Powder coating compositions
    3.
    发明授权
    Powder coating compositions 失效
    粉末涂料组合物

    公开(公告)号:US5219939A

    公开(公告)日:1993-06-15

    申请号:US748300

    申请日:1991-08-21

    摘要: The present invention relates to powder coating compositions which are solid below 3O.degree. C. and contain a mixture ofA) a copolymer component which is solid below 3O.degree. C. and contains at least one copolymer containing both cyclic carboxylic anhydride groups and hydroxyl groups,B) a polyepoxide component which contains at least one polyepoxide containing at least two epoxide groups per molecule.

    摘要翻译: 本发明涉及固体低于30℃的粉末涂料组合物,并含有A)共聚物组分的混合物,该共聚物组分在30℃以下为固体,并含有至少一种含有环状羧酸酐基团和羟基的共聚物, B)聚环氧化物组分,每分子含有至少一个含有至少两个环氧基的聚环氧化物。

    Powder coating compositions containing polyurethanes having
(meth)acryloyl groups as binders
    4.
    发明授权
    Powder coating compositions containing polyurethanes having (meth)acryloyl groups as binders 失效
    含有(甲基)丙烯酰基作为粘合剂的聚氨酯的粉末涂料组合物

    公开(公告)号:US5068305A

    公开(公告)日:1991-11-26

    申请号:US556223

    申请日:1990-07-20

    摘要: The present invention relates to powder coating compositions which can be cured in the presence of heat and/or high energy radiation and contain polyurethanes which melt at temperatures of 50.degree. to 180.degree. C., have 3 to 10% by weight of olefinic double bonds in the form of (meth)acryloyl groups (calculated as .dbd.C.dbd.C.dbd., molecular weight=24) and are based on the reaction product ofA) 40 to 80 parts by weight of one or more organic polyisocyanates withB) 15 to 50 parts of weight of one or more monohydric alcohols containing (meth)acryloyl groups andC) 2 to 20 parts by weight one or more compounds which are free from (meth)acryloyl groups and contain isocyanate reactive groups.

    摘要翻译: 本发明涉及粉末涂料组合物,其可以在热和/或高能量辐射的存在下固化,并且包含在50-180℃的温度下熔化的聚氨酯,具有3至10重量%的烯属双键 以(甲基)丙烯酰基的形式(以C = C =分子量= 24计算),并且基于A)的反应产物:40至80重量份的一种或多种有机多异氰酸酯与B)15至 50重量份的一种或多种含(甲基)丙烯酰基的一元醇和C)2至20重量份的一种或多种不含(甲基)丙烯酰基并含有异氰酸酯反应性基团的化合物。

    Process for the production of polyesters and their use as binder or
binder component in powder lacquers
    6.
    发明授权
    Process for the production of polyesters and their use as binder or binder component in powder lacquers 失效
    生产聚酯的方法及其作为粉末涂料中的粘合剂或粘合剂成分的用途

    公开(公告)号:US4943623A

    公开(公告)日:1990-07-24

    申请号:US273949

    申请日:1988-11-21

    摘要: Polyesters useful as a binder or a component of a binder for powder lacquers and which contain hydroxyls, carboxyls or both and which have an acid value of up to 50, a hydroxyl value of up to 200 and a sum of hydroxyl value and acid value of from 20 to 200 is produced by reacting:(a) an acid component selected from the group consisting of (a1) at least one poly-functional organic carboxylic acid, (a2) at least one ester-forming derivative of a poly-functional organic carboxylic acid, (a3) at least one organic hydroxycarboxylic acid, (a4) at least one lactone of an organic hydroxycarboxylic acid, and mixtures thereof, with the proviso that at least 50 mol-% of component (a) consists of aromatic species of components (a1), (a2), (a3), (a4), or mixtures thereof,with(b) a polyol component which is at least one polyhydric alcohol having a molecular weight in the range from 62 to 250,while maintaining an equivalent ratio of carboxyl groups to hydroxyl groups of form 0.65:1 to 1.5:1, with the proviso that component (b) is used in a quantity of at least 30% by weight, based on the weight of component (a), and the reaction is carried out in the presence of(c) at least 5% by weight, based on the weight of components (a) and (b), of a solvent containing amide groups, lactam groups, or both and said solvent is free from any nitrogenhydrogen bonds.

    摘要翻译: 可用作粘合剂或用于粉末涂料的粘合剂组分的聚酯,其含有羟基,羧基或两者,并且其酸值高达50,羟值高达200,羟基值和酸值之和 通过使(a)选自(a1)至少一种多官能有机羧酸的酸成分,(a2)至少一种多官能有机羧酸的成酯衍生物, 羧酸,(a3)至少一种有机羟基羧酸,(a4)至少一种有机羟基羧酸的内酯及其混合物,条件是至少50摩尔%的组分(a)由芳族物质 组分(a1),(a2),(a3),(a4)或其混合物与(b)至少一种分子量为62-250的多元醇的多元醇组分,同时保持 羧基与羟基的当量比为0.65:1至1.5:1 条件是组分(b)以基于组分(a)的重量为至少30重量%的量使用,并且反应在(c)至少5重量%的存在下进行, 基于组分(a)和(b)的重量,含有酰胺基,内酰胺基或二者的溶剂,所述溶剂不含任何氮氢键。

    Isocyanurate group-containing polyisocyanates
    7.
    发明授权
    Isocyanurate group-containing polyisocyanates 失效
    含异氰脲酸酯基的多异氰酸酯

    公开(公告)号:US4851531A

    公开(公告)日:1989-07-25

    申请号:US74380

    申请日:1987-07-16

    摘要: The present invention is directed to isocyanato isocyanurates prepared from diisocyanates which contain a sterically unhindered isocyanate group bound to a primary aliphatic carbon atom and a sterically hindered isocyanate group which is bound to a tertiary carbon atom forming part of a cycloaliphatic ring system, said diisocyanate having an NCO content of about 20 to 50% by weight. The present invention is further directed to a process for preparing these isocyanato isocyanurates by catalytic trimerization and the use of the isocyanato isocyanurates in a process for the production of polyisocyanate polyaddition products, preferably two-component polyurethane stoving lacquers.

    摘要翻译: 本发明涉及由二异氰酸酯制备的异氰酸根合异氰脲酸酯,该二异氰酸酯包含与主要脂族碳原子结合的空间上不受阻碍的异氰酸酯基团和与形成脂环族环系的一部分的叔碳原子结合的空间位阻异氰酸酯基团,所述二异氰酸酯具有 约20至50重量%的NCO含量。 本发明还涉及一种通过催化三聚制备这些异氰酸酯异氰脲酸酯的方法,以及在制备多异氰酸酯加聚产物的方法中使用异氰酸酯基异氰脲酸酯的方法,优选为双组分聚氨酯烘烤漆。