Copolymer dispersants via vinyl terminated propene polymers
    1.
    发明授权
    Copolymer dispersants via vinyl terminated propene polymers 失效
    共聚物分散剂通过乙烯基封端的丙烯聚合物

    公开(公告)号:US5616153A

    公开(公告)日:1997-04-01

    申请号:US538310

    申请日:1995-10-03

    摘要: A novel copolymer of an unsaturated acidic reactant and an atactic vinyl terminated propene polymer (VTPP) and its use in preparation of fuel and lubricant additives is taught. The VTPP has a major amount of polymer chains containing terminal vinyl unsaturation, a number average molecular weight of at least 500, and comprises at least 70 weight per cent propene and 0 to 30 weight per cent of at least one olefin selected from the group consisting of C.sub.2 and C.sub.4 to C.sub.10 olefins. The unsaturated acidic reactant comprises at least one unsaturated C.sub.4 to C.sub.10 carboxylic or dicarboxylic acid or anhydride. An oil soluble dispersant additive of the invention useful in oleaginous compositions is prepared by contacting the atactic VTPP copolymer with at least one nucleophilic reagent selected from the group consisting of amines, alcohols, metal reactants and mixtures thereof under conditions effective to form adducts of the nucleophilic reagent with the copolymer. The novel dispersants made from the copolymers and terpolymers of the invention can be polymeric succinic ester-amide dispersants, polymeric succinimide dispersants, polymeric succinic amide-triazole dispersants, or polymeric succinic triazole dispersants. Fuel and lubricant compositions containing such additives are a part of the invention.

    摘要翻译: 教导了不饱和酸性反应物和无规乙烯基封端的丙烯聚合物(VTPP)的新型共聚物及其在制备燃料和润滑剂添加剂中的用途。 VTPP具有大量含有末端乙烯基不饱和键,数均分子量至少为500的聚合物链,并且包含至少70重量%的丙烯和0至30重量%的至少一种选自以下的烯烃: 的C2和C4至C10烯烃。 不饱和酸性反应物包含至少一种不饱和C 4至C 10羧酸或二羧酸或酸酐。 通过使无规VTPP共聚物与选自胺,醇,金属反应物及其混合物的至少一种亲核试剂在有效形成亲核的加合物的条件下接触来制备本发明的油性组合物中的油溶性分散剂添加剂 试剂与共聚物。 由本发明的共聚物和三元共聚物制成的新型分散剂可以是聚合琥珀酸酯 - 酰胺分散剂,聚合琥珀酰亚胺分散剂,聚合琥珀酰胺 - 三唑分散剂或聚合琥珀酸三唑分散剂。 包含这些添加剂的燃料和润滑剂组合物是本发明的一部分。