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    • 1. 发明专利
    • Highly crosslinked polymer particle and coating composition containing the same
    • 高交联聚合物颗粒和包含它的涂料组合物
    • JP2007254754A
    • 2007-10-04
    • JP2007134821
    • 2007-05-21
    • Ppg Ind Ohio Incピーピージー インダストリーズ オハイオ, インコーポレイテッド
    • SWARUP SHANTIENDLICH BRIANHALEY M FRANKKANIA CHARLES MOLSON KURT GPAGAC EDWARD SRAGUNATHAN KALIAPPA G
    • C08L33/00C09D4/06C08F2/24C08F220/00C09D5/00C09D7/12
    • C08F2/24C09D7/65
    • PROBLEM TO BE SOLVED: To provide a thermosetting water-based coating composition useful as original finishing, slightly containing VOC (volatile organic compound) material or HAP (hazard atmospheric pollutant) material or containing no such materials, giving desired characteristics of externals, having most preferable shear thinning flow profiles, having high flip-flop but not spotted, giving smooth externals and containing metal flake colorant. SOLUTION: A latex emulsion includes crosslinked polymeric microparticles dispersed in an aqueous continuous phase. The microparticles are prepared from a monomer mixture of a crosslinking monomer, a monomer having hydrophilic functional groups, and one or more other monomers. A thermosetting composition that includes a first reactant having reactive functional groups, a curing agent that has at least two functional groups reactive with the functional groups of the first reactant, and the latex emulsion of crosslinked polymeric microparticles dispersed in an aqueous continuous phase are also provided. The thermosetting composition may be used to coat a substrate. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供用作原始精加工的热固性水性涂料组合物,略微含有VOC(挥发性有机化合物)材料或HAP(危害大气污染物)材料或不含这种材料,具有期望的外部特性 ,具有最优选的剪切稀化流动分布,具有高触发器但没有点样,给出平滑的外部和包含金属片状着色剂。 解决方案:胶乳乳液包括分散在水相连续相中的交联聚合物微粒。 微粒由交联单体,具有亲水性官能团的单体和一种或多种其它单体的单体混合物制备。 还提供一种热固性组合物,其包括具有反应性官能团的第一反应物,具有至少两个与第一反应物的官能团反应的官能团的固化剂和分散在水性连续相中的交联聚合物微粒的胶乳乳液 。 热固性组合物可用于涂覆基材。 版权所有(C)2008,JPO&INPIT
    • 3. 发明申请
    • AQUEOUS DISPERSIONS OF POLYMERIC MICROPARTICLES AND COATING COMPOSITIONS CONTAINING SAME
    • 聚合物微粒和含有相同组成的涂料组合物的均匀分散体(AQUEOUS DISPERSIONS POLYMERIC MICROPARTICLES AND COATING COMPOSITIONS)
    • WO0172909A3
    • 2002-03-21
    • PCT/US0106612
    • 2001-03-01
    • PPG IND OHIO INC
    • SWARUP SHANTIPAGAC EDWARD SRAGUNATHAN KALIAPPA G
    • C08F265/06C08F285/00C09D7/12B05D7/00C09D5/02C09D151/06
    • C08F285/00C08F265/06C08L33/08C08L33/10C08L33/26C09D7/65C09D7/70C08F2/22C08F220/10
    • An aqueous dispersion including polymeric microparticles having a functionality adapted to react with a crosslinking agent is provided. The microparticles are prepared in two or more stages by emulsion polymerization and include a first stage uncrosslinked polymerization reaction product and a final stage crosslinked polymerization reaction product having a glass transition temperature greater than 25 DEG C. The first stage uncrosslinked reaction product is formed from reactants at least one of which is an acid functional group-containing polymerizable, ethylenically unsaturated monomer. The second stage crosslinked reaction product is formed from reactants which include at least one polymerizable, ethylenically unsaturated monomer having two or more sites of reactive unsaturation, and/or at least one ethylenically unsaturated monomer having at least one self-reactive site. Curable compositions which contain the aqueous dispersions as well as multi-component composite coating compositions are also provided. Further provided are substrates coated with the aforementioned compositions.
    • 提供包含具有适于与交联剂反应的官能团的聚合物微粒的水性分散体。 通过乳液聚合在两个或更多个阶段制备微粒,并且包括第一级未交联聚合反应产物和玻璃化转变温度大于25℃的最终级交联聚合反应产物。第一级未交联反应产物由反应物形成 其中至少一个是含酸官能团的可聚合的烯属不饱和单体。 第二阶段交联反应产物由包含至少一个具有两个或多个反应性不饱和位点的可聚合烯属不饱和单体和/或至少一种具有至少一个自反应位点的烯属不饱和单体的反应物形成。 还提供了含有水分散体的固化组合物以及多组分复合涂料组合物。 进一步提供涂覆有上述组合物的基材。