Polymerization process and product
    21.
    发明授权
    Polymerization process and product 失效
    聚合工艺和产品

    公开(公告)号:US4443568A

    公开(公告)日:1984-04-17

    申请号:US314520

    申请日:1981-10-26

    Inventor: James T. K. Woo

    CPC classification number: C08F283/10 C08F285/00

    Abstract: The product and process is directed to polymerizing second stage ethylenically unsaturated monomers within an aqueous dispersion of a preformed epoxy based resinous material comprising a mixture of graft epoxy polymer containing grafted addition polymer grafted to the epoxy backbone, ungrafted epoxy polymer, and ungrafted addition polymer uniformly dispersed in water wherein the second stage monomers are polymerized in the presence of at least 0.1% of benzoin derivative reducing agent based on monomer weight in combination with a peroxide polymerization initiator.

    Abstract translation: 该产品和方法涉及在预先形成的环氧基树脂材料的水性分散体内聚合第二阶段烯键式不饱和单体,其包含接枝环氧聚合物的混合物,该接枝环氧聚合物含有接枝到环氧主链的接枝加成聚合物,未接枝的环氧聚合物和未接枝的加成聚合物均匀 分散在水中,其中第二阶段单体在与过氧化物聚合引发剂组合的基础上以至少0.1%的苯偶姻衍生物还原剂存在下聚合。

    Cathodic electrocoating process
    22.
    发明授权
    Cathodic electrocoating process 失效
    阴极电子工艺

    公开(公告)号:US4066525A

    公开(公告)日:1978-01-03

    申请号:US642694

    申请日:1975-12-22

    Abstract: Heat cured coatings cathodically electrodeposited from an aqueous dispersion of (a) an ionized reaction product of an epoxy resin and a monoamino alcohol or phenol, said reaction product also having a pendant hydrocarbon group, (b) an acid-functional aminoplast resin, and (c) a water soluble acid solubilizer, where the dispersion is free from water soluble acid which will be retained in the heat cured resinous coating are found to provide exceptional resistance to corrosion of ferrous metal substrates upon exposure to salt spray or detergent solutions.

    Abstract translation: 由(a)环氧树脂和单氨基醇或苯酚的离子化反应产物的水性分散体阴极电沉积的热固化涂层,所述反应产物还具有侧链烃基,(b)酸官能氨基塑料树脂和( c)水溶性酸增溶剂,其中分散体不含水溶性酸,其将保留在热固化的树脂涂料中,在暴露于盐雾或洗涤剂溶液中时,可以提供优异的耐黑色金属底物腐蚀性。

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