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    POWDER COMPOSITIONS
    1.
    发明申请
    POWDER COMPOSITIONS 有权
    粉末组合物

    公开(公告)号：US20100311896A1

    公开(公告)日：2010-12-09

    申请号：US12864542

    申请日：2009-01-30

    Applicant: Roberto Cavalieri ,  Alessandro Minesso ,  Luc Moens ,  Delfio Favrin

    Inventor： Roberto Cavalieri ,  Alessandro Minesso ,  Luc Moens ,  Delfio Favrin

    IPC: C08L33/02 ,  C08J7/18 ,  B05D1/12

    CPC classification number: C09D167/02 ,  C08G2150/20 ,  C08L33/062 ,  C09D167/06 ,  C08L2666/04

    Abstract: There is described a thermosetting and/or radiation curable powder with a binder prepared from a polyester (PE) obtained from a polyol with lower amounts of neopentyl glycol (NPG). The powder forms smooth defect free coats and is resistant to contamination from conventional NPG-rich PE. The powder comprises a binder of a co-reactable blend of (i) 40-98% by weight (w/w) at least one OH, COOH or ethylenically functional (fn) PE having acid or OH number 10-100 mg KOH/g, T9>40° C., where the PE is obtained from reacting a polyacid comprising 70-100% weight of terephthalic acid (TPA) and/or isophthalic acid (IPA) and 0-30% w/w another polyacid; with a polyol comprising 0-85% w/w NPG and 15-100% w/w another polyhydric polyol; (ii) 2-60% w/w at least one glycidyl or isocyanate fn polyphenoxy resin; polyepoxy and/or β-hydroxyalkylamide crosslinker or ethylenically functional oligomer; and (iii) 0.2-5 % w/w of at least one COOH or OH fn acrylic copolymer with a value of 10-100 mg KOH/g; T9>400 C and a number average molecular weight (Mn) 1000-15000 and/or at least one glycidyl or isocyanate fn acrylic copolymer having an fn equivalent weight of from 150 to 1000 g of acrylic copolymer per equivalent of fn group, T9>40° C. and Mn 1000 to 15000 and/or a non functional acrylic copolymer having Tg>400 C and Mn 1000 to 15000.

    Abstract translation: 描述了由从具有较少量的新戊二醇（NPG）的多元醇获得的聚酯（PE）制备的具有粘合剂的热固性和/或可辐射固化粉末。 粉末形成光滑的无缺陷涂层，并且耐受来自常规NPG的PE的污染。 粉末包含（i）40-98重量％（w / w）至少一种具有酸或OH数为10-100mg KOH / g的至少一种OH，COOH或烯键式官能（fn）PE的共反应混合物的粘合剂， g，T9> 40℃，其中PE是通过使包含70-100重量％对苯二甲酸（TPA）和/或间苯二甲酸（IPA）和0-30重量％的另一种多酸的多酸反应获得的; 与多元醇包含0-85％w / w的NPG和15-100％w / w的另一种多元醇; （ii）2-60％w / w至少一种缩水甘油基或异氰酸酯fn聚苯氧树脂; 聚环氧基和/或（bgr） - 羟烷基酰胺交联剂或烯键式功能低聚物; 和（iii）0.2-5％w / w的至少一种值为10-100mg KOH / g的COOH或OH fn丙烯酸共聚物; T9> 400℃，数均分子量（Mn）1000-15000和/或至少一种当量重量为150-1000g丙烯酸共聚物的每一当量fn基团的至少一种缩水甘油基或异氰酸酯fn丙烯酸共聚物，T9> 40℃，Mn 1000〜15000，和/或Tg> 400℃，Mn 1000〜15000的非官能丙烯酸共聚物。

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