Bis-succinimide derivatives
    41.
    发明授权
    Bis-succinimide derivatives 失效
    BIS-SUCCINIMIDE衍生物

    公开(公告)号:US5145984A

    公开(公告)日:1992-09-08

    申请号:US583451

    申请日:1990-09-17

    Inventor: Stephen J. Cook

    Abstract: A process for producing a lubricating oil dispersant additive comprises:step (1) reacting compound (A), wherein compound (A) is a hydrocarbyl-substituted or a substituted hydrocarbyl-substituted succinic acid or anhydride or ester thereof, with compound (B) of formula (I)H.sub.2 N(CHR.sup.1 CHR.sup.2 O).sub.n CHR.sup.3 CHR.sup.4 NH.sub.2 (I) wherein one R.sup.2 and R.sup.2 is hydrogen and the other is hydrogen or a lower alkyl group and n is an integer from 1 to 10 and one of R.sup.3 and R.sup.4 is hydrogen and the other is hydrogen or a lower alkyl group, each of the --(CHR.sup.1 CH.sup.2 O)--units being independently defined, to give a product (C) andstep(2) reacting product (C) with a diisocyanate (D) of formula (II)OCN--R.sup.5 --NCO (II) wherein R.sup.5 is a divalent organic group. Novel succinimides have been prepared by the disclosed process, lubricating oil compositions comprise 1-20% w/w of the modified succinimdes. The succinimides have dispersancy and VI improver properties.

    Marine diesel cylinder lubricant
    42.
    发明授权
    Marine diesel cylinder lubricant 有权
    船用柴油机油缸润滑剂

    公开(公告)号:US08623799B2

    公开(公告)日:2014-01-07

    申请号:US12996777

    申请日:2009-07-06

    Abstract: A marine diesel cylinder is lubricated using a lubricant having a total base number (TBN) of at least about 25, comprising an oil of lubricating viscosity and a metal-containing detergent component. Forty to 90 percent of the TBN derived from the metal-containing detergent component is provided by calcium detergent; 5 to 40 percent of the TBN by sodium detergent; and 5 to 45 percent by magnesium detergent. At least 50 weight percent of the total detergent substrate is sulfonate and less than 50 weight percent is monomeric or oligomeric substrate comprising one or more units of alkyl-substituted phenol having an alkyl group of 8 to 14 carbon atoms. The lubricant is useful when the marine diesel engine is fueled with a liquid fuel containing at least 2 ppm vanadium.

    Abstract translation: 使用具有至少约25的总碱值(TBN)的润滑剂润滑船用柴油缸,其包含润滑粘度的油和含金属的洗涤剂组分。 来自含金属的洗涤剂成分的四成90%的TBN由钙洗涤剂提供; 5%至40%的TBN由钠洗涤剂; 和5-45%的镁洗涤剂。 总洗涤剂底物的至少50重量%是磺酸盐,小于50重量%是包含一个或多个具有8至14个碳原子的烷基的烷基取代的苯酚单元的单体或低聚底物。 当船用柴油发动机用含有至少2ppm钒的液体燃料燃料时,润滑剂是有用的。

    Four-point planar mechanical mount with high precision
    46.
    发明授权
    Four-point planar mechanical mount with high precision 失效
    四点平面机械安装,精度高

    公开(公告)号:US06796666B1

    公开(公告)日:2004-09-28

    申请号:US08733291

    申请日:1996-10-17

    CPC classification number: G02B7/182

    Abstract: An apparatus for mounting an object precisely in a specific plane. An object is mounted on small support points rather than flat pads or other flat surfaces. The support points are stiff but not completely rigid. Exactly four support points are used. Mechanical forces are sufficient to slightly compress the two higher support points on a diagonal and to slightly compress the object so that the object presses against all the support points, with a higher amount of compression for one pair of diagonal points relative to the other two points. In an example embodiment, the support points are formed at the intersection of curved surfaces or at the intersection of multiple planar surfaces. In a specific example embodiment, the points are formed at the intersection of cylindrical surfaces. The points are fabricated by a cylindrical cutting bit that has partial-cylinder grooves formed circumferentially in the bit. The outer surface of the bit is used to mill two intersecting planes, and the grooves result in cylindrical surfaces intersecting at the same angle as the intersecting planes. The resulting support points are true singular points, but with limited compressibility because of the shallow angle of the material just below the points.

    Abstract translation: 一种用于将物体精确地安装在特定平面中的装置。 物体安装在小支撑点上,而不是平垫或其他平坦表面。 支撑点僵硬但不完全刚性。 使用四个支持点。 机械力足以稍微压缩对角线上的两个较高的支撑点并稍微压缩物体,使得物体压靠所有支撑点,相对于另外两个点,一对对角线点的压缩量较大 。 在一个示例性实施例中,支撑点形成在弯曲表面的交点处或多个平面表面的相交处。 在具体示例性实施例中,这些点形成在圆柱形表面的相交处。 这些点由具有在钻头中周向形成的部分气缸槽的圆柱形切削钻头制成。 钻头的外表面用于磨制两个相交平面,并且凹槽产生与相交平面以相同角度相交的圆柱表面。 得到的支持点是真正的奇点,但是由于材料的角度较浅,正好在点之下,压缩性受限。

    Highly overbased lubricating oil additive concentrates their preparation
and use
    47.
    发明授权
    Highly overbased lubricating oil additive concentrates their preparation and use 失效
    高度高碱性润滑油添加剂浓缩其制备和使用

    公开(公告)号:US6028039A

    公开(公告)日:2000-02-22

    申请号:US895692

    申请日:1997-07-17

    CPC classification number: C07G17/008 C10M159/22

    Abstract: An additive concentrate having a TBN greater than 300 suitable for incorporation into a finished lubricating oil composition comprising:(I) a lubricating oil soluble sulphurised or non-sulphurised alkaline earth metal hydrocarbyl phenate derived either from a hydrocarbyl phenate or its precursors and modified by reaction to incorporate:(i) an aldehyde, and(ii) from greater than 2 to less than 40% by weight based on the weight of the concentrate of either (a) at least one carboxylic acid having the formula: ##STR1## wherein R is a C.sub.10 to C.sub.24 alkyl or alkenyl group and R.sup.1 is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a --CH.sub.2 --COOH group, or an anhydride or ester thereof, or (b) a di- or polycarboxylic acid containing from 36 to 100 carbon atoms or an anhydride or ester thereof, and (II) a lubricating oil,wherein the amount of lubricating oil (II) in the additive concentrate is such that the ratio of the weight of the additive concentrate to the weight of the hydrocarbyl phenate or its precursors from which the modified sulphurised or non-sulphurised phenate is derived is at least 3.0.

    Abstract translation: TBN大于300的添加剂浓缩物适于掺入成品润滑油组合物中,其包含:(I)衍生自烃基酚盐或其前体并通过反应改性的润滑油可溶性硫化或非硫化碱土金属烃基酚盐 以(i)醛,和(ii)大于2至小于40重量%,基于浓缩物的重量(a)至少一种具有下式的羧酸:其中R是C10 C 24烷基或烯基,R 1为氢,C 1〜C 4烷基或-CH 2 -COOH基,或其酸酐或酯,或(b)含有36〜100个碳原子的二元或多元羧酸 或其酸酐或酯,和(II)润滑油,其中添加剂浓缩物中的润滑油(II)的量使得添加剂浓缩物的重量与酚基酚盐或其前体的重量之比 经修饰的硫化或非硫化酚盐衍生自其中的至少3.0。

    Alkaline earth metal hydrocarbyl salicylate concentrates, their
preparation and use
    49.
    发明授权
    Alkaline earth metal hydrocarbyl salicylate concentrates, their preparation and use 失效
    碱土金属盐酸水杨酸盐浓缩液,其制备和使用

    公开(公告)号:US5458790A

    公开(公告)日:1995-10-17

    申请号:US355171

    申请日:1994-12-08

    CPC classification number: C10M159/22

    Abstract: An additive concentrate having a TBN greater than 300 suitable for incorporation into a finished lubricating oil comprises: (I) a lubricating oil soluble overbased alkaline earth metal hydrocarbyl salicylate modified by reaction to incorporate (a) an aldehyde, and (b) from 2 to 40% by weight, based on the weight of the concentrate, of either (i) at least one carboxylic acid having the formula: ##STR1## wherein R.sup.3 is a C.sub.10 to C.sub.24 alkyl or alkenyl group and R.sup.4 is either hydrogen, a C.sub.1 to C.sub.4 alkyl group or a CH.sub.2 COOH group, or an anhydride or ester thereof, or (ii) a di- or poly-carboxylic acid containing from 36 to 100 carbon atoms or an acid anhydride, acid chloride or ester thereof, and (II) a lubricating oil.

    Abstract translation: 具有TBN大于300的添加剂浓缩物适于掺入成品润滑油中包括:(I)通过反应改性的润滑油溶性高碱性碱土金属水杨酸烃基酯,其通过反应引入(a)醛,和(b)从2至 基于浓缩物的重量,40重量%的(i)至少一种具有下式的羧酸:其中R 3是C 10至C 24烷基或烯基,R 4是氢, C 1〜C 4烷基或CH 2 COOH基,或其酸酐或酯,或(ii)含有36〜100个碳原子的二羧酸或多元羧酸或酸酐,酰氯或其酯,和 II)润滑油。

    Enhanced grounding system for short-wire lengthed fixture
    50.
    发明授权
    Enhanced grounding system for short-wire lengthed fixture 失效
    用于短线拉长夹具的增强接地系统

    公开(公告)号:US5304921A

    公开(公告)日:1994-04-19

    申请号:US741719

    申请日:1991-08-07

    CPC classification number: G01R1/07342

    Abstract: Grounding technology is provided for a short-wire, circuit board test fixture. As a result of the grounding technology, the ground between a circuit board test system and a circuit board under test can be reliably controlled. The grounding technology provides testing at extremely higher speeds by minimizing ground bounce. An internal ground plane is situated in the test fixture. Pursuant to one embodiment of the invention, a coax assembly at ground potential surrounds critical signal paths between the internal ground plane and an alignment plate situated at the bottom of the test fixture. Either a conductive alignment plate or a conductive ground comb affixed to a non-conductive alignment plate is implemented to permit conduction of the ground signal between the board test system and the coax assembly. In another embodiment, an array of ground personality pins provides conduction of the ground signal between the internal ground plane and the board test system. The ground personality pins are clustered around critical signal paths to control impedance.

    Abstract translation: 接地技术是为短线,电路板测试夹具提供的。 作为接地技术的结果,可以可靠地控制电路板测试系统和被测电路板之间的接地。 接地技术通过最小化地面反弹来以极高的速度提供测试。 内部接地平面位于测试夹具中。 根据本发明的一个实施例,地电位的同轴电缆组件包围内部接地平面与位于测试夹具底部的对准板之间的关键信号路径。 固定到非导电对准板上的导电对准板或导电接地梳被实现以允许在板测试系统和同轴电缆组件之间传导接地信号。 在另一个实施例中,地面个性销的阵列提供了在内部接地平面和板测试系统之间的接地信号的导通。 地面人格引脚聚集在关键信号路径周围以控制阻抗。

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