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    • 8. 发明授权
    • Alkyl phenol-sulfur condensates as fuel and lubricating oil additives
    • 烷基酚 - 硫缩合物作为燃料和润滑油添加剂
    • US5236608A
    • 1993-08-17
    • US561895
    • 1990-08-02
    • David J. MartellaJohn J. Jaruzelski
    • David J. MartellaJohn J. Jaruzelski
    • C08G75/14C10L1/24C10M151/04
    • C10L1/2475C08G75/14C10M151/04C10M2203/10C10M2203/102C10M2221/04C10N2240/04C10N2240/042C10N2240/044C10N2240/046C10N2240/06C10N2240/08C10N2240/10C10N2240/101C10N2240/102C10N2240/103C10N2240/104C10N2240/106C10N2240/40
    • Additives for improving the low temperature flow properties and oxidative stability of hydrocarbon oils are disclosed, which comprise the condensation reaction product of alkylated phenol and sulfurizing agent, wherein:(a) the polymer composition has a number average molecular weight of at least about 3,000 and a molecular weight distribution of at least about 1.5;(b) in the alkylated phenol reactant the alkyl groups (i) are essentially linear; (ii) have between 6 and 50 carbon atoms; and (iii) have an average number of carbon atoms between about 12 and 26; and(c) not more than about 10 mole percent of the alkyl groups on the alkylated phenol have less than 12 carbon atoms and not more than about 10 mole percent of the alkyl groups on the alkylated phenol have more than 26 carbon atoms. The additives may also be produced in a branched backbone form in which monomer reactants are compolymerized with certain tri- or tetrafunctional comonomers. Blends of these additives with various hydrocarbon oils, and particularly various middle distillates and lubricating oil compositions, whose low temperature flow properties and oxidative stability are significantly improved thereby, are also disclosed.
    • 公开了用于改进烃油的低温流动性能和氧化稳定性的添加剂,其包括烷基化苯酚和硫化剂的缩合反应产物,其中:(a)聚合物组合物的数均分子量为至少约3,000, 分子量分布至少约1.5; (b)在烷基化酚反应物中,烷基(i)基本上是线性的; (ii)具有6至50个碳原子; 和(iii)平均碳原子数在约12和26之间; 和(c)不超过约10摩尔%的烷基化苯酚上的烷基具有小于12个碳原子,不超过约10摩尔%的烷基化苯酚上的烷基具有多于26个碳原子。 添加剂也可以以支链骨架形式制备,其中单体反应物与某些三官能或四官能团共聚单体共聚。 还公开了这些添加剂与各种烃油的混合物,特别是各种中间馏分和润滑油组合物,其低温流动性能和氧化稳定性由此显着提高。