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16 条记录 (耗时 0.027 秒)

    Solid viscosity index improvers which provide excellant low temperature viscosity
    14.
    发明授权
    Solid viscosity index improvers which provide excellant low temperature viscosity 失效
    固体粘度指数改进提供低温粘度

    公开(公告)号：US5223579A

    公开(公告)日：1993-06-29

    申请号：US646024

    申请日：1991-01-28

    申请人： Robert B. Rhodes ,  Harvey E. Atwood

    发明人： Robert B. Rhodes ,  Harvey E. Atwood

    IPC分类号： C10M143/10 ,  C08F8/04 ,  C08F297/04 ,  C10M143/12 ,  C10N20/04 ,  C10N30/02 ,  C10N60/02 ,  C10N70/00

    CPC分类号： C10M143/12 ,  C08F297/046 ,  C08F8/04 ,  C10M2205/06

    摘要： A solid, cyclone-finishable polymer which does not exhibit cold flow and provides an unexpected balance of viscosity improving properties for oil compositions is produced by hydrogenating a copolymer comprising a homopolymer block of isoprene connected to a copolymer block of isoprene and a monoalkenyl aromatic hydrocarbon. The amount of the monoalkenyl aromatic hydrocarbon is sufficient to allow cyclone finishing although sufficiently distributed to provide oil compositions having good low temperature viscosity. Prior to hydrogenation, the copolymers have a number average molecular weight between 125,000 and 275,000, preferably 150,000 to 240,000, and a total monoalkenyl aromatic content between 10 and 2 percent by weight, preferably between 7 and 3 percent. The copolymer is hydrogenated to substantially saturate the isoprene and to reduce the size of monoalkenyl aromatic segments in the copolymer block.

    Lubricating oil composition with supplemental rust inhibitor
    16.
    发明授权
    Lubricating oil composition with supplemental rust inhibitor 失效
    润滑油组成与补充防锈剂

    公开(公告)号：US4493776A

    公开(公告)日：1985-01-15

    申请号：US429959

    申请日：1982-09-30

    申请人： Robert B. Rhodes

    发明人： Robert B. Rhodes

    IPC分类号： C10M167/00 ,  C10M1/28 ,  C10M1/54

    CPC分类号： C10M167/00 ,  C10M2205/06 ,  C10M2207/028 ,  C10M2207/262 ,  C10M2207/34 ,  C10M2209/104 ,  C10M2209/105 ,  C10M2209/107 ,  C10M2209/108 ,  C10M2215/04 ,  C10M2215/086 ,  C10M2215/26 ,  C10M2215/28 ,  C10M2217/046 ,  C10M2217/06 ,  C10M2219/046 ,  C10M2219/089 ,  C10N2230/12 ,  C10N2240/10 ,  C10N2240/101 ,  C10N2240/104 ,  C10N2240/106

    摘要： A lubricating oil composition for internal combustion engines having superior rust and corrosion inhibition is disclosed. The composition comprises a major amount of a hydrocarbon oil of lubricating viscosity and a minor amount of conventional additives, including an overbased detergent (such as calcium carbonate or calcium hydroxide) for rust protection and an ashless dispersant (such as the reaction product of substituted succinic acid or anhydrides with amines). The composition also includes a supplemental rust inhibitor (SRI) additive which is a combination of an effective amount of a supplemental rust inhibitor (SRI) additive comprising a combination of (A) R.sub.1 O[C.sub.2 H.sub.4 O].sub.x H and/or R.sub.2 O[C.sub.3 H.sub.6 O].sub.y H with (B) R.sub.3 O[C.sub.2 H.sub.4 O].sub.x [C.sub.3 H.sub.6 O].sub.y H and/or R.sub.4 O[C.sub.3 H.sub.6 O].sub.y [C.sub.2 H.sub.4 O].sub.x H, wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are hydrocarbyl radicals selected from alkyl, aryl, alkaryl, and arylalkyl groups or combinations thereof having from about 10 to about 24 carbon atoms; and wherein x and y may vary independently in the range from 3 to about 15.

    摘要翻译： 公开了一种具有优异的防锈和腐蚀抑制性的内燃机润滑油组合物。 该组合物包含主要量的具有润滑粘度的烃油和少量常规添加剂，包括用于防锈的高碱性洗涤剂（例如碳酸钙或氢氧化钙）和无灰分散剂（例如取代的琥珀酸的反应产物 酸或酸酐与胺）。 该组合物还包括补充防锈剂（SRI）添加剂，其是有效量的补充防锈剂（SRI）添加剂的组合，其包含（A）R 1 O [C 2 H 4 O] x H和/或R 2 O [C 3 H 6 O] y H的组合与 （B）R3O [C2H4O] x [C3H6O] yH和/或R4O [C3H6O] y [C2H4O] xH，其中R1，R2，R3和R4是选自烷基，芳基，烷芳基和芳烷基的烃基或其组合 具有约10至约24个碳原子; 并且其中x和y可以独立地在3至约15的范围内变化。