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    • 3. 发明专利
    • COATING COMPOSITION
    • JPH01242669A
    • 1989-09-27
    • JP7114788
    • 1988-03-24
    • NIPPON PAINT CO LTD
    • TAKAGAWA RYOZOTANABE HISANORIOSUGI KOJIEGUCHI YOSHIOASAKURA KOJI
    • C09D5/00
    • PURPOSE:To obtain the title composition improved in a capability of forming a high-solid coating and sag resistance and improved in the smoothness, toughness and appearance of a film, by mixing a film-forming polymer having a functional group reactive with a crosslinking agent with a volatile organic liquid diluent, specified fine polymer particles and a crosslinking agent. CONSTITUTION:A polymer component is obtained by mixing 50-99.5wt.% film- forming polymer (A) having a functional group reactive with a crosslinking agent, such as an acrylic (co)polymer having a number-average MW of 1000-10000 and a side chain of formula I (wherein n is 3-50), with 50-0.5 pt.wt. fine polymer particles (B) obtained by copolymerizing at least two alpha,beta- ethylenically unsaturated monomers in an aqueous or organic solvent in the presence of a resin having a group of formula II [wherein R is a (substituted) 1-6C alkylene or phenylene, and Y is COOH or SO3OH] and being insoluble but stably dispersible in a combination of component A with component C. 100 pts.wt. obtained polymer component is mixed with 5-100 pts.wt. crosslinking agent (C) such as aminoplast resin, and 10-2000 pts.wt. organic volatile liquid diluent (D) for carrying component A per 100 pts.wt. total of components A, B and C.