Electric field responsive fluids
    13.
    发明授权
    Electric field responsive fluids 失效
    电场响应流体

    公开(公告)号:US4483788A

    公开(公告)日:1984-11-20

    申请号:US475218

    申请日:1983-03-14

    Abstract: An electroviscous (EV) fluid composition whose fluid properties are altered in the presence of an electric field comprises water-containing particles of a phenol-formaldehyde polymer dispersed in a non-conducting liquid. The composition, selected from the broad range of fluid compositions of UK Pat. No. 1570234, possesses improved fluid properties combined with markedly reduced electrical conductivity, and is thus more suitable for use in applications such as at the interface between electronics and power hydraulics for example.In a preferred embodiment of the present invention the polymer comprises the dilithium salt of 2,2', 4,4' tetrahydroxybenzophenone condensed with formaldehyde, dispersed at 30% V/V in a mixture of brominated diphenyl methane (BDM) liquid components having the averaged formula C.sub.6 H.sub.4 Br.CH.sub.2.C.sub.6 H.sub.5.

    Abstract translation: 流体性质在电场存在下改变的电粘性(EV)流体组合物包括分散在非导电液体中的苯酚 - 甲醛聚合物的含水颗粒。 该组合物选自英国专利的大量流体组合物。 具有改善的流体特性和显着降低的导电性,因此更适用于例如在电子和动力液压之间的界面处的应用。 在本发明的优选实施方案中,聚合物包含与甲醛缩合的2,2',4,4'四羟基二苯甲酮的二锂盐,以30%V / V在溴化二苯甲烷(BDM)液体组分的混合物中分散,其具有 平均式C6H4Br.CH2.C6H5。

    Silane coated silicate minerals and method for preparing same
    14.
    发明授权
    Silane coated silicate minerals and method for preparing same 失效
    硅烷涂层硅酸盐矿物及其制备方法

    公开(公告)号:US4260498A

    公开(公告)日:1981-04-07

    申请号:US953239

    申请日:1978-10-20

    Abstract: Phyllosilicate minerals which exhibit in their structure, sequentially, octahedral layers containing magnesium, aluminum and/or iron oxides and tetrahedral layers of silica, are superficially etched with dilute acid to remove the outer octahedral layer under controlled conditions which preserve the basic structural integrity of the mineral substrate. The acid etch exposes silanol groups on the outer silicate layer of the mineral so that they become available to form silicon-to-oxygen-to-silicon-to-carbon bonds through condensation with organo-silanes. The condensation of the organo-silane with the conditioned mineral surface is accomplished by mixing the acid etched silicate mineral with the organo-silane in a suitable solvent system under mild conditions.The organo-silane may be chosen from either of two classes: those which impart an oleophilic surface to the mineral; or those which enable the mineral surface to form additional chemical bonds with reactive sites within certain polymers and prepolymers. The mineral products of this invention which have been treated to possess oleophilic surfaces are superior additives for rheology control in lubricants, polyolefins, paints and oil well drilling fluids, as well as heat and moisture resistant reinforcing agents for rubbers; while those mineral products treated to possess surfaces chemically reactive with polymers and prepolymers when incorporated in such systems impart to the finished composites improved mechanical properties and heat and moisture resistance.

    Abstract translation: 在其结构中顺序地显示含有镁,铝和/或氧化铁的四面体层和二氧化硅四面体层的薄硅酸盐矿物用稀酸表面蚀刻以在受控条件下去除外部八面体层,其保持了基本结构完整性 矿物基质。 酸蚀刻在矿物的外硅酸盐层上暴露出硅烷醇基团,使得它们通过与有机硅烷缩合而形成硅与氧 - 硅 - 碳键。 有机硅烷与调理的矿物表面的缩合是通过在温和条件下将酸蚀刻的硅酸盐矿物与有机硅烷在合适的溶剂体系中混合来实现的。 有机硅烷可以选自以下两种之一:赋予矿物亲油性表面的那些; 或使矿物表面与某些聚合物和预聚物中的活性位点形成额外的化学键的那些。 已经被处理以具有亲油表面的本发明的矿物产品是润滑剂,聚烯烃,油漆和油井钻井液中的流变控制的优异添加剂,以及用于橡胶的耐热和防潮的增强剂; 当被纳入这种系统中时,被处理具有与聚合物和预聚物化学反应的表面的那些矿物产品赋予成品复合材料改善的机械性能和耐热和耐湿性。

    Well drilling
    15.
    发明授权
    Well drilling 失效
    井钻

    公开(公告)号:US3639233A

    公开(公告)日:1972-02-01

    申请号:US3639233D

    申请日:1969-03-18

    Applicant: DRESSER IND

    CPC classification number: C09K8/32 Y10S507/91

    Abstract: Method for preventing the settling out of a weighting agent from a drilling fluid when the drilling fluid is substantially water free by using certain hydroxy compounds such as 1,2-ethanediol, and the drilling fluid formed by the method. Also, a method for preventing plugging of wells containing substantial amounts of sulfur.

    Abstract translation: 当钻井液通过使用某些羟基化合物如1,2-乙二醇而基本上无水时,以及通过该方法形成的钻井液,防止来自钻井液的重量剂沉降的方法。 而且,还可以防止含有大量硫的孔堵塞的方法。

    Carboxylic solubilizer/surfactant combinations and aqueous compositions
containing same
    19.
    发明授权
    Carboxylic solubilizer/surfactant combinations and aqueous compositions containing same 失效
    羧酸增溶剂/表面活性剂组合物和含有它们的含水组合物

    公开(公告)号:US4666620A

    公开(公告)日:1987-05-19

    申请号:US839836

    申请日:1986-03-13

    Inventor: John W. Forsberg

    Abstract: Combinations of carboxylic solubilizers, made by reaction of an acylating agent with an N-(hydroxyl-substituted hydrocarbyl) amine and surfactants are useful in incorporating oil-soluble, water-insoluble functional additives into aqueous systems. Typical solubilizers are made by reacting an alkyl-substituted succinic anhydride containing about 12 to about 500 carbon atoms with an alkanol amine such as diethyl ethanol amine. Typical surfactants are nonionic hydrophilic surfactants such as ethyoxylated phenols and ionic surfactants of both the anionic and cationic type. Typical functional additives are anti-wear, extreme pressure and load-carrying agents such as dithiophosphates. The aqueous systems formed with the aid of such combinations are useful, for example, as water-based hydraulic fluids.

    Abstract translation: 通过酰化剂与N-(羟基取代的烃基)胺和表面活性剂的反应制备的羧基增溶剂的组合可用于将油溶性的水不溶性功能添加剂掺入含水体系中。 典型的增溶剂是通过使含有约12至约500个碳原子的烷基取代的琥珀酸酐与烷醇胺如二乙基乙醇胺反应而制得的。 典型的表面活性剂是非离子亲水性表面活性剂,例如乙氧基化酚和阴离子和阳离子类型的离子表面活性剂。 典型的功能添加剂是抗磨损,极压和负载载体如二硫代磷酸盐。 借助于这种组合形成的水性体系可用作例如水基液压流体。

    Process for manufacture of stabilized lubricating oil with elemental
sulfur
    20.
    发明授权
    Process for manufacture of stabilized lubricating oil with elemental sulfur 失效
    用元素硫制造稳定化润滑油的方法

    公开(公告)号:US4021334A

    公开(公告)日:1977-05-03

    申请号:US693828

    申请日:1976-06-08

    Abstract: A stabilized lubricating oil resistant to oxidation and sludge formation upon exposure to an oxidative environment is prepared without forming undesirable color bodies therein by the steps (1) contacting the lubricating oil stock with a small amount of added elemental sulfur of from about 0.05 to about 1.0 percent by weight at a contact temperature of from about 25.degree. C. to about 130.degree. C. and (2) contacting the product of step (1) with hydrogen in the presence of alumina impregnated with at least about 10 weight percent MoO.sub.3 and at least about 2.5 weight percent CoO to remove any unreacted added elemental sulfur therefrom. The impregnated alumina catalyst of step (2) must have at least 50 percent of the pores with a pore diameter of 50 Angstrom Units or more.

    Abstract translation: 在暴露于氧化环境下,抗氧化和污泥形成的稳定的润滑油在不形成不期望的着色体的情况下通过步骤(1)使润滑油原料与少量添加的元素硫接触,其量为约0.05至约1.0 在约25℃至约130℃的接触温度下的重量百分比。和(2)在浸渍有至少约10重量%MoO 3的氧化铝存在下,和(2)使步骤(1)的产物与氢气接触, 至少约2.5重量%的CoO以除去任何未反应的添加的元素硫。 步骤(2)的浸渍氧化铝催化剂必须具有至少50%孔径为50埃或以上的孔。

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