Alkaline earth metal salt dispersions in acrylic polymers
    479.
    发明授权
    Alkaline earth metal salt dispersions in acrylic polymers 失效
    丙烯酸聚合物中的碱土金属盐分散体

    公开(公告)号:US4123368A

    公开(公告)日:1978-10-31

    申请号:US780931

    申请日:1977-03-24

    Abstract: This invention relates to colloidal dispersions of an alkaline earth metal salt in an oil-soluble acrylic polymer which is polymerized from a monomer system of at least one alkyl or hetero-substituted alkyl ester of an acrylic monomer selected from the group consisting of methacrylates and acrylates represented by the formula: ##STR1## wherein R.sup.1 is a --CH.sub.3 or --H radical, and R.sup.2 is selected from the group consisting of C.sub.1-30 alkyl and hetero-substituted alkyl radicals. This invention also relates to colloidal dispersions as described hereinabove wherein the monomer system further includes at least one non-acrylic polymerizable ethylenically unsaturated nitrogen-containing compound. Preferred polymerizable ethylenically unsaturated nitrogen-containing compounds are those selected from the group consisting of 2- and 4-vinylpyridines and N-vinyl-2-pyrrolidinones. Further, this invention relates to finished lubricating oil compositions wherein the metal salt-polymer dispersions are incorporated into lubricating oil compositions, either alone or in combination with other oil additives, whereby the metal salt-polymer colloidal dispersions impart improved properties to the finished lubricating oil compositions.

    Abstract translation: 本发明涉及一种油溶性丙烯酸类聚合物中的碱土金属盐的胶态分散体,其由选自甲基丙烯酸酯和丙烯酸酯的丙烯酸单体的至少一种烷基或杂取代的烷基酯的单体体系聚合 由式(I)表示,其中R 1是-CH 3或-H基,R 2选自C 1-30烷基和杂取代的烷基。 本发明还涉及如上所述的胶态分散体,其中单体体系还包括至少一种非丙烯酸可聚合的烯属不饱和含氮化合物。 优选的可聚合烯属不饱和含氮化合物是选自2-和4-乙烯基吡啶和N-乙烯基-2-吡咯烷酮的那些。 此外,本发明涉及完成的润滑油组合物,其中金属盐 - 聚合物分散体单独或与其它油添加剂组合地加入到润滑油组合物中,由此金属盐 - 聚合物胶体分散体赋予成品润滑油改善的性能 组合物。

Patent Agency Ranking