Abstract: A grease composition, which comprises a base oil selected from at least one of synthetic hydrocarbon oil, ester-based synthetic oil, and ether-based synthetic oil; a thickening agent selected from at least one of lithium-based soap, lithium-based complex soap, and a urea-based compound; polytetrafluoroethylene resin powders having a number average molecular weight Mn of 20,000-100,000; and zinc dialkyldithiophosphate having straight or branched alkyl groups of at least 3 carbon atoms, preferably 5-13 carbon atoms, and more preferably 8-12 carbon atoms, has not only a distinguished lubricability, when applied to plastic members, but also a distinguished durability as given by change in friction coefficient and wear loss, after the sliding test.
Abstract: An image forming apparatus includes an image bearer that carries a toner image, and a lubricant supplying device that supplies lubricant to the surface of the image bearer. A lubricant supplying device is provided in the image forming apparatus and includes a lubricant block and a brush roller. The brush roller shaves and supplies the lubricant from the lubricant block to the image bearer via the brush roller. The lubricant is made by molding under pressure.
Abstract: [Task] The solid-lubricant layer applied on the surface of Al or Cu-based bearing alloy is improved so as to satisfactorily demonstrate the properties of the solid lubricant. [Means for Solution] The solid lubricant dispersed in the solid-lubricant solid-lubricant layer exhibits 85% or more of the relative C axis intensity ratio defined below. The relative C axis intensity ratio=the accumulative intensity of (002), (004) and (008) planes relative to the accumulative intensity of (002), (004), (100), (101), (102), (103), (105), (110) and (008) planes detected by X ray diffraction.
Abstract: A soft magnetic material includes a plurality of composite magnetic particles including a metal magnetic particle and an insulating film surrounding a surface of the metal magnetic particle. The insulating film also contains a phosphate. The soft magnetic material further includes an aromatic polyetherketone resin and a metallic soap and/or an inorganic lubricant having a hexagonal crystal structure. The metallic soap and the inorganic lubricant are particles with an average particle size of not more than 2.0 ?m.
Type:
Grant
Filed:
May 15, 2007
Date of Patent:
August 14, 2012
Assignees:
Sumitomo Electric Industries, Ltd., Denso Corporation, Sumitomo Electric Sintered Alloy, Ltd.
Abstract: The present invention provides a binder resin for a friction material, which enables high-temperature short-time thermoforming and can omit a post-curing step and suppress the generation of a pyrolysis component at molding; a friction material using the binder resin; and a binder resin composition for a friction material, which is enhanced in the heat resistance and can suppress a rapid increase of the wear amount, and in addition to these properties, which has good dynamic property and enables high-temperature short-time thermoforming.
Abstract: A lubricant composition that is particularly suited for use in steam and gas turbine oils and in circulating oils has a balance of excellent oxidative stability and reduced sludge formation and comprises a blended mixture of alkylated phenyl-?-naphthylamine and at least oil soluble triazole or triazole derivative in an oil of lubricating viscosity, such compositions being capable of a residual RPVOT of 25% after at least 500 hours test duration test duration 120° C. in Dry TOST test or, alternatively 50% after 700 hours or 25% after 1000 hours.
Type:
Grant
Filed:
October 17, 2008
Date of Patent:
July 24, 2012
Assignee:
Afton Chemical Corporation
Inventors:
Helen T. Ryan, Ricky Shyam Prasad, John M. Taylor
Abstract: This disclosure relates to substantially atactic polymers of at least one of propylene, 1-butene or 1-pentene, processes for making such polymers and compositions including the polymers. The polymers may be used as lubricants or may be combined with low viscosity base stocks to form lubricants. The polymers may be made in the presence of a metallocene catalyst with a non-coordinating anion activator and optionally with hydrogen.
Type:
Grant
Filed:
May 13, 2008
Date of Patent:
July 24, 2012
Assignee:
Exxonmobil Research and Engineering Company
Inventors:
Margaret M. Wu, Ernestine W. Hill, Liehpao Oscar Farng, Andrew Jackson
Abstract: There is a coated, dynamic contact surface. The contact has a substrate and a carbon-based coating on the substrate. The coating has a coefficient of friction of about 0.5 or less and an atomic hydrogen content of about 5% to about 25%. There is also a mechanical system. There is a method for increasing oil-out survivability in a mechanical system.
Abstract: The present invention provides a grease composition for use in a constant velocity joint, which is excellent in the resistance to flaking. The grease composition comprises the following components (a) to (d): (a) a base oil; (b) a thickener; (c) an organic molybdenum compound; and (d) at least one compound selected from the group consisting of oxides of divalent typical metals having a Mohs hardness lower than that of the steel and compounds of the foregoing divalent typical metals, which can immediately be converted into the corresponding oxides of these metals having a Mohs hardness lower than that of the steel under the boundary lubrication conditions. In particular, the present invention relates to a grease composition for use in a constant velocity joint, wherein the component (d) is zinc oxide or zinc carbonate and wherein the component (c) is molybdenum dithiocarbamate.
Abstract: The present invention is a process and apparatus for forming various bio-products from cellulosic plant material. The plant material is subjected to a pulping step in which lignin is extracted from the material by an aqueous lignin solvent to form a lignin-solvent mixture and purified cellulose. The lignin-solvent mixture can be separated from the water to form a high energy density fuel that can be used independently or combined with biodiesel. The purified cellulose can be used in conventional processes, e.g., paper making, or can be converted to fermentable sugars with a cellulase enzyme to produce other bio-products depending on the operating conditions of the fermenter. The bio-products produced by the fermenter can include the solvent that may be recycled for use in extracting the lignin.
Abstract: Processes are described for producing liquid, biobased lubricant additives containing from 50 to 100% biobased carbon according to ASTM D6866 from heat-bodied oils by transesterification with biobased or petroleum based alcohols and by hydrotreatment of at least the resulting diesters, triesters and polyesters.
Abstract: Processes are described for producing liquid, biobased lubricant additives containing from 50 to 100% biobased carbon according to ASTM D6866 from heat-bodied oils by transesterification with biobased or petroleum based alcohols and by hydrotreatment of at least the resulting diesters, triesters and polyesters.
Abstract: A substantially anhydrous, thickened, spreadable, warming lubricant composition comprising a mixture of glycerin, polyhydric alcohol, a non-ionic surfactant, and a Carbomer thickener, the surfactant improving wetting and spreadability of the composition on skin and latex, and the thickener providing a creamy rich feel to the composition, such that the composition can be applied to skin or a condom and provide an optimal warming effect upon contact with ambient moisture during use and such that the composition can be added to a condom package and, over the course of a week, spread and coat nearly the entire internal and external surfaces of the condom.
Type:
Grant
Filed:
March 3, 2010
Date of Patent:
June 5, 2012
Assignee:
Ansell Healthcare Products LLC
Inventors:
Beng Sim Chuah, David M. Lucas, Tsui Shih Yeun, Dave Narasimhan
Abstract: The present invention is generally directed to triester-based lubricant compositions. The present invention is also directed to methods of making these and other similar lubricant compositions. In some embodiments, the methods for making such triester-based lubricants utilize a biomass precursor comprising mono-unsaturated fatty acids, wherein such mono-unsaturated fatty acids are reduced to mono-unsaturated fatty alcohols en route to the synthesis of triester species for use as/in the triester-based lubricant compositions. Subsequent steps in such synthesis may employ carboxylic acids and/or acyl halides/anhydrides derived from biomass and/or Fischer-Tropsch synthesis.
Type:
Grant
Filed:
June 8, 2009
Date of Patent:
May 29, 2012
Assignee:
Chevron U.S.A. Inc
Inventors:
Saleh A. Elomari, Stephen Joseph Miller, Zhen Zhou
Abstract: A grease composition containing a lubricant base oil, diurea compounds represented by the following general formulas (1) to (3), and at least one species selected from the group consisting of paraffin oxides and phosphorus compounds; wherein respective contents of the diurea compounds represented by the following general formulas (1) to (3) satisfy conditions defined by the following expressions (4) and (5); and wherein the total content of the paraffin oxides and phosphorus compounds is 0.1 to 15 mass % based on the total amount of the grease composition: where R1 is a hydrocarbon group containing an aromatic ring, R2 is a divalent hydrocarbon group, and R3 is a hydrocarbon group containing an aliphatic ring; 5?W1+W2+W3?30??(4) 0.3?(W1+0.5×W2)/(W1+W2+W3)?0.7??(5) where W1, W2, and W3 are respective contents (mass %) of the diurea compounds represented by general formulas (1) to (3) based on the total amount of the grease composition.
Abstract: A sugar based fuel and fuel additive method and solution suitable for use with liquid as well as solid carbon based fuels to improve combustion burning or as a fuel or electrolyte for a fuel cell or battery to produce electricity.
Type:
Grant
Filed:
March 16, 2009
Date of Patent:
May 15, 2012
Assignee:
Environmental Bio-Fuels, Inc.
Inventors:
George T. Bezis, Larry P. Wardle, Marcus G. Theodore
Abstract: The present invention relates to compositions and methods for improving the melt processing of polymeric materials, and more particularly to the use of compatibilized polymer processing additives to enhance the melt processing of polymeric matrices.
Abstract: A method for lubricating a metal workpiece during a metalworking process includes delivering supercritical carbon dioxide to the workpiece during the metalworking process. The supercritical carbon dioxide acts as a lubricant, coolant, chip evacuator, and/or carrier for another lubricant or corrosion inhibitor.
Type:
Grant
Filed:
August 1, 2008
Date of Patent:
May 1, 2012
Assignee:
The Regents of The University of Michigan
Inventors:
Steven J. Skerlos, Kim F. Hayes, Andres F. Clarens
Abstract: (EN) The invention relates to a polymer comprising 50-100% by weight, with regard to the weight of the polymers, of repeating units, which are derived from one or more ethylenically unsaturated ester compounds of formula (I), in which R represents hydrogen or methyl; R1 represents a linear or unbranched alkyl radical with 7 to 30 carbon atoms, and; R2 and R3 independently represent hydrogen or a group of formula —COOR?, wherein R? represents hydrogen or an alkyl group with 7 to 30 carbon atoms. The polymer is a star polymer with 3 to 21 arms and at least 3 of the arms consist of at least 40% by weight, with regard to the weight of the arms, of repeating units, which are derived from one or more ethylenically unsaturated ester compounds of formula (I), in which R1 represents a linear or unbranched alkyl radical with 7 to 30 carbon atoms, and; R2 and R3 independently represent hydrogen or a group of formula —COOR?, wherein R? represents hydrogen or an alkyl group with 7 to 30 carbon atoms.
Type:
Grant
Filed:
August 4, 2006
Date of Patent:
April 24, 2012
Assignee:
Evonik Rohmax Additives GmbH
Inventors:
Torsten Stoehr, Michael Mueller, Boris Eisenberg, Harald Becker, Axel Mueller
Abstract: A lubricating oil composition is disclosed which comprises (a) a major amount of an oil of lubricating viscosity, and (b) an oil-soluble tetra-functional hydrolyzable silane compound of the general formula Si—X4 or a hydrolysis product thereof, wherein each X is independently a hydroxyl-containing group, hydrocarbyloxy-containing group, acyloxy-containing group, amino-containing group, monoalkyl amino-containing group or a dialkyl amino-containing group, and further wherein the lubricating oil composition is free of any zinc dialkyl dithiophosphate.