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    • 75. 发明授权
    • Comb cationic polymers and aqueous dispersions thereof
    • 梳阳离子聚合物及其水分散体
    • US4501855A
    • 1985-02-26
    • US316960
    • 1981-10-29
    • Gerry K. Noren
    • Gerry K. Noren
    • C08L57/00C08L33/26
    • C08L57/00Y10S525/911Y10S525/916
    • Comb cationic polymers are disclosed which are constituted by amine polymers rendered cationic and water dispersible with the aid of a solubilizing acid. The amine polymers are the product of reaction of: (1) a soluble polymer having an average molecular weight in the range of about 500 to about 10,000 and having a plurality of functional groups reactive with carboxyl or amine functionality (such as epoxy groups as supplied by an epoxidized polybutadiene); with (2) a solution addition copolymer of monoethylenically unsaturated monomers containing copolymerized tertiary amine monomer. The copolymer is terminated with a single carboxy group or a single amino hydrogen atom, and it is free of reactive groups capable of reacting with the functional groups of the soluble polymer, except for the single carboxyl group or the single amino hydrogen atom. The products are particularly useful in cationic electrocoating where they provide improved stability and better Coulombic efficiency.
    • 公开了阳离子聚合物,其由通过增溶酸辅助的阳离子和水分散的胺聚合物构成。 胺聚合物是以下物质的反应产物:(1)平均分子量在约500至约10,000范围内且具有多个与羧基或胺官能团反应的官能团的可溶性聚合物(例如所提供的环氧基团 通过环氧化聚丁二烯); 与(2)含共聚叔胺单体的单烯属不饱和单体的溶液加成共聚物。 共聚物用单个羧基或单个氨基氢原子封端,除了单个羧基或单个氨基氢原子之外,它不含能够与可溶性聚合物的官能团反应的反应性基团。 该产品在阳离子电涂中特别有用,它们提供了更好的稳定性和更好的库仑效率。