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    • 7. 发明公开
    • Improved polymeric composition
    • Verbesserte Polymerzusammensetzung
    • EP1234839A1
    • 2002-08-28
    • EP02251101.8
    • 2002-02-19
    • ROHM AND HAAS COMPANY
    • Lorah, Dennis PaulSlone, Robert Victor
    • C08F20/12C08F4/34C09D133/06C09J133/06
    • C08F20/12C08F4/34Y10T428/28Y10T428/31551Y10T428/31855Y10T428/31935Y10T428/31938Y10T442/631
    • An aqueous composition suitable for use, when dry, as an improved elastomeric coating, caulk, sealant, fabric treatment, or pressure sensitive adhesive is provided including a predominantly acrylic aqueous emulsion polymer, the polymer having a glass transition temperature (Tg) from -90 °C to 20 °C, formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and 0-7.5%, by weight based on the total weight of said polymer, ethylenically unsaturated acid monomer until 90-99.7 % of said monomers by weight, based on the total weight of said polymer, has been converted to polymer and subsequently at least half of the remaining monomer is converted to polymer in the presence of 0.01-0.099 %, by weight based on the total weight of said polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms or, alternatively, the polymer is formed in the presence of 0.01-1.0%, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least 5 Carbon atoms and, optionally, at least one other oxidant. A method for preparing the emulsion polymer, a method for coating a substrate to provide an elastomeric coating on a substrate, a method for applying an aqueous caulk or sealant composition to a substrate, a method for providing a treated fabric, and a method for providing a pressure sensitive adhesive on a substrate are also provided.
    • 提供适用于干燥时作为改进的弹性体涂层,填缝剂,密封剂,织物处理或压敏粘合剂的水性组合物,其包括主要为丙烯酸的水性乳液聚合物,所述聚合物的玻璃化转变温度(Tg)为-90 通过至少一种烯键式不饱和非离子丙烯酸单体的自由基聚合形成,基于所述聚合物的总重量为0-7.5重量%的烯键式不饱和酸单体形成,直到所述聚合物的所述烯属不饱和酸单体的90-99.7% 基于所述聚合物的总重量计,单体重量已经转化为聚合物,随后在0.01-0.099%(重量)的存在下,剩余单体的至少一半以所述聚合物的总重量计转化为聚合物 ,叔烷基过氧化氢,叔烷基过氧化物或叔烷基过酸酯,其中叔烷基包括至少5个碳原子,或者在0.01-1.0%的存在下形成聚合物 基于聚合物,叔烷基过氧化氢,叔烷基过氧化物或叔烷基过酸酯的总重量,其中t-烷基包括至少5个碳原子和任选的至少一种其它氧化剂。 一种制备乳液聚合物的方法,一种用于涂覆基材以在基材上提供弹性体涂层的方法,将水性填隙料或密封剂组合物施用于基材的方法,提供经处理的织物的方法和提供 还提供了在基底上的压敏粘合剂。