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    Radiation curable powder coating compositions and their use
    3.
    发明授权
    Radiation curable powder coating compositions and their use 失效
    辐射固化粉末涂料组合物及其用途

    公开(公告)号：US06825240B2

    公开(公告)日：2004-11-30

    申请号：US10321384

    申请日：2002-12-18

    申请人： Andreas Wenning ,  Giselher Franzmann ,  Emmanouil Spyrou

    发明人： Andreas Wenning ,  Giselher Franzmann ,  Emmanouil Spyrou

    IPC分类号： C08G1800

    CPC分类号： C09D175/16 ,  C08G18/672 ,  C08G2150/20 ,  C08G2250/00 ,  C08G18/42

    摘要： A radiation curable powder coating composition, comprising I.) a binder comprising A) 60-90% by weight of at least one amorphous urethane acrylate; and B) 10-40% by weight of at least one crystalline urethane acrylate; wherein a Tg of a mixture of A) and B) is at least 35° C.; and II.) an auxiliary and an additive, excluding an UV initiator, crosslinks to yield a lightfast and weather-stable film.

    摘要翻译： 一种可辐射固化粉末涂料组合物，其包含I.）一种粘合剂，其包含A）60-90重量％的至少一种无定形聚氨酯丙烯酸酯; 和B）10-40重量％的至少一种结晶聚氨酯丙烯酸酯; 其中A）和B）的混合物的Tg至少为35℃。 和II。）除了UV引发剂之外的辅助剂和添加剂交联以产生耐光和耐候稳定的膜。

    Low-temperature-curable, solid polyurethane powder coating compositions containing uretdione groups
    6.
    发明授权
    Low-temperature-curable, solid polyurethane powder coating compositions containing uretdione groups 失效
    含有脲二酮基团的低温可固化的固体聚氨酯粉末涂料组合物

    公开(公告)号：US06914115B2

    公开(公告)日：2005-07-05

    申请号：US10305137

    申请日：2002-11-27

    申请人： Emmanouil Spyrou ,  Holger Loesch ,  Andreas Wenning

    发明人： Emmanouil Spyrou ,  Holger Loesch ,  Andreas Wenning

    IPC分类号： C08G18/18 ,  C08G18/79 ,  C09D5/03 ,  C09D5/46 ,  C09D163/00 ,  C09D175/04 ,  C08G18/16 ,  C08G18/80 ,  C08L75/04

    CPC分类号： C08G18/1875 ,  C08G18/798 ,  C08G2150/20 ,  C08G2250/00 ,  C09D175/04 ,  Y10T428/31551 ,  Y10T428/31591 ,  Y10T428/31601 ,  Y10T428/31605

    摘要： Polyurethane powder coating compositions containing uretdione groups and curing at low temperatures are provided, along with processes for preparing such compositions, and their use as powder coatings, wherein the compositions generally contain: A) a uretdione-containing powder coating hardener derived from aliphatic, (cyclo)aliphatic, cycloaliphatic or aromatic polyisocyanates and hydroxyl-containing compounds, and having a melting point from 40 to 130° C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) a hydroxyl-containing polymer having a melting point from 40 to 130° C., and an OH number between 20 and 200 mg KOH/gram, and C) a catalyst of the formula [NR1R2R3R4]+[R5]−, in which R1-R4 simultaneously, or independently of one another, are alkyl, aryl, aralkyl, heteroaryl or alkoxyalkyl radicals, and each R1-R4 is aromatic, linear or branched, unbridged or bridged with other radicals, R1-R4.

    摘要翻译： 提供含有脲二酮基团并在低温下固化的聚氨酯粉末涂料组合物及其制备方法，以及它们作为粉末涂料的用途，其中组合物通常包含：A）衍生自脂肪族的含脲二酮的粉末涂料固化剂，（ 环）脂族，脂环族或芳族多异氰酸酯和含羟基化合物，熔点为40至130℃，游离NCO含量小于5重量％，脲二酮含量为6-18重量％ ; B）具有40-130℃的熔点和20-200mg KOH /克的OH值的含羟基的聚合物，和C）式[NR 1]的催化剂， R 2 O 3 R 4 S 4 O 3 R 4 R 4 O 3 其中R 1〜R 4同时或彼此独立地是烷基，芳基，芳烷基，杂芳基或烷氧基烷基，并且每个R R 4是具有其它基团的芳族，直链或支链，未桥连或桥连的，其中R 1，R 2，R 4， >。

    Solid polyurethane powder coating compositions containing uretdione groups that are hardenable at low temperatures
    8.
    发明授权
    Solid polyurethane powder coating compositions containing uretdione groups that are hardenable at low temperatures 有权
    含有在低温下可硬化的脲二酮基团的固体聚氨酯粉末涂料组合物

    公开(公告)号：US07572876B2

    公开(公告)日：2009-08-11

    申请号：US10836407

    申请日：2004-05-03

    申请人： Emmanouil Spyrou ,  Holger Loesch ,  Andreas Wenning

    发明人： Emmanouil Spyrou ,  Holger Loesch ,  Andreas Wenning

    IPC分类号： C08G18/16 ,  C08G18/18 ,  C08G18/80 ,  C08G18/28 ,  C08G18/10 ,  C07D229/00

    CPC分类号： C08G18/42 ,  C08G18/1875 ,  C08G18/798 ,  C08G2150/20 ,  Y10T428/31551

    摘要： A highly reactive polyurethane powder coating composition, which contains uretdione groups that are hardenable at low temperatures, contains A) at least one uretdione-containing powder coating hardener based on aliphatic, (cyclo)aliphatic or cycloaliphatic polyisocyanates and hydroxyl-containing compounds, the hardener having a melting point of from 40 to 130° C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) at least one hydroxyl-containing polymer having a melting point of from 40 to 130° C., and an OH number of between 20 and 200 mg KOH/g; C) 0.001-3% by weight of at least one tetraalkyl ammonium carboxylate catalyst, based on a total amount of components A) and B). Components A) and B) are present in a ratio so that for each hydroxyl group of component B) there is from 0.3 to 1 uretdione group of component A).

    摘要翻译： 包含在低温下可硬化的脲二酮基团的高反应性聚氨酯粉末涂料组合物含有A）至少一种基于脂族（（））脂族或脂环族多异氰酸酯和含羟基化合物的含有脲二酮的粉末涂料硬化剂，所述固化剂 熔点为40-130℃，游离NCO含量小于5重量％，脲二酮含量为6-18重量％; B）至少一种含羟基的聚合物，其熔点为40-130℃，OH值为20-200mg KOH / g; C）0.001-3重量％的至少一种羧酸四烷基铵催化剂，基于组分A）和B）的总量。 组分A）和B）以比例存在，使得对于组分B）的每个羟基，组分A）为0.3至1个脲二酮基团。