With Fluorine Compound Patents (Class 508/104)
  • Patent number: 12030117
    Abstract: A sliding member (10) includes a base material (12), a porous sintered layer (14) provided on the base material (12), and a resin layer (16) impregnated into the porous sintered layer (14) and provided on the porous sintered layer (14). In the porous sintered layer (14), a porosity decreases from a second surface (S2) opposite to a first surface (S1) closer to the base material, toward the first surface (S1), the first surface and the second surface each being one of end surfaces in the thickness direction, and a decrease rate of the porosity in the thickness direction (Z) in a first region (E1) occupying 50% or more of the thickness of the porous sintered layer (14) from the second surface (S2) toward the first surface (S1) is larger than a decrease rate of the porosity in the thickness direction (Z) in a second region (E2) other than the first region (E1) in the porous sintered layer (14).
    Type: Grant
    Filed: April 7, 2021
    Date of Patent: July 9, 2024
    Assignee: TAIHO KOGYO CO., LTD.
    Inventors: Naoki Horibe, Noriyuki Wada, Hiroshi Ito
  • Patent number: 10151349
    Abstract: A method is provided that forms a solid film on a bearing component of a rolling bearing. A solution containing a fluorine compound and a lubricant having no functional group is allowed to adhere to the bearing component as a liquid film, the fluorine compound containing 3-(trimethoxysilyl) propyl methacrylate, hexafluoropropene, and methyl methacrylate as components. The solid film is formed on the at least one of the bearing components by hardening the adhering liquid film.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: December 11, 2018
    Assignee: JTEKT CORPORATION
    Inventor: Kazuyoshi Yamakawa
  • Patent number: 9970483
    Abstract: A sliding material for gliding elements includes a thermoplastic matrix material and a PTFE additive. The PTFE additive includes at least two different types of PTFE having different molecular weights.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: May 15, 2018
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventors: Achim Adam, Norbert Fleischhacker
  • Patent number: 9884340
    Abstract: A deposition apparatus and method for depositing an organic material includes an effusion cell, a guide rail, and a cooling channel. The effusion cell extends in a first direction. The guide rail is below the effusion cell and extends in a second direction. The cooling channel is below an upper surface of the guide rail and extends in the second direction.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: February 6, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae Hoon Hwang, Kwan Hee Lee
  • Patent number: 9243204
    Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: January 26, 2016
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: Wallace Gregory Sawyer, Ben Peter Boesi, Nicole Lee McCook, David L. Burris
  • Publication number: 20150051122
    Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.
    Type: Application
    Filed: October 10, 2014
    Publication date: February 19, 2015
    Inventors: Wallace Gregory Sawyer, Ben Peter Boesi, Nicole Lee McCook, David L. Burris
  • Patent number: 8883697
    Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 11, 2014
    Assignee: University of Florida Research Foundation
    Inventors: Wallace Gregory Sawyer, Ben Peter Boesl, Nicole Lee McCook, David L. Burris
  • Patent number: 8728993
    Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: May 20, 2014
    Assignee: University of Florida Research Foundation, Inc.
    Inventors: W. Gregory Sawyer, David L. Burris
  • Publication number: 20140100144
    Abstract: Slide bearings and methods of producing slide bearings are disclosed. The slide bearing has a metal support and a sliding layer. No other layer is in contact with the sliding layer. The sliding layer is applied directly to the metal support. The sliding layer comprises a mixture of at least two polymers P1 and P2, wherein P1 is a fluoropolymer. P2 is a non-fluorinated thermoplastic polymer.
    Type: Application
    Filed: September 27, 2013
    Publication date: April 10, 2014
    Inventors: Julia Ziegler, Olaf Schmitjes, Marc A. Aerts
  • Patent number: 8383561
    Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: February 26, 2013
    Assignee: University of Florida Research Foundation, inc.
    Inventors: W. Gregory Sawyer, David L. Burris
  • Patent number: 8137747
    Abstract: Components, turbochargers, and methods of forming components are provided. In an embodiment, by way of example only, a method of forming a component is provided. The method includes applying a plurality of coated particles to a substrate, wherein each coated particle comprises a solid film lubricant particle and a layer surrounding an entire surface of the solid film lubricant particle, each solid film lubricant particle comprises at least one compound, and the layer comprises a coating material having a greater resistance to oxidation than the compound when subjected to a predetermined processing temperature and heating the substrate to the predetermined processing temperature to form a portion of a coating over the substrate.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: March 20, 2012
    Assignee: Honeywell International Inc.
    Inventors: Reza Oboodi, James Piascik, Bjoern Schenk
  • Patent number: 7998572
    Abstract: A self-lubricating coating is disclosed. The coating includes a base material. The coating also includes a nanoparticle of a first material and a shell substantially surrounding the nanoparticle and including a second material different than the first material.
    Type: Grant
    Filed: August 12, 2008
    Date of Patent: August 16, 2011
    Assignee: Caterpillar Inc.
    Inventors: Andrew Neil McGilvray, Atanu Adhvaryu, Lucy Victoria Davies
  • Patent number: 7910527
    Abstract: A wear resistant lubricious composite includes a synthetic resin binder, a plurality of transfer film forming particles, and a plurality of hard nanoparticles. The hard nanoparticles are selected from the group consisting of metal oxides, metal carbides and metal nitride nanoparticles. A method of forming wear resistant lubricious composite articles includes the steps of providing a liquid phase synthetic resin precursor, adding a plurality of transfer film forming particles and a plurality of hard nanoparticles selected from the group consisting of metal oxide, metal carbide and metal nitride nanoparticles to the resin precursor to form a mixture, adding a hardener to the mixture, and curing the mixture.
    Type: Grant
    Filed: March 21, 2006
    Date of Patent: March 22, 2011
    Assignee: University of Florida Research Foundation
    Inventors: Wallace Gregory Sawyer, Ben Peter Boesl, Nicole Lee McCook, David L. Burris
  • Publication number: 20100275571
    Abstract: The oil-free chain is obtained by connecting a pair of inner link plates which are connected by oil-impregnated bushings and a pair of outer link plates, which are connected by pins inserted into adjacent oil-impregnated bushings of adjacent inner link plates alternately. The oil-impregnated bushing is obtained by impregnating a bushing made of a metal sintered body with perfluoropolyether having a kinematic viscosity at 40° C. equal to or higher than 350 mm2/s. The bushing is impregnated with perfluoropolyether having a kinematic viscosity corresponding to the operating temperature of the oil-free chain.
    Type: Application
    Filed: October 23, 2008
    Publication date: November 4, 2010
    Applicant: Tsubakimoto Chain Co.
    Inventors: Takeshi Kondo, Toshihiko Takashima, Ikutaro Nakagawa, Takahisa Andoh, Masahide Komeda
  • Patent number: 7790658
    Abstract: A PTFE-based composite material includes a PTFE major phase filled with a metal oxide minor phase. The major phase is intermixed with the metal oxide minor phase, wherein the minor phase includes a plurality of irregularly shaped metal oxide nanoparticles. The irregularly shaped nanoparticles provide substantial reductions in steady state wear rate over otherwise similar nanocomposites. The metal oxide can comprise aluminum oxide.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: September 7, 2010
    Assignee: University of Florida Research Foundaction, Inc.
    Inventors: W. Gregory Sawyer, David L. Burris
  • Patent number: 7700004
    Abstract: This invention relates to cleaning compositions comprising unsaturated fluorinated hydrocarbons. The invention further relates to use of said cleaning compositions in methods to clean, degrease, deflux, dewater, and deposit fluorolubricant. The invention further relates to novel unsaturated fluorinated hydrocarbons and their use as cleaning compositions and in the methods listed above.
    Type: Grant
    Filed: November 1, 2006
    Date of Patent: April 20, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Mario Joseph Nappa, Melodie A. Schweitzer, Allen Capron Sievert, Ekaterina N. Swearingen
  • Publication number: 20100086426
    Abstract: A sliding member has a porous sintered base and a resin composition. The porous sintered base is constructed of a porous sintered compact. The resin composition is coated onto the surface of the porous sintered base. The resin composition has a maximum resin layer thickness equal to a pore depth plus at least 10 ?m or more to the pore depth t2. The pore depth is a maximum depth of the pores exposed on the surface of the porous sintered base before the resin composition is coated onto the surface of the porous sintered base.
    Type: Application
    Filed: September 27, 2007
    Publication date: April 8, 2010
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Takeyoshi Ohkawa, Hisashi Inomoto
  • Publication number: 20090118147
    Abstract: A water-based lubricant composition, comprising: water, molybdenum disulfide, polytetrafluoroethylene, and a polymeric binder, wherein the binder is an acrylic resin or a polyurethane resin.
    Type: Application
    Filed: January 10, 2005
    Publication date: May 7, 2009
    Inventors: Aureliano Perez, JR., Kenneth A. Vaught, George P. Hansen
  • Patent number: 7030065
    Abstract: A solid lubricant bar for use in high temperature environments, such as rotary kilns, comprising an organo phosphate, such as triphenyl phosphate, a solid lubricant selected from the group comprising graphite, molybdenum, boron, boron nitride, tungsten, polytetrafluoroethylene, and mixtures thereof; and a soft metal selected from the group consisting of copper, aluminum, tin and mixtures thereof. The solid lubricant bar has an auto-ignition temperature of at least about 1,000 degrees Fahrenheit (537 degrees Celsius).
    Type: Grant
    Filed: July 22, 2004
    Date of Patent: April 18, 2006
    Assignee: C&C Oil Company
    Inventor: Alan C. Lockett, Sr.
  • Patent number: 6915574
    Abstract: A multi-layer seal and washer that provide a seal between a vane stem and a casing in a turbine engine are disclosed. The seal and washer are fabricated from materials such as Teflon fibers and glass fibers and are impregnated with a polyimide resin. The seal and washer are durable and have a low coefficient of friction.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: July 12, 2005
    Assignee: General Electric Company
    Inventors: Thomas C. Mesing, Wayne R. Bowen, David B. Hester
  • Publication number: 20040180796
    Abstract: An object of the present invention is to provide a sliding member which can slide for a longer period of time even in a dry state. In the present invention, the sliding member is provided with a sliding layer 3 containing 1 to 20 vol % of bismuth powder and/or bismuth alloy powder, 20 to 60 vol % of metal powder, and 1 to 20 vol % of a solid lubricant, the sum thereof being not more than 70 vol %, and the balance being a thermosetting resin. Therefore, a large quantity of metal powder and bismuth powder and/or bismuth alloy powder are mixed with the thermosetting resin in the sliding layer 3, so that the thermal conductivity in the sliding layer 3 is improved, and hence heat does not accumulate in a sliding layer portion, by which seizure can be prevented.
    Type: Application
    Filed: March 10, 2004
    Publication date: September 16, 2004
    Applicant: Daido Metal Company Ltd.
    Inventors: Hideki Iwata, Takeshi Shindo, Kotaro Kashiyama
  • Patent number: 6767870
    Abstract: A solid lubricant bar for use in high temperature environments, such as rotary kilns, comprising an organo phosphate, such as triphenyl phosphate, a solid lubricant selected from the group comprising graphite, molybdenum, boron, boron nitride, tungsten, polytetrafluoroethylene, and mixtures thereof; and a soft metal selected from the group consisting of copper, aluminum, tin and mixtures thereof. The solid lubricant bar has an auto-ignition temperature of at least about 1,000 degrees Fahrenheit (537 degrees Celsius).
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: July 27, 2004
    Assignee: C&C Oil Company
    Inventor: Alan C. Lockett, Sr.
  • Publication number: 20040058828
    Abstract: In prior art, the wear resistance and frictional properties of a sliding member are improved by adding bismuth, an alkaline earth metal salt or the like, but not lead, to a polytetrafluoroethylene used as a base resin, in view of the undesirable influences of lead on the environment. However, a further improved wear resistance at a high PV value has been desirable. In the present invention, a sliding member having excellent wear resistance and frictional properties even when used at a high PV value can be obtained by using a thermosetting resin as a base resin in a proportion of 50 to 80 vol % and adding thereto a PTFE with a molecular weight of 3,000,000 or more in a proportion of 10 to 40 vol % and bismuth and/or a bismuth alloy in a proportion of 1 to 20 vol %.
    Type: Application
    Filed: August 22, 2003
    Publication date: March 25, 2004
    Applicant: Daido Metal Company Ltd.
    Inventors: Hideki Iwata, Takahiro Niwa, Takeshi Shindo, Kotaro Kashiyama
  • Publication number: 20040014610
    Abstract: A solid lubricant bar for use in high temperature environments, such as rotary kilns, comprising an organo phosphate, such as triphenyl phosphate, a solid lubricant selected from the group comprising graphite, molybdenum, boron, boron nitride, tungsten, polytetrafluoroethylene, and mixtures thereof; and a soft metal selected from the group consisting of copper, aluminum, tin and mixtures thereof. The solid lubricant bar has an auto-ignition temperature of at least about 1,000 degrees Fahrenheit (537 degrees Celsius).
    Type: Application
    Filed: July 18, 2002
    Publication date: January 22, 2004
    Applicant: C&C Oil Company, Inc.
    Inventor: Alan C. Lockett
  • Patent number: 6498127
    Abstract: Disclosed is a composite sliding material consisting of a back metal, a porous alloy layer which is formed on the surface of the back metal by sintering a copper alloy powder, and a resin layer which is formed so as to impregnate into and cover the porous alloy layer. The alloy layer consists of sintered copper alloy particles and has a thickness of superimposed plural particles. The copper alloy powder has an average particle size of 25 to 100 &mgr;m so that the composite sliding material has smallersliding-contact resistance.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: December 24, 2002
    Assignee: Daido Metal Company Ltd.
    Inventors: Takahiro Niwa, Nobutaka Hiramatsu, Takayuki Shibayama
  • Patent number: 6465089
    Abstract: In order to obtain a sliding material which does not include lead particles and is harmless to the environment, there is provided a sliding material which includes, by volume, 3 to 40% bismuth particles but no lead particles, while having a low coefficient of friction and excellent wear resistance.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: October 15, 2002
    Assignee: Daido Metal Company Ltd.
    Inventors: Takahiro Niwa, Hideki Iwata, Nobutaka Hiramatsu, Takayuki Shibayama
  • Patent number: 6376061
    Abstract: A composite multilayer material is described which exhibits relatively high wear and delamination resistance without impairment of the coefficient of friction in the presence of oil. The composite multilayer material contains at least one powder-form polyaramid in its overlay, the content of PTFE or of PTFE together with the other fluorothermoplastics which form the matrix material amounting to 55-90 vol. %, the content of further fillers amounting to 9.5-44.5 vol. % and the content of polyaramid amounting to 0.5-10 vol. %.
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: April 23, 2002
    Assignee: Federal-Mogul Wiesbaden GmbH
    Inventor: Achim Adam
  • Patent number: 6342306
    Abstract: A bearing material includes a backing metal and a porous sintered metal layer sintered onto a surface of the backing metal, particles of an inorganic substance being contained at grain boundaries of the porous sintered metal layer. The porous sintered metal layer contains tin, nickel, phosphorus, and copper, and the particles of the inorganic substance are those of at least one of graphite, boron nitride, graphite fluoride, calcium fluoride, aluminum oxide, silicon oxide, and silicon carbide.
    Type: Grant
    Filed: November 3, 1999
    Date of Patent: January 29, 2002
    Assignee: Oiles Corporation
    Inventors: Hideo Ozawa, Hiroshi Tsuji, Hirotsugu Tomita
  • Patent number: 6162767
    Abstract: Iron oxide functions as a wear- and cavitation-inhibiting additive in the plastic sliding layer(s) of composite bearings for oil-lubricated applications. The sliding layers predominantly consist of thermoplastic fluoropolymers. The addition of iron oxide to PTFE-based materials reduces the destruction of the sliding surface owing to the appearance of cavitation if the materials are used in the presence of oil.
    Type: Grant
    Filed: December 9, 1997
    Date of Patent: December 19, 2000
    Assignee: Glyco-Metall-Werke Glyco B.V. & Co. KG
    Inventor: Achim Adam
  • Patent number: 6093482
    Abstract: A carbon--carbon composite for friction products comprises an outer friction part and a load bearing structure part supporting the friction part. The friction part contains a mixture of carbon fibers, pitch powder and graphite powder, whereas the structure part is comprised of a pack of alternating layers of the mixture and layers of one member selected from the group consisting of carbon fabrics, carbon-based prepregs and carbon-based, segmented prepregs.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: July 25, 2000
    Assignee: Daewoo Heavy Industries Ltd.
    Inventors: Hyun Cheol Park, Hong Bum Lee, Ik Hyun Oh, Hyun Kyu Shin, Kwang Soo Kim, John Hyun Park
  • Patent number: 6015775
    Abstract: A self-lubricating sintered sliding member and its producing method, the member having excellent seizing resistance and wear resistance even in offset load and high load applications.The self-lubricating sintered sliding member is composed of an iron-family metal substrate and a sintered contact layer that is formed on a sliding side of the iron-family metal substrate and made from a sintered contact material containing an iron-family material. The sintered contact layer has, on a surface thereof, protrusions formed from solid lubricant particles including graphite. A solid lubricant layer is laid over the surface of the sintered contact layer where the protrusions are formed.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: January 18, 2000
    Assignee: Komatsu Ltd.
    Inventors: Takemori Takayama, Yoshikiyo Tanaka
  • Patent number: 5939363
    Abstract: A solid film of a fluorine-containing polyurethane polymer is formed on at least one of the constituent elements (inner and outer rings, rolling member and retainer) of a rolling-contact bearing. The molecules of the solid film of the fluorine-containing polyurethane polymer have urethane bonds, and form a three-dimensional reticular structure. Therefore, the film is unlikely to separate, peel off or wear. The occurrence of the dust can be restricted, and lubrication property can be improved.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: August 17, 1999
    Assignee: Koyo Seiko Co., Ltd.
    Inventors: Hiroshi Toyota, Kazunori Hayashida, Hiroaki Takebayashi
  • Patent number: 5866518
    Abstract: A self lubricating, friction and wear reducing composite material useful over a wide temperature range of from cryogenic temperature up to about 900.degree. C. contains 60-80 wt. % of particulate Cr.sub.2 O.sub.3, dispersed in a metal binder of a metal alloy containing Cr and at least 50 wt. % of Ni, Cr or a mixture of Ni and Cr. It also contains 5-20 wt. % of a fluoride of at least one Group I, Group II, or rare earth metal and, optionally, 5-20 wt. % of a low temperature lubricant metal. Such as Ag, Au, Pt, Pd, Rh and Cu. This composite exhibits less oxidation instability and less abrasiveness than composites containing chromium carbide, is readily applied using plasma spray and can be ground and polished with a silicon carbide abrasive.
    Type: Grant
    Filed: January 16, 1997
    Date of Patent: February 2, 1999
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Christopher Dellacorte, Brian J. Edmonds
  • Patent number: 5780396
    Abstract: A sliding member excellent in cavitation resistance and friction properties which has a sliding surface composed of a resin composition comprising a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin and a polytetrafluoroethylene having a molecular weight of 5,000,000 to 15,000,000 and optionally a solid lubricant, wherein the proportion of the tetrafluoro-ethylene-perfluoroalkyl vinyl ether copolymer resin is 1 to 50% by volume based on the volume of the resin composition and the proportion of the solid lubricant is 0.5 to 10% by volume based on the volume of the resin composition. The addition of the solid lubricant results in an enhancement of friction properties and the use of an exfoliated graphite as the solid lubricant brings about a further enhancement of friction properties.
    Type: Grant
    Filed: January 23, 1996
    Date of Patent: July 14, 1998
    Assignee: Daido Metal Company Ltd.
    Inventors: Tadashi Tanaka, Hidehiko Tamura, Takahiro Niwa
  • Patent number: 5629082
    Abstract: A multilayer material for sliding surface bearings comprises a metal backing layer, a sintered porous bearing layer of a bearing metal, and a low-friction layer consisting of a mixture of PTFE and 5 to 30% by volume metal filler, and fills also the pores of the bearing layer. To reduce the wear the mixture of PTFE and metal filler contains also 5 to 40% by volume PVDF.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: May 13, 1997
    Assignee: Kolbenschmidt Aktiengesellschaft
    Inventors: Hans-Paul Baureis, Werner Schubert, Manfred Muller
  • Patent number: 5573846
    Abstract: A maintenance-free sliding bearing composed of a metal support and a layer which is directly applied thereto and which consists of a copolymer of ethylene-tetrafluoroethylene forming an intermediate layer to which a second sliding layer of plastics is applied.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: November 12, 1996
    Assignee: Norton Pampus GmbH
    Inventors: Friedrich Harig, Dominique Petit