Dispersant/antioxidant VII lubricant additive
    3.
    发明授权
    Dispersant/antioxidant VII lubricant additive 失效
    分散剂/抗氧化剂VII润滑剂添加剂

    公开(公告)号:US4941985A

    公开(公告)日:1990-07-17

    申请号:US444224

    申请日:1989-12-01

    摘要: A dispersant/antioxidant bound VII polymethacrylate lubricant additive composition prepared by:(a) combining a polyunsaturated monomer with (C.sub.1 -C.sub.20) alkyl monomers and, optionally, a dispersant monomer in an oil solvent to provide an intermediate reaction mixture;(b) stirring and purging the reaction mixture;(c) heating the purged mixture and adding a radical polymerization catalyst to the purged mixture;(d) heating the mixture to a sufficiently high temperature to remove any excess of the polymerization catalyst therefrom;(e) (optionally) recovering the intermediate product polymethacrylate;(f) combining the intermediate product with an aromatic nitroso compound to provide an intermediate reaction mixture;(g) stirring and purging the intermediate reaction mixture; and(h) recovering from the purged mixture the product polymethacrylate.

    摘要翻译: 通过以下步骤制备的分散剂/抗氧化剂结合的Ⅶ聚甲基丙烯酸酯润滑剂添加剂组合物:(a)将多不饱和单体与(C1-C20)烷基单体和任选的分散剂单体在油溶剂中混合以提供中间反应混合物; (b)搅拌和吹扫反应混合物; (c)加热清洗的混合物并向自动化的混合物中加入自由基聚合催化剂; (d)将混合物加热到足够高的温度以从其中除去任何过量的聚合催化剂; (e)(任选地)回收中间产物聚甲基丙烯酸酯; (f)将中间产物与芳族亚硝基化合物组合以提供中间反应混合物; (g)搅拌和吹扫中间反应混合物; 和(h)从吹扫的混合物中回收产物聚甲基丙烯酸酯。

    Dispersant/antioxidant VII lubricant additive
    8.
    发明授权
    Dispersant/antioxidant VII lubricant additive 失效
    分散剂/抗氧化剂VII润滑剂添加剂

    公开(公告)号:US5013468A

    公开(公告)日:1991-05-07

    申请号:US419407

    申请日:1989-10-10

    摘要: A dispersant/antioxidant bound VII polymethacrylate lubricant additive composition prepared by:(a) reacting a methacrylamide with an amino-alkyl, methacrylamide, an alkyl methacrylate and an oil solvent to provide a intermediate reaction mixture;(b) stirring and purging the reaction mixture;(c) heating the purged mixture and adding a mercaptan and a radical polymerization catalyst to the purged mixture;(d) heating the mixture to a sufficiently high temperature to remove any excess of the polynmerization catalyst therefrom; and(e) recovering the product polymethacrylate.

    摘要翻译: 通过以下步骤制备的分散剂/抗氧化剂结合的Ⅶ聚甲基丙烯酸酯润滑剂添加剂组合物:(a)使甲基丙烯酰胺与氨基 - 烷基,甲基丙烯酰胺,甲基丙烯酸烷基酯和油溶剂反应以提供中间反应混合物; (b)搅拌和吹扫反应混合物; (c)加热清洗的混合物并向清洗的混合物中加入硫醇和自由基聚合催化剂; (d)将混合物加热到足够高的温度以从其中除去任何过量的多元催化剂催化剂; 和(e)回收产物聚甲基丙烯酸酯。

    Dispersant/antioxidant VII lubricant additive
    10.
    发明授权
    Dispersant/antioxidant VII lubricant additive 失效
    分散剂/抗氧化剂VII润滑剂添加剂

    公开(公告)号:US5440000A

    公开(公告)日:1995-08-08

    申请号:US276503

    申请日:1994-07-18

    摘要: A dispersant/antioxidant bound, Viscosity Index-improving methacrylate polymer composition having a molecular weight ranging from about 20,000 to about 2,500,000. The composition comprises a base oil and methacrylate monomers and antioxidant monomer with inherent dispersancy. The composition being prepared by:(a) mixing a antioxidant/dispersant monomer with alkyl methacrylates and an oil solvent to provide an intermediate reaction mixture;(b) stirring and purging said reaction mixture by nitrogen ebullation for about 25-35 minutes at about 200 ml/min;(c) heating said purged mixture to about 75.degree.-85.degree. C.;(d) adding both a chain transfer agent and a radical polymerization catalyst to said heated mixture and then after about 2.0 hours adding an additional amount of said catalyst to said heated mixture, and then heating said heated mixture for an additional 2.0 hours;(e) increasing the temperature of said heated mixture to about 95.degree.-105.degree. C. and maintaining said mixture at such temperature for a sufficient period of time to remove any excess of said polymerization catalyst; and(f) recovering the product methacrylate polymer.

    摘要翻译: 分散剂/抗氧化剂结合,粘度指数改进甲基丙烯酸酯聚合物组合物,其分子量范围为约20,000至约2,500,000。 该组合物包含基础油和甲基丙烯酸酯单体和具有固有分散性的抗氧化剂单体。 该组合物通过以下步骤制备:(a)将抗氧化剂/分散剂单体与甲基丙烯酸烷基酯和油溶剂混合以提供中间反应混合物; (b)以大约200ml / min的氮气沸腾搅拌和吹扫所述反应混合物约25-35分钟; (c)将所述清洗的混合物加热至约75-85℃。 (d)向所述加热的混合物中加入链转移剂和自由基聚合催化剂,然后在约2.0小时之后向所述加热的混合物中加入额外量的所述催化剂,然后再加热所述加热的混合物2.0小时; (e)将所述加热的混合物的温度升至约95-105℃,并将所述混合物在该温度下保持足够的时间以除去任何过量的所述聚合催化剂; 和(f)回收甲基丙烯酸甲酯聚合物。