Ptfe (polytetrafluoroethylene) Patents (Class 508/181)
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Patent number: 6465398Abstract: The invention relates to improved compositions comprising paraffin waxes and fluoropoylmer micro powders, and to their uses in products and articles where reduced friction is desirable, such as snow slider equipment.Type: GrantFiled: October 15, 2001Date of Patent: October 15, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Carl Bernard Arnold
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Patent number: 6455476Abstract: A lubricant composition for the plastic working of metals that does not require a phosphate undercoating, is waterborne, requires only a simple application process of immersion or spraying followed by drying, and provides an excellent lubricating performance comprises synthetic resin, water-soluble inorganic salt, and water. The weight ratio of the content of salt to that of synthetic resin is from 0.25:1 to 9: 1. This composition can also contain liquid and/or solid lubricating agent(s) and an extreme pressure additive.Type: GrantFiled: December 7, 2000Date of Patent: September 24, 2002Assignee: Henkel CorporationInventors: Yasuo Imai, Shuji Nagata
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Patent number: 6444621Abstract: A grease composition for steering of motorcars which comprises the following components (a) to (f): (a) a thickening agent; (b) a base oil having a pour point of not higher that −40° C.; (c) an organic molybdenum compound; (d) melamine cyanurate; (e) polytetrafluoroethylene; and (f) molybdenum disulfide. The grease composition has load resistance, or seizure-preventing ability and wear-reducing ability high enough to use the grease under severe lubricating conditions, and can impart, to the steering of motorcars, excellent operability at a low temperature.Type: GrantFiled: August 16, 2000Date of Patent: September 3, 2002Assignees: Koyodo Yushi Co., Ltd., Toyota Jidosha Kabushiki KaishaInventors: Takashi Okaniwa, Akira Taniguchi, Fumio Ueda
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Patent number: 6429175Abstract: A lubricating grease composition including the combination of an oil base, a thickener, and bismuth preferably in the form of a bismuth carboxylate. The grease has excellent film strength, improved “anti-washout” capabilities, and, depending on the thickener used, may have no dropping point, meaning that the oil will not separate out at elevated temperatures.Type: GrantFiled: November 20, 2000Date of Patent: August 6, 2002Assignee: New Age Chemical, Inc.Inventors: James A. Stuart, Jr., Douglas A. Wallace
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Patent number: 6413915Abstract: The present invention pertains to a lubricant for a ball-and-socket joint, wherein spherical particles of two different sizes are introduced into an oil or a lubricating grease. The coarser particles act as spacers, which prevent the ball of the ball-and-socket joint from lying on a bearing shell during standstill of the ball-and-socket joint. The finer particles prevent the coarser particles from agglomerating and keep the coarser particles spaced apart from one another and they also keep them distributed in the ball-and-socket joint as a result.Type: GrantFiled: April 9, 2001Date of Patent: July 2, 2002Assignee: ZF Lemförder Metallwaren AGInventor: Werner Stehr
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Publication number: 20020072477Abstract: A grease composition suitable for use with vehicle electrical equipment and vehicle engine starters is disclosed, which has excellent abrasion resistance and anti-seizure property, long service life, excellent lubricity at low temperatures, and has no adverse effect on electric contacts. The composition contains: (A) a silicon-free synthetic oil having a kinematic viscosity of 10 to 60 mm2/s at 40° C.; (B) a urea thickener; (C) melamine cyanurate; and (D) polytetrafluoroethylene.Type: ApplicationFiled: September 28, 2001Publication date: June 13, 2002Applicant: NIPPON MITSUBISHI OIL CORPORATIONInventors: Syouzou Ikejima, Yasuyuki Wakahara, Hirotugu Kinoshita, Kiyomi Sakamoto
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Patent number: 6362135Abstract: This invention discloses novel catalyzed surface composition altering formulations and methods and catalyzed surface coating formulations and methods, which contain one or more catalysts, along with optional other ingredients, wherein the catalysts serve to effect in situ chemical bonding reactions in that the catalysts function to initiate, to promote, to accelerate, and/or to increase the formation and yield of persistent, solid, corrosion-resistant, impact-resistant, wear-resistant, and/or non-stick surface compositions and surface coating films, which may exhibit pigmentation and other aesthetic features, and may be designed to be environmentally benign. The disclosed formulation and methods may be used to alter the surface composition and to coat the surfaces of vehicles, such as aircraft, and to improve the anti-icing characteristics of the vehicle surfaces.Type: GrantFiled: August 25, 2000Date of Patent: March 26, 2002Assignee: Platinum Research Organization, L.L.C.Inventor: F. Conrad Greer
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Patent number: 6358891Abstract: A lubricating/sealing composition is provided according to the present invention and finds particular use as a lubricating medium in internal combustion engines. According to the present invention, the lubricating/sealing composition comprises a base lubricating oil; a plurality of polytetrafluoroethylene particles; a plurality of metal particles; a plurality of molybdenum disulfide particles; an emulsifying agent and a predetermined volume of water. These ingredients are subjected to an elevated temperature, elevated pressure, agitation and shear conditions to produce the composition of the present invention. The composition of the present invention serves not only to provide lubricating properties but also serves as a sealant which seals any areas of the engine which are prone to leaks and the like.Type: GrantFiled: July 20, 2000Date of Patent: March 19, 2002Inventor: Leonard M. Andersen
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Patent number: 6335309Abstract: Die release lubricant is made from powder solid lubricant, adhesion enhancer made of organic or inorganic compound and volatile solvent. Before melted metal is injected into a die for casting, the die release lubricant is sprayed to an inside surface of the die. The die release lubricant is in a liquid state and is uniformly applied to the inside surface of the die. As a result, application efficiency of the die release lubricant is improved while an amount of thermal decomposition gas generated during casting is reduced.Type: GrantFiled: July 20, 1999Date of Patent: January 1, 2002Assignees: Denso Corporation, Nippon Graphite Industries Co., Ltd.Inventors: Hiromi Takagi, Tomoyuki Hatano, Tadao Okura
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Patent number: 6331509Abstract: The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can imparts a relatively high pH and corrosion resistant properties to the grease.Type: GrantFiled: March 27, 2000Date of Patent: December 18, 2001Assignee: Elisha Technologies Co LLCInventors: Robert L. Heimann, Nancy M. Heimann, William M. Dalton, Donald W. Taylor, Todd W. Scrivens
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Patent number: 6316392Abstract: The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can imparts a relatively high pH and corrosion resistant properties to the grease.Type: GrantFiled: August 6, 1999Date of Patent: November 13, 2001Assignee: Elisha Technologies Co LLCInventors: Robert L. Heimann, Nancy M. McGowan, William M. Dalton, Daniel I. Crosby, Donald W. Taylor
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Patent number: 6288012Abstract: A process for lubrication a container, such as a beverage container, by applying to the container, a substantially non-aqueous lubricant. The process provides many advantages as compared to the use of an aqueous lubricant.Type: GrantFiled: November 17, 1999Date of Patent: September 11, 2001Assignee: Ecolab, Inc.Inventors: Minyu Li, Keith Darrell Lokkesmoe, Guang-Jong Jason Wei
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Patent number: 6258758Abstract: This invention discloses novel catalyzed surface composition altering formulations and methods and catalyzed surface coating formulations and methods, which contain one or more catalysts, along with optional other ingredients, wherein the catalysts serve to effect in situ chemical bonding reactions in that the catalysts function to initiate, to promote, to accelerate, and/or to increase the formation and yield of persistent, solid, corrosion-resistant, impact-resistant, wear-resistant, and/or non-stick surface compositions and surface coating films, which may exhibit pigmentation and other aesthetic features, and may be designed to be environmentally benign. This invention discloses novel means to alter the surface composition and to coat the surface of metals, plastics, fabrics, woods, and the like through catalytically supported chemical reactions that produce functionally improved surface performance for industrial, commercial, domestic and other purposes.Type: GrantFiled: February 25, 1999Date of Patent: July 10, 2001Assignee: Platinum Research Organization LLCInventor: F. Conrad Greer
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Publication number: 20010003733Abstract: The invention relates to process for reducing the friction between new and/or freshly washed transport containers and conveyors, in which a composition containing at least one component with lubricating properties is applied to at least part of the surface of the container before it is placed on the conveyor, to containers of which at least part of the outer surface is finished with a film or a coating which contains lubricating components to reduce friction during transport on conveyors and to installations which are intended, and may advantageously be designed, for the transport of such containers.Type: ApplicationFiled: December 6, 2000Publication date: June 14, 2001Applicant: Henkel-Ecolab GmbH & Co. OHGInventors: Stefan Kupper, Michael Schneider, Walter Grobe Bowing, Alfred Laufenberg, Harald Kluschanzoff
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Patent number: 6245721Abstract: The lubricant additive formulation for introduction into a petroleum based carrier, such as, motor oil, in which the additive contains substantially equal amounts of naphthenic oil and chlorinated paraffin with minor amounts of a paraffin oil and anti-wear and anti-oxidant agents; and in certain applications, metal powders or soaps are introduced into the additive together with an effective amount of grease necessary to maintain the metal particles in suspension when introduced into the liquid carrier.Type: GrantFiled: November 2, 1999Date of Patent: June 12, 2001Inventors: Peter Chun, John A. Elverum
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Patent number: 6211121Abstract: A lubricant contains a fire-resistant water/glycol mixture combined with polytetrafluoroethylene, and is useful in the hydraulic systems of die casting machines, for example. The addition of polytetrafluoroethylene enhances the lubricity of fire-resistant hydraulic fluids thereby reducing the associated equipment maintenance.Type: GrantFiled: December 31, 1998Date of Patent: April 3, 2001Inventor: John Dale Willis
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Patent number: 6121208Abstract: A rolling sliding part is in relative rolling contact or sliding contact with a companion member, and is formed on a contact surface thereof with a lubricating film (5) composed of a polymer which contains fluorine with a functional group and in which particles (6) of polytetrafluoroethylene resin are dispersed and mixed. The lubricating film (5) exhibits a favorable lubricating property and generates little dust, and the particles (6) mixed in the film provide a favorable cushioning action under Loading. As the lubricating film (5) itself and the particles (6) are fluorine based, they provide for a good compatibility therebetween.Type: GrantFiled: August 11, 1998Date of Patent: September 19, 2000Assignee: Koyo Seiko Co., Ltd.Inventor: Hiroshi Toyota
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Patent number: 6066601Abstract: A coating additive composition containing the combination of a) at least one non-crosslinked product made by the reaction of an amine and a carboxylic acid, the product containing at least two hydrocarbyl groups each having about 12 to about 100 carbon atoms; and (ii) at least one fluoropolymer. The additive composition is useful as a nonflatting slip-enhancing agent in both in solvent-based and powder coatings. The cured coatings exhibit lower coefficient of friction and substantial gloss retention.Type: GrantFiled: October 6, 1998Date of Patent: May 23, 2000Assignee: The Lubrizol CorporationInventor: Thomas F. Steckel
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Patent number: 6034038Abstract: A lubricant additive formulation for addition to conventional motor oil to improve the lubricating properties of the engine oil and enhance the performance of the engine. The engine treatment oil additive comprises a synergistic blend of an oil soluble molybdenum additive, polyalphaolefin, ester such as a polyolester or diester, polytetrafluoroethylene, dispersant inhibitor containing zinc dithiophosphate, mineral oil base stock, viscosity index improvers, and borate ester used in combination with a conventional crankcase lubricant at about a 20 to about a 25% volume/percent.Type: GrantFiled: August 27, 1997Date of Patent: March 7, 2000Assignee: Ashland Inc.Inventors: Frances E. Lockwood, Richard Joseph Baumgart, Michael Andrew Dituro
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Patent number: 6017857Abstract: The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can imparts a relatively high pH and corrosion resistant properties to the grease.Type: GrantFiled: March 20, 1998Date of Patent: January 25, 2000Assignee: Elisha Technologies Co LLCInventors: Robert L. Heimann, Nancy M. McGowan, William M. Dalton, Daniel I. Crosby
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Patent number: 6010984Abstract: The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can imparts a relatively high pH and corrosion resistant properties to the grease.Type: GrantFiled: January 30, 1998Date of Patent: January 4, 2000Assignee: Elisha Technologies Co. LLCInventors: Robert L. Heimann, Nancy M. McGowan, William M. Dalton
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Patent number: 6010985Abstract: The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can imparts a relatively high pH and corrosion resistant properties to the grease.Type: GrantFiled: August 7, 1998Date of Patent: January 4, 2000Assignee: Elisha Technologies Co L.L.C.Inventors: Robert L. Heimann, Nancy M. McGowan, William M. Dalton, Daniel I. Crosby
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Patent number: 5898022Abstract: A light-duty, multi-purpose lubricant particularly formulated for use on the diverse bearing surfaces mechanisms which operate in a dirty or dusty environment, such as bicycle chains. The lubricant comprises an insoluble bond weakening agent, preferably metallic soaps such as Calcium Stearate, in suspension in a volatile solvent-based solution of wax and oil. After application and evaporation of the solvent the composite dry lubricant exhibits good penetration and load bearing properties without the dirt-retaining character of oils or greases. The undissolved particles of the bond weakening agent combine with dirt particles to break-down portions of the lubricant into a dry flaky particles which are sloughed off the mechanism. Soluble waxes having different solid phase crystalline structures may be blended with the paraffin to reduce the rate of sloughing. The amount of solvent may be adjusted or eliminated depending on the application. A surfactant can be added provide for coating wet mechanisms.Type: GrantFiled: June 19, 1996Date of Patent: April 27, 1999Inventor: Paul D. Maples
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Patent number: 5877128Abstract: This invention discloses novel catalyzed lubricant additives and catalyzed lubricant systems, which contain one or more catalysts, along with optional other additives, wherein the catalysts serve to accelerate the rate and increase the yield of the lubricant bonding reactions between the catalyzed lubricants and the wear surfaces being lubricated.Type: GrantFiled: April 26, 1996Date of Patent: March 2, 1999Assignee: Platinum Research Organization Ltd.Inventor: F. Conrad Greer
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Patent number: 5851635Abstract: A device for transmitting motion comprises a flexible elastomeric element and at least one rigid element in surface contact with one another, wherein the surface of said flexible elastomeric element that comes into surface contact with said rigid element has been surface treated with a halogenated polyether.Type: GrantFiled: July 3, 1995Date of Patent: December 22, 1998Assignee: Dayco PTI, S.p.A.Inventors: Tommaso Di Giacomo, Mauro Piccirilli, Massimo Matricardi
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Patent number: 5763369Abstract: According to the invention, combining some or all of the following components: oil soluble Molybdenum additive (Molyvan 855--Vanderbilt Chemical); ("Synthetic") polyalphaolefin (PAO) 4 cSt; PAO 6 cSt and/or synthetic diester (e.g., Chemaloy M-22A); PTFE (polytetrafluoroethylene colloidal dispersed product--Acheson Chemical) Dispersant Inhibitor (DI) package containing zinc dithiophosphate (ZDP), etc., (Chemaloy D-036); Mineral Oil Base Stock; Viscosity Index Improver (VI) (Shellvis 90-SBR); into a package for addition to conventional motor oil results in improved wear, oxidation resistance, viscosity stability, engine cleanliness, fuel economy, cold starting, and inhibited acid formation. It has been discovered that when added to the crankcase of an internal combustion, e.g., spark ignition (SI) engine at most preferably approximately 20-25 vol. % with the conventional crankcase lubricant, this provides synergistic performance improvement of the oil and engine.Type: GrantFiled: November 4, 1994Date of Patent: June 9, 1998Assignee: Ashland, Inc.Inventors: Richard J. Baumgart, Michael A. Dituro
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Patent number: 5641731Abstract: A motor oil performance-enhancing engine treatment oil additive formulated for addition to conventional motor oil to improve the lubricating properties of the engine oil and enhance the performance of the engine.The novel engine additive comprises a synergistic combination of chemical constituents including an oil soluble molybdenum additive, polyalphaolefin, diester, polytetrafluoroethylene, dispersant inhibitor containing zinc dithiophosphate, mineral oil base stock, viscosity index improvers, and borate ester used in combination with a conventional crankcase lubricant at about a 20 to about a 25% volume/percent.Type: GrantFiled: May 31, 1995Date of Patent: June 24, 1997Assignee: Ashland, Inc.Inventors: Richard Joseph Baumgart, Michael Andrew Dituro, Frances E. Lockwood
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Patent number: 5624887Abstract: Multilayered sliding members made of a lubricating composition containing polytetrafluoroethylene and 1 to 40 wt % of zinc oxide whiskers as a filler; and a porous sintered metal layer formed on a steel backing are disclosed, in which the lubricating composition is impregnated in and coated on the porous sintered metal layer.Type: GrantFiled: January 30, 1995Date of Patent: April 29, 1997Assignee: Oiles CorporationInventors: Takashi Nakamaru, Tadashi Watai, Akihiko Okimura, Sumihide Yanase
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Patent number: 5565417Abstract: The present invention provides a specific hybrid series of transition metal polymer matrix composite sets which create durable friction reducing, wear, and corrosion resistance characteristics which can be used in a powder or liquid form, or, which can be bonded to a desired surface at ambient temperature. The specific components are combinations of polytetrafluoroethylene and molybdenum disulfide, polytetrafluoroethylene and tungsten disulfide, or tungsten disulfide and molybdenum disulfide. This invention brings together the unique properties of organic chemistry (polytetrafluoroethylene) and inorganic chemistry (tungsten disulfide, or molybdenum disulfide). This invention creates a synergistic interaction which enhances the wear resistance properties of polytetrafluoroethylene while simultaneously improving the friction reducing properties of molybdenum disulfide, or tungsten disulfide.Type: GrantFiled: June 26, 1995Date of Patent: October 15, 1996Inventor: Vincent F. Salvia
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Patent number: 5554308Abstract: A lubricant for wire feeding and wire drawing which comprises polytetrafluoroethylene powder, 0.5-40 .mu.m (or 0.5-20 .mu.m) in particle diameter, dispersed in water or an aqueous dispersion containing polytetrafluoroethylene powder, 0.1-0.4 .mu.m in particle diameter.A welding wire whose surface is coated with a lubricant mentioned above and a welding wire which has been drawn by the aid of a lubricant mentioned above.Type: GrantFiled: June 5, 1995Date of Patent: September 10, 1996Assignee: Kabushiki Kaisha Kobe Seiko ShoInventors: Norio Masaie, Tomoyuki Tachibana, Koji Seita, Yasuo Araike