With Compound Having Ether Group Patents (Class 508/182)
  • Publication number: 20030073588
    Abstract: A composition that is or comprises a phosphorus-, perfluoropolyether-, and perfluoroalkyl-containing compound is provided. The compound comprises either (i) mono- or polyalkylene oxide linking groups between the phosphorus and the fluorocarbon group, or (ii) no linking group between the phosphorus and fluorocarbon group, or (iii) individual mixtures of (i) and (ii); and the fluorocarbon group can be the perfluoropolyether or perfluoroalkyl group. The compound can also be a partially esterified phosphate, a partially esterified phosphonate, a salt of a partially esterified phosphate, a salt of a partially esterified phosphonate, or mixtures of two or more thereof.
    Type: Application
    Filed: August 6, 2001
    Publication date: April 17, 2003
    Inventors: Jon Lee Howell, Erik Williams Perez
  • Patent number: 6548454
    Abstract: The present invention provides a rolling apparatus comprising a movable member which can undergo rotary or linear motion, a support member which carries the movable member, rolling elements which are interposed between the movable member and the support member and which roll with the movement of the movable member, and a lubricant composition which is disposed between the movable member on which the rolling elements roll and the support member, wherein the lubricant composition is a mixture of (1) a thickening agent which is at least one selected from the group consisting of a solid fluoropolymer, a lamellar mineral powder, an ultrafinely particulate organic material, an organic solid lubricant and an ultrafinely particulate inorganic material, and (2) a base oil comprising a liquid fluorinated polymer oil.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: April 15, 2003
    Assignee: NSK Ltd.
    Inventors: Toyohisa Yamamoto, Atsuhiro Yamamoto, Atsushi Yokouchi
  • Publication number: 20030069144
    Abstract: A rolling bearing holding two or more rolling elements 13 between inner ring 10 and outer ring 11 in such a way that these rolling elements can freely roll, and packed with a grease is described, wherein the grease is a mixture of at least one of metal complex soap-based grease and urea-based grease, each incorporated with 8 to 35% by mass of thickening agent, and fluorine-based grease comprising perfluoropolyether oil as a base oil incorporated with 15 to 42.5% by mass of polytetrafluoroethylene as a thickening agent, ratio of said at least one of the metal complex soap-based grease and urea-based grease versus said fluorine-based grease being 40 to 80:60 to 20 by mass, and total content of the thickening agents being 20 to 30% by mass.
    Type: Application
    Filed: May 10, 2002
    Publication date: April 10, 2003
    Applicant: NSK LTD.
    Inventor: Kenichi Iso
  • Patent number: 6528457
    Abstract: A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: March 4, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jon L. Howell, H. Carl Walther, Gregory A. Bell
  • Publication number: 20030013617
    Abstract: A composition that can be used as lubricant for high electric field including spark plug boots is disclosed. The composition comprises, or is produced by combining, a halogenated oil such as a perfluoropolyether, a polytrichlorofluoroethylene, a fluorosilicone, or combinations of two or more thereof; a basic thickener; and optionally an additional thickener in which the basic thickener is a metal hydroxide, a metal salt, an ammonium salt, or combinations of two or more thereof. The optional additional thickener is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof. Also provided is a spark plug boot that comprises the composition applied thereto.
    Type: Application
    Filed: June 28, 2001
    Publication date: January 16, 2003
    Inventors: Jon L. Howell, H. Carl Walther, Gregory A. Bell
  • Patent number: 6461998
    Abstract: Use as lubricants having a low friction coefficient and an improved noise reduction among moving mechanical parts of dispersions comprising a fluorinated oil and a (per)fluoropolymer, said compositions dilutable with water and obtainable by mixing: a) a fluorinated oil having a (per)fluoropolyether structure, b) a concentrated aqueous dispersion of a (per)fluoropolymer (component b′), stabilized by a non ionic and non fluorinated surfactant, c) a fluorinated and/or hydrogenated surfactant, d) water.
    Type: Grant
    Filed: March 14, 2001
    Date of Patent: October 8, 2002
    Assignee: Ausimont S.p.A.
    Inventors: Daria Lenti, Gabriella Carignano
  • Patent number: 6432887
    Abstract: The rolling device of the present invention utilizes any one of 1) a lubricant containing a liquid fluorinated polymer oil having a kinetic viscosity at −20° C. falling within a range of between 100 mm2/sec and 3,000 mm2/sec and a vapor pressure at 50° C. not higher than 2×10−4 Torr, 2) a lubricant containing a liquid fluorinated polymer oil having a kinetic viscosity at 40° C. falling within a range of between 10 mm2/sec and 400 mm2/sec and having a kinetic viscosity at 100° C. falling within a range of between 3 mm2/sec and 80 mm2/sec, and 3) a lubricant constituted by a grease composition containing a mixture of a liquid fluorinated polymer oil having a kinetic viscosity at 40° C. falling within a range of between 10 mm2/sec and 400 mm2/sec as a base oil and a thickening agent.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: August 13, 2002
    Assignee: NSK Ltd.
    Inventors: Toyohisa Yamamoto, Kenichi Iso, Atsushi Oda
  • Publication number: 20020072477
    Abstract: 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: Application
    Filed: September 28, 2001
    Publication date: June 13, 2002
    Applicant: NIPPON MITSUBISHI OIL CORPORATION
    Inventors: Syouzou Ikejima, Yasuyuki Wakahara, Hirotugu Kinoshita, Kiyomi Sakamoto
  • Patent number: 6358891
    Abstract: 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: Grant
    Filed: July 20, 2000
    Date of Patent: March 19, 2002
    Inventor: Leonard M. Andersen
  • Patent number: 6329326
    Abstract: A rolling bearing has a grease filled therein. The grease contains a perfluoropolyether oil having a straight-chain structure having a dynamic viscosity of from 40 to 160 mm2/s, preferably from 40 to 100 mm2/s, at 40° C. as a base oil and a particulate fluororesin as a base oil, and a particulate polytetrafluoroethylene as a thickening agent.
    Type: Grant
    Filed: September 28, 1999
    Date of Patent: December 11, 2001
    Assignee: NSK Ltd.
    Inventors: Kenichi Iso, Atsushi Yokouchi, Hideki Koizumi, Kenji Okuma, Yasuhiro Hirayama
  • Publication number: 20010031709
    Abstract: Use as lubricants having a low friction coefficient and an improved noise reduction among moving mechanical parts of dispersions comprising a fluorinated oil and a (per)fluoropolymer, said compositions dilutable with water and obtainable by mixing:
    Type: Application
    Filed: March 14, 2001
    Publication date: October 18, 2001
    Inventors: Daria Lenti, Gabriella Carignano
  • Patent number: 6288012
    Abstract: 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: Grant
    Filed: November 17, 1999
    Date of Patent: September 11, 2001
    Assignee: Ecolab, Inc.
    Inventors: Minyu Li, Keith Darrell Lokkesmoe, Guang-Jong Jason Wei
  • Patent number: 6211121
    Abstract: 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: Grant
    Filed: December 31, 1998
    Date of Patent: April 3, 2001
    Inventor: John Dale Willis
  • Patent number: 6025307
    Abstract: Fluorinated greases comprising (by weight):15%-50% polytetrafluoroethylene or tetrafluoroethylene copolymers with other ethylenically unsaturated monomers;30%-84.5% perfluoropolyether oil having a viscosity comprised between 20 and 4000 cSt at 20.degree. C.;0.5%-10% surfactant or dispersant having perfluoropolyether or perfluoroalkylic chain;0%-10% of an anticorrosion and/or antiwear additive, such that the (per)fluoropolymer particles based on TFE or their aggregates have average sizes lower than the micron and show improved diameter WEAR values.
    Type: Grant
    Filed: March 19, 1998
    Date of Patent: February 15, 2000
    Assignee: Ausimont S.p.A.
    Inventors: Alba Chittofrati, Paolo Lazzari, Luca Caluso
  • Patent number: 5990054
    Abstract: 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. A preferred lubricant is formed by sequentially and homogeneously blending its constituents thereby prolonging the shelf life of the final product.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: November 23, 1999
    Inventor: John Dale Willis
  • Patent number: 5851635
    Abstract: 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: Grant
    Filed: July 3, 1995
    Date of Patent: December 22, 1998
    Assignee: Dayco PTI, S.p.A.
    Inventors: Tommaso Di Giacomo, Mauro Piccirilli, Massimo Matricardi
  • Patent number: 5839311
    Abstract: In one aspect, this invention provides a lubricating and colling composition for the forming of metals comprising a hydrofluoroether. In another aspect, the present invention provides a method of forming metals comprising applying to the metal and the workpiece a composition comprising a hydrofluoroether.
    Type: Grant
    Filed: September 17, 1996
    Date of Patent: November 24, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Mark W. Grenfell, Dean S. Milbrath, Daniel D. Krueger, Richard M. Flynn, Frederick E. Behr
  • Patent number: 5633089
    Abstract: There is provided a lubricant which is produced by dissolving a sorbitan ester compound in a solvent such as hexane or toluene. In the sorbitan ester compound, at least one of hydroxyl groups of 1,5-sorbitan is linked by ester linkage to a perfluoro polyether having a terminal carboxyl group and at least an other hydroxyl group is linked by ester linkage to a hydrocarbon having a terminal carboxyl group. There is also provided a thin magnetic metal film type magnetic recording medium or a coated magnetic recording medium in which the above lubricant is held on the surface of a magnetic layer. The lubricant exhibits superior lubricating effects under all conditions and is capable of maintaining the lubricating effects for prolonged time. Consequently, the magnetic recording medium which has the lubricant held on the magnetic layer exhibits superior running durability and resistance against abrasion.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: May 27, 1997
    Assignee: Sony Corporation
    Inventor: Hirofumi Kondo