Pulverulent binders
    10.
    发明授权
    Pulverulent binders 失效
    粉末粘合剂

    公开(公告)号:US3935138A

    公开(公告)日:1976-01-27

    申请号:US473391

    申请日:1974-05-28

    摘要: Powdered coating agent for use in the sprayed powder process comprising a mixture ofA. free hydroxyl groups containing copolymers having been reacted with an acid anhydride;B. a cross-linker such as triglycidyl isocyanurate or bis- or tris-oxazolines and optionallyC. auxiliary agents such as pigments and levelling agents.The copolymer contains polymerized units of30 to 85% by weight of styrene or derivatives thereof or methylmethacrylate or mixtures thereof;5 to 60% by weight of acrylic or methacrylic esters excepted methylmethacrylate and10 to 30% by weight of hydroxyalkylester of acrylic or methacrylic acid, said copolymer having been reacted with an aliphatic or cycloaliphatic dicarboxylic acid anhydride;4 to 20 parts by weight of the cross-linker are employed for 96 to 80 parts by weight of the acidified copolymer.

    摘要翻译: 用于喷雾粉末方法的粉末涂料,其包含含有与酸酐反应的共聚物的A.游离羟基的混合物; B.交联剂如三缩水甘油基异氰脲酸酯或双 - 或三 - 恶唑啉和任选的C.辅助剂如颜料和流平剂。