Nitrogen Attached Directly Or Indirectly To The Silicon By Nonionic Bonding Patents (Class 508/204)
  • Patent number: 11441477
    Abstract: Disclosed is a lubricating engine oil composition for use in down-sized boosted engines comprising a lubricating oil base stock as a major component, and at least one silane-containing compound. Also disclosed is a method for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine, and the use of at least one silane-containing compound in a lubricating engine oil composition for preventing or reducing low speed pre-ignition in a direct injected, boosted, spark ignited internal combustion engine.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: September 13, 2022
    Assignees: CHEVRON ORONITE COMPANY LLC, CHEVRON U.S.A. INC.
    Inventors: John Robert Miller, Richard Eugene Cherpeck, Ian G. Elliott, Theresa Liang Gunawan, Amir Gamal Maria
  • Patent number: 11326327
    Abstract: Disclosed herein are water harvesting networks. The harvesters allow extraction and collection of moisture from the atmosphere without requiring electrical energy inputs.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: May 10, 2022
    Assignee: Board of Regents, The University of Texas System
    Inventors: Guihua Yu, Fei Zhao, Xingyi Zhou
  • Patent number: 10294052
    Abstract: A sheet feed roller (1) is provided, which is formed of an elastomer composition containing a thermoplastic elastomer, a spherical filler and a low friction silicone compound, and has a friction coefficient of not greater than 0.5. A production method is also provided, which includes the step of extruding the elastomer composition through a die configured as corresponding to a sectional shape of the sheet feed roller.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: May 21, 2019
    Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Masashi Hamakubo, Yudai Okuno
  • Patent number: 10157814
    Abstract: A compliant heat sink for transporting heat away from at least one electronic component, the heat sink includes a body, where the body includes a flexible element thermally contacting at least one electronic component. The heat sink further includes a cavity located in the body, where the cavity is at least partially covered by the flexible element. The heat sink further includes a raised member of the body coupled to the flexible element, where a portion of the raised member partially extends into the cavity. The heat sink further includes a guiding structure of the body coupled in the cavity of the body, wherein the guiding structure is adapted for guiding the movement of the raised member in a moving direction.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: December 18, 2018
    Assignee: International Business Machines Corporation
    Inventors: Gerhard I. Meijer, Gerd Schlottig
  • Publication number: 20150057201
    Abstract: [Object] To provide lubricating thermoplastic resin compositions that can give formed articles exhibiting excellent lubricating properties and surface appearance and maintaining the lubricating properties permanently. [Solution] The lubricating thermoplastic resin composition includes an acid-modified copolymer (A) of a monomer mixture including an aromatic vinyl and a vinyl cyanide, the copolymer having a carboxyl group in the molecular chain, and a functionalized lubricant (B) having, in the molecule, a functional group (B1) capable of reacting with the carboxyl group and a lubricating segment (B2) having lubricating properties. The composition may further include a graft copolymer (C) and/or an additional thermoplastic resin (D) other than the acid-modified copolymer (A).
    Type: Application
    Filed: April 5, 2013
    Publication date: February 26, 2015
    Applicant: UMG ABS, LTD.
    Inventors: Yoshitaka Naitoh, Kousaku Tao, Tomonori Takase, Risa Nii, Yoshiaki Shinohara, Keiichi Yagi, Nobutaka Hase
  • Patent number: 8933001
    Abstract: Disclosed is a method for improving compatibility of a fluorocarbon elastomer seal with a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more fluorocarbon elastomer compatibility improving agents 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 dialkyl amino-containing group.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: January 13, 2015
    Assignee: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
  • Publication number: 20140323371
    Abstract: A working fluid whose base material is a glycol, characterized in that such working fluid contains a modified silicone oil.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 30, 2014
    Applicant: CCI CORPORATION
    Inventors: Nobuyuki KAGA, Junichiro KIMURA
  • Publication number: 20140204150
    Abstract: A functional amine release agent displaying reduced coefficient of friction as compared to standard silicone oils, the release agent comprising a polydimethylsiloxane oil and a functional amine selected from the group consisting of pendant propylamines and pendant N-(2-aminoethyl)-3-aminopropyl; wherein the concentration of functional amine to polydimethylsiloxane oil is approximately less than 0.0006 meq/g. According to certain embodiments, the functional amine release agent is operable to impart a coefficient of friction of about 0.3 or more to the print media, resulting in improved finishing and converting equipment interaction.
    Type: Application
    Filed: January 18, 2013
    Publication date: July 24, 2014
    Applicant: XEROX CORPORATION
    Inventors: Jason M. LeFevre, Paul J. McConville, Santokh S. Badesha, James M. Chappell, David A. VanKouwenberg, Anthony S. Condello, Daniel J. McVeigh
  • Publication number: 20140073542
    Abstract: A lubricant composition comprising a major amount of a base oil having a kinematic viscosity between 2 and 8 cSt at 100° C. and a minor amount of an additive composition represented by formula IV: wherein x and y can be the same or different and (x+y) equals between 50 and 1,500 and m and n can be the same or different and Q is hydrogen or a monovalent organic group selected from the group consisting of C1-C8 alkyl, acetyl and isocyanato group of the formula —NCO.
    Type: Application
    Filed: August 23, 2013
    Publication date: March 13, 2014
    Applicant: AFTON CHEMICAL CORPOROATION
    Inventors: Diane GAUTHIER, Joseph B. CARROLL
  • Publication number: 20130121948
    Abstract: There is provided herein a composition comprising the non-covalent bonded reaction product of a hydrophilic polymer containing an acid functional group and a hydrophobic polymer which contains an amine group bound directly to the hydrophobic polymer backbone; and, optionally a diluent, as well as a process of making such a composition.
    Type: Application
    Filed: November 16, 2011
    Publication date: May 16, 2013
    Applicant: Momentive Performance Materials Inc.
    Inventors: Anne Dussaud, Ning Lu
  • Patent number: 8153566
    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.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: April 10, 2012
    Assignee: Cherron Oronite Company LLC
    Inventors: Elaine S. Yamaguchi, Kam-Sik Ng
  • Publication number: 20110239971
    Abstract: Disclosed is a method for improving copper corrosion performance of a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more copper corrosion performance improving agents 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 dialkyl amino-containing group.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
  • Publication number: 20110245118
    Abstract: Disclosed is a method for improving compatibility of a fluorocarbon elastomer seal with a lubricating oil composition containing (a) a major amount of a base oil of lubricating viscosity; and (b) one or more dispersants containing one or more basic nitrogen atoms. The method involves adding to the lubricating oil composition an effective amount of one or more fluorocarbon elastomer compatibility improving agents 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 dialkyl amino-containing group.
    Type: Application
    Filed: March 31, 2010
    Publication date: October 6, 2011
    Applicant: Chevron Oronite Company LLC
    Inventors: Kenneth D. Nelson, Elaine S. Yamaguchi, Kam-Sik Ng, Paula S. Rogers
  • Publication number: 20110177987
    Abstract: The invention is directed to a method for reducing friction between at least two bodies. The method of the invention comprises providing a surface of at least one of said at least two solid bodies with a covalently bound coating, wherein said surface is to be contacted with another one of said at least two solid bodies, and wherein said coating comprising at least one polymer; and providing a liquid onto said coating.
    Type: Application
    Filed: August 27, 2008
    Publication date: July 21, 2011
    Applicant: NEDERLANDSE ORGANISATIE VOOR TOEGEPAST- NATUURWETENSCHAPPELIJK ONDERZOEK TNO
    Inventors: Hermanus Bernardus Maria Lenting, Kjeld Jacobus Cornelis Van Bommel, Emile Van Der Heide, Aafke Tessa Ten Cate
  • Publication number: 20100105582
    Abstract: A composition includes (i) a matrix, (ii) a filler, and (iii) a filler treating agent; where the filler treating agent comprises a polyorganosiloxane capable of hydrogen bonding. The filler treating agent can be a saccharide-siloxane polymer, an amino-functional polyorganosiloxane, or a combination thereof.
    Type: Application
    Filed: January 22, 2008
    Publication date: April 29, 2010
    Inventors: Eric Jude Joffre, Don Kleyer
  • Patent number: 7439211
    Abstract: The invention concerns a method for preparing a lubricating composition, characterised in that it comprises mixing two previously prepared oil-in-water emulsions (A) and (B): the prior emulsion (A) comprises: (a) at least a non-reactive linear polyorganosiloxane oil comprising per molecule at least 2% in number of organic substituents bound to the silicon atoms which are aryl, alkylarylene and/or arylenealkyl radicals; (b) at least a polyorganosiloxane resin bearing hydroxyl groups and comprising at least two different siloxyl units selected among those formula (R1)3SiO1/2(M), (R1)2SiO2/2(D), R1SiO3/2(T) and SiO4/2(Q), one at least of said units being a unit T or Q, R1 representing an organic substituent; (c) at least a crosslinking agent soluble in the silicone phase comprising at least two functions capable of reacting with the polyorganosiloxane resin(s) (b); (d) a condensation catalyst capable of catalysing the reaction of the constituent (b) with the constituent (c); (e) a surfactant; and (f) water; the
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: October 21, 2008
    Assignee: Rhodia Chimie
    Inventors: Gérald Guichard, Ian Hawkins
  • Publication number: 20080194440
    Abstract: This invention relates to lubricating oil additives, and to lubricating oil compositions, their method of preparation, and use. More specifically, this invention relates to several novel lubricating oil additives and compositions which contain a tungsten compound and an antioxidant, namely aminic antioxidants such as a secondary diarylamine or an alkylated phenothiazine. The use of the tungsten compound with the secondary diarylamine and/or the alkylated phenothiazine provides improved oxidation and deposit control to lubricating oil compositions. The lubricating oil compositions of this invention are particularly useful as crankcase and transmission lubricants, gear oils and other high performance lubricant applications.
    Type: Application
    Filed: April 3, 2008
    Publication date: August 14, 2008
    Inventors: Ramanathan Ravichandran, Farouk Abi-Karam, Alena Yermolenka, Michel Hourani, Ingo Roehrs
  • Publication number: 20080167269
    Abstract: The present invention provides for a composition comprising a silane having the formula: (R1)(R2)(R3)Si—R4—Si(R5)(R6)(R7) wherein R1, R2, R3, R5, and R6 are each independently selected from the group consisting of 1 to 6 monovalent hydrocarbon radicals, aryl, and a hydrocarbon group of 7 to 10 carbons containing an aryl group; R4 is a hydrocarbon group of 1 to 3 carbons; R7 comprises an anionic, cationic or zwitterionic substituent. The silanes of the present invention exhibit resistance to hydrolysis over a wide pH range.
    Type: Application
    Filed: December 10, 2007
    Publication date: July 10, 2008
    Applicant: Momentive Performance Materials Inc.
    Inventors: Mark D. Leatherman, George A. Policello, Wenqing N. Peng, Liping Zheng, Roland Wagner, Suresh K. Rajaraman, Zijun Xia
  • Publication number: 20080058232
    Abstract: Disclosed are lubricating oil compositions comprising a major amount of an oil of lubricating viscosity and a tetra-functional hydrolyzable silane compound of the general formula Si—X4 or hydrolysis product thereof, wherein X is independently selected from the group consisting of hydroxyl, alkoxy, aryloxy, acyloxy, amino, monoalkyl amino and dialkyl amino.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Inventors: Elaine S. Yamaguchi, Kam-Sik Ng
  • Publication number: 20080058231
    Abstract: Disclosed is a method for forming an antiwear film on an internal engine component comprising: contacting a surface of an internal wearing component of the engine with a tetra-functional hydrolyzable silane compound of the general formula Si—X4 or hydrolysis product thereof, wherein X is independently selected from the group consisting of hydroxyl, alkoxy, aryloxy, acyloxy, amino, monoalkyl amino and dialkyl amino; and hydrolyzing and condensing the tetra-functional silane to thereby form a film. Also disclosed are mixed silane films and the products produced by these methods.
    Type: Application
    Filed: August 31, 2006
    Publication date: March 6, 2008
    Inventors: Elaine S. Yamaguchi, Kam-Sik Ng
  • Patent number: 7157611
    Abstract: A method for marking a liquid petroleum hydrocarbon. The method comprises adding to the liquid petroleum hydrocarbon a pyrazinoporphyrazine dye having an absorption maximum from 700 nm to 900 nm.
    Type: Grant
    Filed: June 19, 2003
    Date of Patent: January 2, 2007
    Assignee: Rohm and Haas Company
    Inventors: Rajiv Manohar Banavali, Kim Sang Ho
  • Patent number: 6887835
    Abstract: Lubricants, especially lubricating oils, and fuels, especially hydrocarbon fuels, contain a class of anti-wear, anti-fatigue, and extreme pressure additives that are derived from silanes. The additives can be used as either partial or complete replacements for zinc dialkyldithiophosphates currently used in lubricants and fuels.
    Type: Grant
    Filed: March 31, 2003
    Date of Patent: May 3, 2005
    Assignee: Crompton Corporation
    Inventors: Cyril A. Migdal, Robert G. Rowland, David J. Sikora, Frederick D. Osterholtz
  • Patent number: 6846780
    Abstract: The invention concerns a lubricating composition, in the form of an oil-in-water emulsion, based on siloxane and not releasing hydrogen comprising: (a) a polydiorganosiloxane oil non-reactive to the lubricating properties having a dynamic viscosity of the order of 5.10?2 to 30.102 Pa.s at 25° C.: (b) a reactive linear polydiorganosiloxane oil having per molecule at least two OH groups, said polydiorganosiloxane having a dynamic viscosity at 25° C. ranging between 5.10?2 to 30.102 Pa.s: (c) a crosslinking agent soluble in the silicone phase comprising at least two functions capable of reacting with the reactive polydiorganicsiloxane oil (b); (d) a water soluble crosslinking agent: (e) a surfactant: (f) a condensation catalyst capable of catalysing the reaction of oil (b) with the crosslinking agent (c) and/or (d): and (g) water: compositions comprising a soluble polyorganosiloxane soluble in the silicone phase and bearing, before emulsification, condensable hydroxyl substitutes being excluded.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: January 25, 2005
    Assignee: Rhodia Chimie
    Inventors: Yves Giraud, Gérald Guichard, Ian Hawkins
  • Patent number: 6825153
    Abstract: The invention concerns a lubricating composition, in the form of an oil-in-water emulsion, based on siioxane and not releasing hydrogen comprising: (a) a polydiorganosiloxane oil non-reactive to the lubricating properties having a dynamic viscosity of the order of 5.10−2 to 30.102 Pa.s at 25° C.; (b) a polyorganosiloxane resin bearing, before emulsification, condensable hydroxyl substituents and comprising before emulsification at least two syloxyl units selected among those of formula (R0)3SiO1/2(M); (R0)2SiO2/2(D); R0SiO3/2(T) and SiO4/2(Q), one at least of said units being a T or Q unit, formulae wherein: R0 represents a monovalent organic substituent, the average number per molecule of organic radicals R0 for a silicon atom ranging between 1 and 2; and said resin having a weight content of hydroxyl substituents ranging between 0.1 and 10 wt. %, and, preferably between 0.2 and 5 wt.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: November 30, 2004
    Assignee: Rhodia Chimie
    Inventors: Yves Giraud, Gérald Guichard, Ian Hawkins
  • Publication number: 20040209784
    Abstract: A non-volatile lubricious coating composition is provided for use with medical devices, such as hypodermic needles, catheters, and the like. The coating composition includes a first siloxane polymer having a very low viscosity less than about 50 centistokes, a second siloxane polymer having a high viscosity greater than about 1,000 centistokes, a reactive silicone polymer which is capable of crosslinking upon exposure to radiation, such as a UV curable silicone acrylate, and a photoinitiator to accelerate cross-linking of the reactive silicone polymer. The coating composition may further include an aminofunctional siloxane polymer to promote adhesion to metal surfaces when used with needles. The coating composition provides flowability without the need for any volatile organic solvent, and is capable of curing to provide adhesion and lubricity.
    Type: Application
    Filed: March 4, 2004
    Publication date: October 21, 2004
    Inventors: Lori Hardman, Mark Spinti, Jie Jane Ren, An-Min Jason Sung, Brian James Pelkey, Shang-Ren Wu, Lawrence Korona
  • Patent number: 6673752
    Abstract: A cutting fluid applicable for the machining of vitreous, crystalline or aggregate materials such as glass, glass-ceramics, ceramics, stone, concrete, silicon and the like. The cutting fluid comprises a solution containing organic molecules—in particular silanes, silanols, and siloxanes—capable of forming covalent bonds with such vitreous, crystalline or aggregate materials. The organic molecules in the cutting fluid is believed to improve the rate of manufacturing productivity, surface finish quality, and decrease the incidence of sub-surface damage caused by particulate adhesion to the cutting or abrading tool during a machining process of these kinds of substrates. The reduced clogging of cutting surfaces and increased lubricity of the cutting fluid may also prolong the useful life of the machining tools when used against these kinds of substrates.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: January 6, 2004
    Assignee: Corning Incorporated
    Inventors: Dana C. Bookbinder, David F. Dawson-Elli
  • Publication number: 20030114321
    Abstract: The invention concerns a lubricating composition, in the form of an oil-in-water emulsion, based on siioxane and not releasing hydrogen comprising: (a) a polydiorganosiloxane oil non-reactive to the lubricating properties having a dynamic viscosity of the order of 5.10−2 to 30.102 Pa.s at 25° C.; (b) a polyorganosiloxane resin bearing, before emulsification, condensable hydroxyl substituents and comprising before emulsification at least two syloxyl units selected among those of formula (R0)3SiO1/2(M); (R0)2SiO2/2(D); R0SiO3/2(T) and SiO4/2(Q), one at least of said units being a T or Q unit, formulae wherein: R0 represents a monovalent organic substituent, the average number per molecule of organic radicals R0 for a silicon atom ranging between 1 and 2; and said resin having a weight content of hydroxyl substituents ranging between 0.1 and 1 0 wt. %, and, preferably between 0.2 and 5 wt.
    Type: Application
    Filed: September 13, 2002
    Publication date: June 19, 2003
    Inventors: Yves Giraud, Gerald Guichard, Ian Hawkins
  • Patent number: 6300287
    Abstract: A parting agent for a copier toner is disclosed. The parting agent exhibits no loss of parting properties or generation of gel under high-temperature conditions near 200° C., and causes no problems with paper feed or the like. The parting agent is composed of a diorganopolysiloxane of the average unit formula: RaSiO4−a/2, where the R groups are the same or different and are substituted or unsubstituted monovalent hydrocarbon groups, with at least 50 mol % of the R groups being methyl groups, and 1.95 ≦a≦2.20. The diorganopolysiloxane has a viscosity of 10 to 100,000 centistokes at 25° C., and generates no more than 5 ppm (by weight) of formaldehyde per hour when kept at 200° C. in an air atmosphere.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: October 9, 2001
    Assignee: Dow Corning Toray Silicone Company, Ltd.
    Inventors: Hiroki Ishikawa, Tsutomu Naganawa, Isao Ona
  • Patent number: 6130190
    Abstract: A lubricating composition comprising a liquid crystal and a surfactant is disclosed. The inventive composition increase the lubricity of lubricant oils, reduce the wear rate or metals being lubricated, and increase the load bearing properties of lubricants between various surfaces, for example, within an engine and in the rolling of metals.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: October 10, 2000
    Assignee: Pennzoil Products Company
    Inventors: Selda Gunsel, Frances E. Lockwood
  • Patent number: 6046143
    Abstract: This invention relates to a new water soluble lubricant for a medical device, such as a catheter and an introducer needle. The lubricant is a silicone based water soluble compound. Preferably, a silicone surfactant is used such as a block copolymer polyalkylene oxide-modified polydimethylsiloxane. Alternatively, an alkylene oxide modified silicone glycol may be used as the lubricant. In addition, lecithin can be added as a lubricant. The lubrication solution includes a solution stabilizer to clarify the solution and antimicrobial agents to inhibit microbial growth in the water solution or on the coated product. Vitamin E or its derivatives may also be used in the lubrication solution.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: April 4, 2000
    Assignee: Becton Dickinson and Company
    Inventors: Azhar J. Khan, Mohammad A. Khan
  • Patent number: 5834613
    Abstract: Chemically stable, perfluorinated, linear or cyclic polyorganosiloxanes (POS), and a process for the preparation thereof. Antifoams, agents for lowering surface tension, dirt repellents, antiadhesives, lubricants, oleophobic and/or hydrophobic agents, coatings and other compositions containing the perfluorinated POS are disclosed.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: November 10, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Philippe Jost, Philippe Karrer, Gerard Mignani, Philippe Olier
  • Patent number: 5789354
    Abstract: A lubricative composition which can retain lubricating oil or grease without degrading it, which is heat-resistant and mechanically strong, and can be used continuously for a much longer time than conventional ones without the possibility of shortage of lubricant supply. It includes a first component, which is a modified silicone oil having reactive organic groups, a second component, which is a curing agent having organic groups that react with the reactive organic groups, and a third component, which is a lubricating oil or grease. The third component is retained in a three-dimensionally reticulated structure of silicone formed by polymerizing the first and second components in the third component. The third component has no compatibility with either the first or second components.
    Type: Grant
    Filed: December 5, 1996
    Date of Patent: August 4, 1998
    Assignee: NTN Corporation
    Inventors: Hidenobu Mikami, Mitsunari Asao
  • Patent number: 5688747
    Abstract: The two part tipping lubricant of this invention comprises water as the solvent. The lubricant is a silicone surfactant, which is non-ionic and which is a good lubricating fluid. No separate surfactant or lubricant is needed. The lubricant solution into which the catheter is dipped may also include low percentages of a solution stabilizer and an antimicrobial agent to clarify the solution and to inhibit microbial growth in the water solution. Vitamin E or its derivative may also be used in the lubrication solution to prevent degradation of the solution.
    Type: Grant
    Filed: March 15, 1996
    Date of Patent: November 18, 1997
    Assignee: Becton Dickinson and Company
    Inventors: Azhar J. Khan, David P. Hopkins, Mohammad A. Khan
  • Patent number: 5625025
    Abstract: The present invention relates to a silicone composition comprising a mixture of (A) an amino-functional diorganopolysiloxane oil free of phenol groups and having at least 1 amino group per molecule and (B) a diorganopolysiloxane oil free of amino groups and having at least 1 phenol group per molecule. The silicone composition has a viscosity of from 10 to 100,000 mm.sup.2 /s at 25.degree. C. and an average phenol equivalent weight of 10,000 to 5,000,000. The silicone compositions of the present invention are highly heat-resistant, exhibit excellent release properties, and superior lubrication properties.
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: April 29, 1997
    Assignee: Dow Corning Toray Silicone Co., Ltd.
    Inventors: Hiroki Ishikawa, Tsutomu Naganawa, Isao Ona
  • Patent number: 5549835
    Abstract: Disclosed are an apparatus having sliding parts and a compound for preventing diffusion or separation of a base oil; and a compound for preventing diffusion or separation of the base oil used for the apparatus: an electronic or electric appliance using a joul heat generating source, means for taking out joul heat to the outside by sliding with said heat generating source, and heat conducting compound intervenient between said heat taking out means and heat generating source; and the heat conducting compound used for the appliance.
    Type: Grant
    Filed: October 19, 1995
    Date of Patent: August 27, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Takao Uematsu, Mitsuyoshi Shoji, Takayuki Nakakawaji, Shigeki Komatsuzaki, Yutaka Ito, Atsushi Morihara, Koji Sato, Shizuo Zushi, Hiroshi Go