利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

195 条记录 (耗时 0.018 秒)

    Aqueous dispersions of partially cross-linked emulsion copolymers
    7.
    发明公开
    Aqueous dispersions of partially cross-linked emulsion copolymers 失效
    部分交联乳液共聚物的均匀分散体

    公开(公告)号：EP0268913A3

    公开(公告)日：1989-11-02

    申请号：EP87116471.1

    申请日：1987-11-07

    申请人： DeSoto, Inc.

    发明人： Sekmakas, Kazys

    IPC分类号： C08J3/06 ,  C08F6/22 ,  C09D5/44

    CPC分类号： C08F6/22 ,  C08J3/05 ,  C09D5/4407

    摘要： Aqueous dispersions of partially cross-linked copolymer particles useful in aqueous coating compositions is produced by copolymerizing in aqueous emulsion a mixture of: (A) from 1% to 30% of polyethylenically unsaturated monomer; (B) from 3% to 30% of hydroxy-functional monoethylenically unsaturated monomer; (C) from 0.5% to 10% of a salt-forming monoethylenically unsaturated monomer selected from monoethylenic carboxylic acid monomer and monoethylenic amine monomer; and (D) the balance of the copolymer consisting essentially of copolymerizable monoethylenically unsaturated monomer, preferably nonreactive monomer such as vinyl acetate. The copolymer particle-containing suspension produced by the emulsion copolymerization is coagulated with water immiscible organic solvent which is a poor solvent for the copolymer, such as butanol, to provide a liquid phase containing coagulating solvent and the water and surfactants used in the emulsion copolymerization and a coagulum of the copolymer particles in the suspension. This coagulum, after removal of the liquid phase, is dispersed in water with the aid of a salt-forming volatile acid or a volatile base and a water-miscible organic solvent, said last-named solvent being present in the aqueous dispersion in an amount insufficient by itself to dissolve the coagulum in the absence of the salt-forming acid or base.

    摘要翻译： 用于水性涂料组合物的部分交联的共聚物颗粒的水分散体是通过在水性乳液中共聚合得到的：（A）1％至30％的多烯属不饱和单体的混合物; （B）3〜30％的羟基官能单烯属不饱和单体; （C）0.5〜10％选自单烯羧酸单体和单烯胺单体的成盐单烯属不饱和单体; 和（D）基本上由可共聚的单烯属不饱和单体，优选非反应性单体如乙酸乙烯酯组成的共聚物的余量。 通过乳液共聚制得的含共聚物颗粒的悬浮液与用于共聚物如丁醇的不良溶剂的水不混溶的有机溶剂凝结，以提供含有液相的凝结溶剂和用于乳液共聚的水和表面活性剂， 悬浮液中共聚物颗粒的凝结物。 这种凝结物在除去液相后，借助于形成盐的挥发性酸或挥发性碱和水混溶性有机溶剂分散在水中，所述最终名称的溶剂以水分散体的量存在 本身不足以在不存在形成酸的酸或碱的情况下溶解凝固物。

    Thermosetting fluorocarbon polymer coatings
    9.
    发明公开
    Thermosetting fluorocarbon polymer coatings 失效
    热稳定氟聚合物涂料

    公开(公告)号：EP0231910A3

    公开(公告)日：1989-05-10

    申请号：EP87101343.9

    申请日：1987-01-31

    申请人： DeSoto, Inc.

    发明人： Tortorello, Anthony J. ,  Higginbotham, Clark A.

    IPC分类号： C09D3/78 ,  C08L27/16

    CPC分类号： C09D127/12 ,  C08L33/14 ,  C08L61/20 ,  C09D127/16 ,  C08L2666/02 ,  C08L2666/04

    摘要： There is disclosed a thermosetting solvent solution coating composition comprising volatile organic solvent having dissolved therein at least about 45% of a fluorocarbon polymer together with at least about 10% of an hydroxy-functional organic soluble copolymer of from 3% to 8°0 of 2-hydroxyethyl acrylate, balance consisting essentially of nonreactive monoethylenically unsaturated monomers, and an aminoplast curing agent in an amount to cure the hydroxy-functional copolymer, These coatings exhibit improved water spot resistance and minimum color change and gloss reduction on exterior exposure.

    Anionic electrocoat compositions containing epoxy phosphates
    10.
    发明公开
    Anionic electrocoat compositions containing epoxy phosphates 失效
    含有环氧磷酸酯的电离电极组合物

    公开(公告)号：EP0240876A3

    公开(公告)日：1988-08-31

    申请号：EP87104604

    申请日：1987-03-27

    申请人： DeSoto, Inc.

    发明人： Sekmakas, Kazys ,  Parenti, Aurelio

    IPC分类号： C09D05/44

    CPC分类号： C09D5/4407 ,  C09D5/4484

    摘要： Thermosetting aqueous anionic electrocoating composition are disclosed which comprise a carboxyl-functional anionic polymer dispersed in water with the aid of water miscible organic solvent and a volatile base, and from about 1% to about 5%, based on the weight of the polymer content of the composition, of an oxirane-free epoxy phosphate, this epoxy phosphate being produced by slowly and incrementally adding a resinous polyepoxide to a solvent solution containing from 0.05 to 0.9 mole of orthophosphoric acid per oxirane equivalent in the polyepoxide together with sufficient water to hydrolyze all of the oxirane functionality which is not consumed by the orthophosphoric acid. These epoxy phosphates improve the corrosion resistance of electrodeposited cured coatings without objectionably wrinkling their surface.