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    • 2. 发明申请
    • SELF-COALESCING LATEX
    • 自我评估
    • WO2012158703A1
    • 2012-11-22
    • PCT/US2012/037963
    • 2012-05-15
    • BENJAMIN MOORE & CO.GHARAPETIAN, HrireTILARA, NavinSHEERIN, Robert
    • GHARAPETIAN, HrireTILARA, NavinSHEERIN, Robert
    • C08K5/00C09D175/04
    • C08L33/12C09D133/00C09D133/12
    • Self-coalescing latexes that incorporate film forming polymers that are low molecular weight polymers that are compatible with the latex and act as thin plasticizers penetrating through the remainder of the latex particle and aiding in the coalescence of the remaining polymers. The self-coalescing latex is a sequentially polymerized polymer having at least a core, a shell and a skin. The film forming polymers are formed of monomers substantially the same as the monomers of the shell but having average weighted molecular weights substantially less than the polymers of the shell. The method of polymerizing the self-coalescing latex results from the addition of a substantial amount of chain transfer agent to a remaining portion, about 15% or less, of the monomer pre-emulsion prior to polymerization. Paint compositions incorporate the self-coalescing latexes that are substantially free of coalescing agents or aids.
    • 自聚合胶乳,其结合成膜聚合物,其是与胶乳相容的低分子量聚合物,并且用作穿透剩余的胶乳颗粒并有助于其余聚合物聚结的薄增塑剂。 自聚结胶乳是至少具有核心,壳和皮肤的顺序聚合的聚合物。 成膜聚合物由与壳单体基本相同的单体形成,但具有基本上小于壳的聚合物的平均加权分子量。 聚合自聚结胶乳的方法是由于在聚合之前将大量的链转移剂添加到约15%或更少的单体预乳液的剩余部分中。 涂料组合物包含基本上不含聚结剂或助剂的自聚结胶乳。