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    Lubricating oil composition and process for preparation thereof
    34.
    发明授权
    Lubricating oil composition and process for preparation thereof 失效
    润滑油组合物及其制备方法

    公开(公告)号：US4388202A

    公开(公告)日：1983-06-14

    申请号：US196913

    申请日：1980-07-14

    Applicant: Riichiro Nagano ,  Ryosuke Kaneshige

    Inventor： Riichiro Nagano ,  Ryosuke Kaneshige

    IPC: C08F255/00 ,  C08F257/02 ,  C08F279/02 ,  C10M143/02 ,  C10M145/02 ,  C10M1/28

    CPC classification number: C08F279/02 ,  C08F255/00 ,  C08F257/02 ,  C10M143/02 ,  C10M145/02 ,  C10M2209/04 ,  C10M2209/06 ,  C10M2209/062 ,  C10M2209/08 ,  C10M2209/082 ,  C10M2209/084 ,  C10N2270/02

    Abstract: A lubricating oil composition comprising a major proportion of a lubricating oil, and an oil-soluble graft copolymer, said graft copolymer being prepared by grafting a small amount of a grafting monomer selected from saturated esters of unsaturated monocarboxylic acids, unsaturated esters of saturated carboxylic acids and unsaturated epoxy compounds to a trunk copolymer which is substantially free from an oxygen-containing functional group and a carbon-carbon double bond determined from its iodine value and has a number average molecular weight of about 5,000 to about 100,000, said trunk copolymer being selected from copolymers of alpha-olefins having 2 to 20 carbon atoms, copolymers of styrene and alpha-olefins having 2 to 20 carbon atoms and hydrogenated products of copolymers of styrene and diolefins. A process for preparation of said composition is also provided.

    Abstract translation: PCT No.PCT / JP79 / 00289 Sec。 371日期1980年7月14日第 102（e）日期1980年7月14日PCT提交1979年11月13日PCT公布。 出版物WO80 / 00976 日本1980年5月15日。一种润滑油组合物，其包含主要部分的润滑油和油溶性接枝共聚物，所述接枝共聚物通过接枝少量接枝单体制备，所述接枝单体选自饱和的不饱和一元羧酸酯， 饱和羧酸和不饱和环氧化合物的不饱和酯与基本上不含氧官能团的树脂共聚物和由其碘值确定的碳 - 碳双键并且具有约5,000至约100,000的数均分子量 所述树脂共聚物选自具有2至20个碳原子的α-烯烃的共聚物，苯乙烯与具有2至20个碳原子的α-烯烃的共聚物和苯乙烯和二烯烃共聚物的氢化产物。 还提供了制备所述组合物的方法。

    Lubricating oil compositions
    36.
    发明授权
    Lubricating oil compositions 失效
    润滑油组成

    公开(公告)号：US3947368A

    公开(公告)日：1976-03-30

    申请号：US118989

    申请日：1971-02-25

    Applicant: William M. Sweeney

    Inventor： William M. Sweeney

    IPC: C10M1/28 ,  C10M3/22 ,  C10M5/12 ,  C10M7/26

    CPC classification number: C10M1/08 ,  C10M2203/108 ,  C10M2209/04 ,  C10M2209/06 ,  C10M2209/062

    Abstract: Lubricating oil compositions having substantially reduced pour points are prepared by incorporating an effective pour depressant amount of an oil-soluble copolymer of ethylene and a vinyl ester of a lower saturated monobasic aliphatic carboxylic acid in a paraffinic, waxy-type, residual lubricating oil base stock. The copolymers, in which the lower saturated monobasic carboxylic component of the ester has from 2 to 6 carbon atoms, have molecular weights of about 16,000 to about 31,000 and which contain about 17 to about 42 weight percent of the vinyl ester, can be added to the lubricating base stock in the form of an emulsion, as a hydrocarbon solution or in any other convenient manner.

    Abstract translation: 通过将有效的降压剂量的乙烯和低级饱和一元脂肪族羧酸的乙烯基酯的油溶性共聚物在石蜡，蜡状残余润滑油基础油中加入，制备具有显着降低的倾点的润滑油组合物 。 其中酯的低级饱和一元羧酸成分具有2-6个碳原子的共聚物具有约16,000至约31,000的分子量和含有约17至约42重量％的乙烯基酯的共聚物可以加入到 以乳液形式的润滑基础油料，作为烃溶液或以任何其它方便的方式。

    A clay free aqueous drilling fluid
    40.
    发明授权
    A clay free aqueous drilling fluid 失效
    无粘性钻井液

    公开(公告)号：US3852201A

    公开(公告)日：1974-12-03

    申请号：US34322873

    申请日：1973-03-21

    Applicant: JACKSON J

    Inventor： JACKSON J

    IPC: C09K8/10 ,  C09K8/26 ,  E21B21/06 ,  C10M3/04 ,  C10M1/28 ,  C10M3/02 ,  C10M3/22

    CPC classification number: E21B21/065 ,  C09K8/10 ,  C09K8/26

    Abstract: The basic fluid is water or an oil-water mixture. The primary weighting materials are dissolved salts, e.g., sodium chloride, calcium chloride or mixed brines, and in these the calcium or sodium ions inhibit hydration and swelling of drilled solids. When non-cationic fluids are used, an inhibitor is added to prevent such hydration and disintegration - an electrolyte or a cationic surfactant. Any viscosifier added is one having neither a structured viscosity nor gel strength, hydroxyethyl cellulose for example. When the drilling fluid is pumped to the surface, most of the drilled solids are in their original condition and size, and are readily removed and discarded by screening and other available physical means. There is none of the build-up of solids associated with older systems, and hence no need for discarding, thinning, and make-up.

    Abstract translation: 基本的液体是水或油水混合物。 主要称重材料是溶解的盐，例如氯化钠，氯化钙或混合盐水，在这些中，钙或钠离子抑制钻井固体的水化和溶胀。 当使用非阳离子流体时，加入抑制剂以防止这种水合和崩解 - 电解质或阳离子表面活性剂。 任何增粘剂均不具有结构粘度和凝胶强度，例如羟乙基纤维素。 当钻井液被泵送到表面时，大多数钻探的固体处于其原始状态和尺寸，并且通过筛选和其他可用的物理手段容易地去除和丢弃。 与旧系统相关联的固体没有任何积聚，因此不需要丢弃，变薄和化妆。

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