polyisocyanate component having a glass transition temperature of -40.degree. to 60.degree. C. and containing at least one ketoxime-blocked polyisocyanate selected from (i) polyisocyanate derivatives prepared from 1,6-diisocyanatohexane and containing biuret, isocyanurate, uretdione, and/or urethane groups, (ii) polyisocyanate derivatives prepared from mixtures of 1,6-diisocyanatohexane and 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane and containing isocyanurate groups and optionally uretdione groups and (iii) polyisocyanate derivatives prepared from 4,4'-diisocyanato-dicyclohexylmethane and containing urethane groups, and(D) at least one catalyst for the reaction between blocked isocyanate groups and hydroxyl groups,wherein i) the percentages of components (A), (B), and (C) are based on the total weight of these components and ii) components (A), (B), and (C) are present in amounts sufficient to provide an equivalent ratio of blocked isocyanate groups to hydroxyl groups of 0.5:1 to 1.5:1.The present invention is also relates to a process for the preparation of this powder coating composition and to heat-resistant substrates, particularly automotive body parts, coated with this powder coating composition.

    摘要翻译： 本发明涉及玻璃化转变温度为20〜80℃，含有（A）56〜86.9重量％的羟基数为30〜155的聚丙烯酸酯多元醇成分和玻璃化转变温度的粉末涂料组合物 温度为30〜120℃，（B）0.1〜9重量％的羟值为40〜180，玻璃化转变温度为-40〜80℃的聚酯多元醇成分，（C） 13至35重量％的玻璃化转变温度为-40至60℃的多异氰酸酯组分，并含有至少一种酮肟封闭的多异氰酸酯，其选自（i）由1,6-二异氰酸根合己烷制备并含有缩二脲 ，异氰脲酸酯，脲二酮和/或氨基甲酸酯基团，（ii）由1,6-二异氰酸根合己烷和1-异氰酸根合-3,3,5-三甲基-5-异氰酸甲酯基环己烷的混合物制备并含有异氰脲酸酯基团和任选的脲二酮基团的多异氰酸酯衍生物， （iii ）由4,4'-二异氰酸根合二环己基甲烷制备并含有氨基甲酸酯基团的多异氰酸酯衍生物，和（D）至少一种用于封端异氰酸酯基和羟基之间反应的催化剂，其中i）组分（A），（B ）和（C）基于这些组分的总重量，和ii）组分（A），（B）和（C）以足以提供封端异氰酸酯基与羟基的当量比为0.5的量存在 ：1〜1.5：1。 本发明还涉及这种粉末涂料组合物的制备方法以及涂覆有该粉末涂料组合物的耐热基材，特别是汽车车身部件。

    Blocked polyisocyanates containing amide/imide groups and their use in stoving lacquers
    8.
    发明授权
    Blocked polyisocyanates containing amide/imide groups and their use in stoving lacquers 失效
    含有酰胺/酰亚胺基团的封闭多异氰酸酯及其在烘烤漆中的应用

    公开(公告)号：US5883216A

    公开(公告)日：1999-03-16

    申请号：US671282

    申请日：1996-06-27

    申请人： Reinhard Halpaap ,  Hans Schlegel ,  Jan Mazanek ,  Hans-Ulrich Meier-Westhues

    发明人： Reinhard Halpaap ,  Hans Schlegel ,  Jan Mazanek ,  Hans-Ulrich Meier-Westhues

    IPC分类号： C08G18/34 ,  C08G18/65 ,  C08G18/80 ,  C09D5/25 ,  C09D175/00 ,  C09D175/04 ,  H01B3/30 ,  C08G18/40 ,  C07C230/00

    CPC分类号： H01B3/30 ,  C08G18/8009 ,  C08G18/8048 ,  C08G18/8061

    摘要： The present invention relates to polyisocyanates containingi) 0.5 to 10 wt. % of amide and/or imide structural units (calculated as --CO--N.dbd., MW=42),ii) 5 to 20 wt. % of isocyanate groups (calculated as --NCO, MW=42) blocked with blocking agents which are monofunctional in the context of the isocyanate addition reaction andiii) 0 to 30 wt. % of chemically incorporated urethane groups (calculated as --NH--CO--O--, MW=59) obtained from the reaction of isocyanate groups with the hydroxyl groups of organic polyhydroxyl compounds.The present invention also relates to a process for the production of these lacquer polyisocyanates, their use as a binder for stoving lacquers optionally in combination with organic polyhydroxyl compounds and to their use as a binder component containing free hydroxyl groups and optionally blocked isocyanate groups by reacting and/or blending the polyisocyanates with organic polyhydroxyl compounds having a molecular weight of 62 to 350.

    摘要翻译： 本发明涉及含有i）0.5〜10wt。 酰胺和/或酰亚胺结构单元的％（以-CO-N =，MW = 42计算），ii）5至20重量％ 异氰酸酯基团的％（以-NCO，MW = 42计算）用在异氰酸酯加成反应的上下文中是单官能的封闭剂封闭，和iii）0-30wt。 由异氰酸酯基与有机多羟基化合物的羟基的反应获得的化学引入的氨基甲酸酯基团的％（以-NH-CO-O-，MW = 59计算）。 本发明还涉及生产这些漆多异氰酸酯的方法，它们作为用于烘烤漆的粘合剂的用途，任选地与有机多羟基化合物组合，以及它们作为含有游离羟基和任选的封端异氰酸酯基团的粘合剂组分的用途，通过使 和/或将多异氰酸酯与分子量为62〜350的有机多羟基化合物混合。