Fatty alkyl succinate ester and succinimide modified copolymers of
ethylene and an alpha olefin
    2.
    发明授权
    Fatty alkyl succinate ester and succinimide modified copolymers of ethylene and an alpha olefin 失效
    乙烯和α-烯烃的脂肪烷基琥珀酸酯和琥珀酰亚胺改性的共聚物

    公开(公告)号:US4171273A

    公开(公告)日:1979-10-16

    申请号:US777243

    申请日:1977-03-14

    摘要: Fatty alkyl succinate ester and succinimide modified copolymers of ethylene and an alpha-olefin, such as an ethylene-propylene copolymer, are useful as shear stable viscosity index (VI) improvers, dispersants and pour point depressants in lubricating oils. Especially useful is the succinate ester of mixtures of primary n-alkanols containing about 12 to about 18 carbon atoms and the N-(3-dimethylaminopropyl) succinimide derivative of the copolymer of ethylene and an alpha-olefin, such as an ethylene-propylene copolymer. This succinate ester-succinimide derivative is prepared by reacting the copolymer in an aromatic solvent with maleic anhydride in the presence of a free radical initiator, then esterifying the anhydride with a fatty alcohol or mixtures thereof in the presence of an acidic catalyst and finally converting any unreacted anhydride and half esters to the succinimide by reaction with a polyamine containing a primary amine. Additive concentrates containing 5 to 30 wt. % of the copolymer derivative in a solvent facilitate the introduction of the additive into a lubricating oil blend.

    摘要翻译: 乙烯和α-烯烃(例如乙烯 - 丙烯共聚物)的脂肪酸烷基酯琥珀酸酯和琥珀酰亚胺改性共聚物可用作润滑油中的剪切稳定粘度指数(VI)改进剂,分散剂和倾点下降剂。 特别有用的是含有约12至约18个碳原子的初级n-链烷醇与乙烯和α-烯烃共聚物的N-(3-二甲基氨基丙基)琥珀酰亚胺衍生物如乙烯 - 丙烯共聚物的混合物的琥珀酸酯 。 该琥珀酸酯 - 琥珀酰亚胺衍生物通过使芳香族溶剂中的共聚物与马来酸酐在自由基引发剂存在下反应,然后在酸性催化剂的存在下,使酸酐与脂肪醇或其混合物酯化,最后将任何 通过与含有伯胺的多胺反应,将未反应的酸酐和半酯与琥珀酰亚胺反应。 含有5〜30wt。 在溶剂中的共聚物衍生物的%有利于将添加剂引入到润滑油混合物中。

    Multifunctional copolymer and lubricating oil composition
    3.
    发明授权
    Multifunctional copolymer and lubricating oil composition 失效
    多功能共聚物和润滑油组成

    公开(公告)号:US5563118A

    公开(公告)日:1996-10-08

    申请号:US469101

    申请日:1995-06-06

    摘要: An additive composition comprising a graft and derivatized copolymer prepared from ethylene and at least one (C.sub.3 -C.sub.10) alpha- monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said (C.sub.3 -C.sub.10) alpha- monoolefin and from about 0 to 15 mole percent of said polyene having an average molecular weight ranging from about 5,000 to 500,000, which has been reacted with at least one olefinic carboxylic acid acylating agent to form one or more acylating reaction intermediates characterized by having a carboxylic acid acylating function within their structure and reacting said reaction intermediate with an amino-aromatic compound to form said graft derivatized copolymer, and a lubricating oil composition containing same are provided.

    摘要翻译: 一种添加剂组合物,其包含由乙烯和至少一种(C 3 -C 10)α-单烯烃和任选的选自非共轭二烯和三烯的多烯制备的接枝和衍生的共聚物,其包含约15至80摩尔%的乙烯, 约20至85摩尔%的所述(C 3 -C 10)α-单烯烃和约0至15摩尔%的所述多烯具有约5,000至500,000的平均分子量,其与至少一种烯属羧酸 酰化剂形成一种或多种酰化反应中间体,其特征在于在其结构内具有羧酸酰化作用,并使所述反应中间体与氨基 - 芳族化合物反应形成所述接枝衍生化共聚物,并提供含有其的润滑油组合物。

    Multifunctional copolymer and lubricating oil composition
    5.
    发明授权
    Multifunctional copolymer and lubricating oil composition 失效
    多功能共聚物和润滑油组成

    公开(公告)号:US5429757A

    公开(公告)日:1995-07-04

    申请号:US210534

    申请日:1994-03-18

    摘要: An additive composition comprising a graft and derivatized copolymer prepared from ethylene and at least one (C.sub.3 -C.sub.10) alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said (C.sub.3 -C.sub.10) alpha-monoolefin and from about 0 to 15 mole percent of said polyene having an average molecular weight ranging from about 5,000 to 500,000, which has been reacted with at least one olefinic carboxylic acid acylating agent to form one or more acylating reaction intermediates characterized by having a carboxylic acid acylating function within their structure and reacting said reaction intermediate with an amino-aromatic compound to form said graft derivatized copolymer, and a lubricating oil composition containing same are provided.

    摘要翻译: 一种添加剂组合物,其包含由乙烯和至少一种(C 3 -C 10)α-单烯烃和任选的选自非共轭二烯和三烯的多烯制备的接枝和衍生的共聚物,其包含约15至80摩尔%的乙烯, 约20至85摩尔%的所述(C 3 -C 10)α-单烯烃和约0至15摩尔%的所述多烯的平均分子量范围为约5,000至500,000,其已经与至少一种烯属羧酸 酰化剂形成一种或多种酰化反应中间体,其特征在于在其结构内具有羧酸酰化作用,并使所述反应中间体与氨基 - 芳族化合物反应形成所述接枝衍生化共聚物,并提供含有其的润滑油组合物。

    Multifunctional olefin copolymer and lubricating oil composition
    9.
    发明授权
    Multifunctional olefin copolymer and lubricating oil composition 失效
    多官能烯烃共聚物和润滑油组成

    公开(公告)号:US5200102A

    公开(公告)日:1993-04-06

    申请号:US801220

    申请日:1991-12-02

    IPC分类号: C08F8/34 C10M151/02

    摘要: An additive composition comprising a graft and derivatized copolymer prepared from ethylene and at least one C.sub.3 -C.sub.10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from about 15 to 80 mole percent of ethylene, from about 20 to 85 mole percent of said C.sub.3 -C.sub.10 alpha-monoolefin and from about 0 to 15 mole percent of said polyene having an average molecular weight ranging from about 5,000 to 500,000, which has been reacted with at least one olefinic carboxylic acid acylating agent to form one or more acylating reaction intermediates characterized by having a carboxylic acid acylating function within their structure and reacting said reaction intermediate with an amino alkylthio thiadiazole to form said graft derivatized copolymer, and a lubricating oil composition containing same are provided.

    摘要翻译: 一种添加剂组合物,其包含由乙烯和至少一种C 3 -C 10α-单烯烃和任选的选自非共轭二烯和三烯的多烯制备的接枝和衍生的共聚物,所述非共轭二烯和三烯包含约15至80摩尔%的乙烯,约20 至85摩尔%的所述C 3 -C 10α-单烯烃和约0至15摩尔%的平均分子量为约5,000至500,000的所述多烯,其已经与至少一种烯属羧酸酰化剂反应形成 一种或多种酰化反应中间体,其特征在于在其结构内具有羧酸酰化作用,并使所述反应中间体与氨基烷硫基噻二唑反应形成所述接枝衍生化共聚物,并提供含有其的润滑油组合物。