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    COATING COMPOSITIONS CONTAINING ISOCYANATE-FUNCTIONAL NON-AQUEOUS DISPERSED POLYMERS
    3.
    发明公开
    COATING COMPOSITIONS CONTAINING ISOCYANATE-FUNCTIONAL NON-AQUEOUS DISPERSED POLYMERS 有权
    与异氰酸酯非水性分散聚合物涂料组合物

    公开(公告)号：EP1425324A1

    公开(公告)日：2004-06-09

    申请号：EP02746920.4

    申请日：2002-07-09

    申请人： E.I. DU PONT DE NEMOURS AND COMPANY

    发明人： BARSOTTI, Robert, John ,  LEWIN, Laura, Ann ,  SCOPAZZI, Christopher

    IPC分类号： C08G18/08 ,  C08G18/63 ,  C08G18/62

    CPC分类号： C08G18/0871 ,  C08G18/6254 ,  C08G18/633 ,  C08G18/728 ,  C09D175/04

    摘要： A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about (a) 10-70% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having (i) a core of gelled polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stabilizer polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC (gel permeation chromatography) using polystyrene as the standard; wherein the core, the stabilizer polymeric component, or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having isocyanate groups attached thereto that are capable of reacting with component (b); (b) 30-90% by weight, based on the weight of the binder, of an oligomer or polymer or both having functional groups capable of reacting with the isocyanate groups of component (a); and (c) 0-60% by weight, based on the weight of the binder, of an organic polyisocyanate crosslinking agent.

    REACTIVE OLIGOMERS FOR ISOCYANATE COATINGS
    8.
    发明公开
    REACTIVE OLIGOMERS FOR ISOCYANATE COATINGS 有权
    用于异氰酸酯涂层的反应性低聚物

    公开(公告)号：EP1028987A1

    公开(公告)日：2000-08-23

    申请号：EP98956486.9

    申请日：1998-11-03

    申请人： E.I. DU PONT DE NEMOURS AND COMPANY

    发明人： BARSOTTI, Robert, J. ,  LEWIN, Laura, Ann ,  CORCORAN, Patrick, Henry ,  JAYCOX, Gary, Delmar

    IPC分类号： C08G18/42 ,  C09D175/04

    CPC分类号： C08G18/4291 ,  C08G18/4063 ,  C08G18/4261 ,  C08G18/792 ,  C09D175/06

    摘要： The invention is directed to a two-pack solvent-based ambient curable coating composition comprising a binder of a hydroxyl and cross-linking components. The hydroxyl component includes a linear or branched cycloaliphatic moiety-containing reactive oligomer or blend of oligomers with a weight average molecular weight not exceeding 3,000, a polydispersity not exceeding about 1.7 with at least 2 hydroxyl groups, at least 1, on average, being a primary hydroxyl group. The reactive oligomer is formed by the reaction of an oligomeric acid with monofunctional epoxy. The cross-linking component includes one or more of an oligomeric cross-linker containing at least 2 isocyanate groups. The coating composition of the invention is particularly suited in automotive refinish coatings.

    摘要翻译： 本发明涉及包含羟基粘合剂和交联组分的双组分溶剂型室温可固化涂料组合物。 羟基组分包括直链或支链含脂环族部分的反应性低聚物或重均分子量不超过3,000的低聚物共混物，多分散性不超过约1.7，具有至少2个羟基，至少1个平均为 伯羟基。 反应性低聚物通过低聚酸与单官能环氧树脂的反应而形成。 交联组分包括一种或多种含有至少2个异氰酸酯基团的低聚交联剂。 本发明的涂料组合物特别适用于汽车修补漆。