Lube oil dispersant of improved odor and antioxidant properties
    1.
    发明授权
    Lube oil dispersant of improved odor and antioxidant properties 失效
    润滑油分散剂具有改善的气味和抗氧化性能

    公开(公告)号:US3910844A

    公开(公告)日:1975-10-07

    申请号:US33091473

    申请日:1973-02-09

    Applicant: TEXACO INC

    Abstract: In the method of preparing sulfurized, alkoxylated, inorganic phosphorus acid free, steam hydrolyzed polyalkene-P2S5 reaction product useful as a detergent-dispersant in lubricating oil compositions of improved antioxidant and odor properties comprising contacting polyalkene and P2S5 in the presence of a catalytic amount of sulfur to form the polyalkene-P2S5 reaction product, contacting the resultant polyalkene-P2S5 reaction product with steam to form an inorganic phosphorus acid containing hydrolyzed polyalkene-P2S5 reaction product, removing inorganic phosphorus acid from the hydrolyzed polyalkene-P2S5 reaction product, contacting the inorganic acid free, hydrolyzed polyalkene-P2S5 reaction product with alkylene oxide, the improvement which comprises the step selected from the group consisting of (1) contacting said inorganic acid free, steam hydrolyzed polyalkene-P2S5 intermediate product with added sulfur, and (2) contacting the alkoxylated, inorganic phosphorus acid free, steam hydrolyzed polyalkene-P2S5 reaction product with added sulfur. The invention is also directed to the resultant sulfurized alkoxylated product and lubricant compositions thereof.

    Abstract translation: 在制备硫化,烷氧基化,无机磷酸无水的蒸汽水解聚烯烃-P2S5反应产物的方法中,可用作改进的抗氧化和气味性质的润滑油组合物中的洗涤剂分散剂,包括使聚烯烃和P2S5在催化量 硫以形成聚烯烃-P2S5反应产物,使得到的聚烯烃-P2S5反应产物与蒸汽接触,形成含有水解聚烯烃-P2S5反应产物的无机磷酸,从水解的聚烯烃-P2S5反应产物中除去无机磷酸, 无水的聚烯烃-P2S5反应产物与环氧烷反应,其改进包括选自(1)使所述无机酸,水解的聚烯烃-P2S5中间产物与加入的硫接触的步骤,和(2)接触 烷氧基化,无机磷无酸,蒸汽 加入硫酸的聚烯烃-P2S5反应产物。 本发明还涉及所得的硫化烷氧基化产物及其润滑剂组合物。

    Rust-inhibiting oil filter element
    9.
    发明授权
    Rust-inhibiting oil filter element 失效
    防止油过滤器元件

    公开(公告)号:US3618784A

    公开(公告)日:1971-11-09

    申请号:US3618784D

    申请日:1969-01-08

    Applicant: TEXACO INC

    Abstract: An oil filter suitable for use in the lubricating oil system of an internal combustion engine, the oil filter element of which has an adherent oxygenated boron derivative. The oxygenated boron derivative can be boric acid and/or any of its dehydration products, salts or esters. The methods of dispersing the oxygenated boron derivative in the oil filter element include (1) accelerating the oxygenated boron derivative toward the oil filter element by maintaining a pressure differential across the oil filter element; (2) sandwiching the oxygenated boron derivative between two layers of oil filter element material; (3) making a solution of the oxygenated boron derivative in a liquid vehicle, soaking the oil filter material with the solution and volatilizing the liquid vehicle from the oil filter element.

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