Friction Element Composition Or Process Of Preparing Patents (Class 523/149)
  • Patent number: 11890896
    Abstract: A preparation method of itaconate-butadiene bio-based engineering rubber belongs to the bio-based engineering rubber area. The bio-based engineering rubber of the present disclosure is formed through chemical crosslinking of copolymers, which are formed by polymerization of itaconate and butadiene emulsion. The number average molecular weight of the itaconate-butadiene copolymer is about 53000-1640000, and weight-average molecular weight is about 110000-2892000. Itaconate-butadiene copolymers are formed by polymerization of itaconate and butadiene emulsion, then and chemical crosslinking of the copolymer is performed to form bio-based engineering rubber using a traditional sulfur vulcanizing system. The bio-based engineering rubber has high molecular weights as well as lower glass-transition temperatures and can be vulcanized using the traditional sulfur vulcanizing system.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 6, 2024
    Assignees: BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Liqun Zhang, Xinxin Zhou, Runguo Wang, Weiwei Lei, He Qiao, Kuo-chih Hua, Joseph Kulig, Surendra K Chawla
  • Patent number: 11565478
    Abstract: There is disclosed additive manufacturing apparatus comprising: a controller to: receive object data relating to an object to be generated; and define print data for additive manufacture of the object by ejection of a print agent on build material in a pattern corresponding to selective fusing of the build material, wherein the print data is defined based on the object data so that the pattern defines a shield feature embedded within the object to inhibit fusing of build material corresponding to the shield feature relative build material corresponding to an adjacent portion of the object; and a print agent distributor to eject a print agent on build material based on the print data.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: January 31, 2023
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Luis Garcia, Pol Fornos, David Ramirez Muela
  • Patent number: 11274721
    Abstract: An asbestos-free friction material includes inorganic and/or organic and/or metallic fibers, at least one binder, at least one friction modifier or lubricant, at least one filler or abrasive and a carbonaceous material constituted by a microstructure. The microstructure is in the form of flakes or scales of micrometric planar dimensions and of nanometric thickness consisting of a substantially pure graphene mono- or multilayers, preferably pre-blended with at least part of the organic binder.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: March 15, 2022
    Inventors: Agustin Sin Xicola, Luca Martinotto, Paolo Galimberti
  • Patent number: 11155733
    Abstract: A friction material composition containing a binder, an organic filler, an inorganic filler and a fibrous base material, wherein the friction material composition either contains no copper as an element or has a content of copper as an element that does not exceed 0.5% by mass, contains ?-alumina and ?-alumina in a mass ratio within a range from 1:20 to 1:5, contains a silicone-containing phenol resin, contains 20 to 35% by mass of a titanate salt, contains 3 to 7% by mass of a graphite having a median diameter of 1 to 30 ?m, and contains antimony trisulfide.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: October 26, 2021
    Assignees: Showa Denko Materials Co., Ltd., NISSAN MOTOR CO., LTD
    Inventors: Masamichi Mitsumoto, Yoshio Ogata
  • Patent number: 11137043
    Abstract: A friction material composition imparts superior friction coefficient, abrasion resistance, aggressiveness against an opposite member, and brake noise preventive characteristics in high speed and high load braking to a friction material, although containing no copper, which can pollute rivers, lakes, the ocean, or other environments, or containing copper in an amount of at most 0.5 mass. Moreover, a friction material and a friction member each uses the friction material composition. The friction material composition includes a binder, an organic filler, an inorganic filler, and a fibrous base material, and the friction material composition contains copper in an amount of at most 0.5 mass % as an element or contains no copper. The binder contains silicone-rubber dispersed phenolic resin in an amount of 5 to 10 mass %. The inorganic filler contains zirconium oxide in an amount of 20 to 33 mass %.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: October 5, 2021
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventor: Kazuaki Matsuba
  • Patent number: 10550249
    Abstract: A polyolefin composition is foamed by a process in which a nucleator is used, and the nucleator comprises 80% or more of unagglomerated fluororesin particles and/or agglomerates of fluororesin particles in which both the unagglomerated particles and the agglomerates are less than 1 ?m in size.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: February 4, 2020
    Assignee: Dow Global Technologies LLC
    Inventors: Gangwei Sun, Mohamed Esseghir, Chester J. Kmiec, Lei Ying, Yabin Sun, XianMin Xu
  • Patent number: 10059793
    Abstract: Provided is a lignin resin composition including a lignin derivative having a weight-average molecular weight of 500 or more and 4000 or less and a novolac-type phenolic resin having a weight-average molecular weight of 1000 or more and 3000 or less, in which the content of the lignin derivative is not higher than the content of the novolac-type phenolic resin. In particular, the cured product (molded product) of a lignin resin composition obtained by melt-mixing such a lignin resin composition, adding hexamethylenetetramine thereto and then heating the resulting mixture has a high bending strength. Such a lignin resin composition is utilizable as a thermosetting resin substituting a phenolic resin.
    Type: Grant
    Filed: November 18, 2015
    Date of Patent: August 28, 2018
    Assignee: SUMITOMO BAKELITE CO., LTD.
    Inventors: Hiroshige Nakagawa, Mitsutaka Matsumoto, Taketoshi Murai
  • Patent number: 9346128
    Abstract: A method for producing a pattern of depressions in the friction surface of a friction component for a frictionally operating device, preferably a multiplate clutch or multiplate brake. After the preparation of the friction component, the pattern of depressions is produced by nontraditional material removal, removal of material preferably being accomplished in a contactless manner, particularly preferably with the aid of a laser beam.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: May 24, 2016
    Assignee: BorgWarner Inc.
    Inventors: Ludwig Hermann Moch, Norbert Bastel, Erik Sulzer
  • Patent number: 9039825
    Abstract: Provided is a friction material composition comprising: a binder; a fibrous base material; an abrasive material; an inorganic filler; and an organic filler, wherein the friction material composition further comprises: at least one selected from the group consisting of zinc, a cellulose fiber as the fibrous base materials and a flame retardant fiber as the fibrous base materials; an iron-based fiber as the fibrous base material in an specified amount; and an inorganic abrasive material having a Mohs hardness of 8 or higher and a particle size of 1 ?m or larger as the abrasive material in an amount of 1 wt % or less.
    Type: Grant
    Filed: August 6, 2009
    Date of Patent: May 26, 2015
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Mitsuo Unno, Manabu Ono, Takashi Kikudome
  • Patent number: 8980974
    Abstract: A low copper-containing friction material composition used for brake pad is provided, which consists of 4-6 parts of aramid fiber, 2-2.5 parts of tire powder, 5-6 parts of magnesia, 5-6 parts of red vermiculite, 8-10 parts of ceramic fiber, 3.5-5 parts of magnetite, 7-8 parts of boron-containing phenolic resin, 15-17 parts of calcium sulfate crystal whisker, 16-18 parts of potassium titanate, 15-17 parts of barite, 5.5-7 parts of flake graphite, 6-8 parts of friction powder of cashew nut oil, 6-8 parts of calcined petroleum coke, 1.5-2 parts of boron nitride, 5-7 parts of flake aluminum powder, 0.4-0.5 parts of pure copper fiber, and 0.4-0.6 parts of black silicon carbide. The friction material composition has low content of heavy metal, wherein the content of copper is lower than 0.5%, has a satisfactory high temperature and thermal decay resistant performance, long service life, good abrasion resistance and stable friction coefficient.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: March 17, 2015
    Assignee: Ruiyang Automotive Materials (Xiantao) Co., Ltd.
    Inventor: Jim Zewei Zhang
  • Publication number: 20150065605
    Abstract: A protective floor covering or desk pad comprising a body having an upper and lower planar surface and a copolymer resin coating on the lower planar surface.
    Type: Application
    Filed: September 11, 2014
    Publication date: March 5, 2015
    Inventors: Craig Malmloff, Patrick Jon Foley, Joseph C. Regula, Robert Rafter, Greg Rogers, Shawn Maxwell
  • Patent number: 8962711
    Abstract: A copper-flee friction material composition for brake pads consists of: 0.43 parts of aramid fiber, 1.9 parts of tire powder, 6 parts of heavy magnesia, 2.55 parts of calcined petroleum coke, 8 parts of ceramic fiber, 6.5 parts of phenolic resin, 14 parts of aluminum silicate fiber, 22 parts of potassium hexatitanate crystal whisker, 25 parts of barite powder, 5 parts of granular graphite, 2 parts of antimony sulfide, 2.8 parts of friction powder of cashew nut oil, 0.9 part of boron nitride, 5 parts of flake aluminum powder, and 0.6 parts of tantalum carbide. Trials show that it has satisfactory high temperature and thermal decay resistant performance, long service life, good abrasion resistance and stable friction coefficient. With the friction material of the present invention used, the brake pad of vehicles is sensitive and stable during braking, produces no screech, is comfortable and has no damage on coupling plate.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Ruiyang Automotive Materials (Xiantao) Co., Ltd.
    Inventor: Jim Zewei Zhang
  • Publication number: 20150050502
    Abstract: Pebble or granular based elastomeric surfacing materials that include an aliphatic thermoplastic polyurethane based pebble or granule bonded together with a two-part aliphatic polyurethane binder are provided. In one embodiment, an A side of the two-part binder has at least one polyol, and a B side of the two-part binder has multiple isocyanates. The multiple isocyanates can include for example hydrogenated methylene diphenyldisocyanate and hexamethylene diisocyanate. The A side and the B side of the binder are utilized to bond the pebbles together to form a surface that can be either porous or non-porous. In another embodiment, an A side of a two-part binder includes multiple polyols. The multiple polyols can include for example esterified ricinoleic acid polyols and caprolactone polyols. The A side of the two-part binder can be combined with a B side of the two-part binder and pebbles to form a non-porous surface.
    Type: Application
    Filed: October 24, 2014
    Publication date: February 19, 2015
    Inventor: Gerald M. Saluti
  • Publication number: 20150047930
    Abstract: The invention illustrates a material for friction components of disc brakes comprising between 1% and 8% by weight of at least one preceramic resin and between 2% and 10% by weight of at least one organic resin. It also illustrates a friction component for a disc brake, a disc brake, and a process for producing such a material.
    Type: Application
    Filed: November 21, 2011
    Publication date: February 19, 2015
    Applicant: FRENI BREMBO S.p. A.
    Inventors: Andrea Gavazzi, Lorenzo Cavalli, Massimiliano Valle
  • Publication number: 20140275330
    Abstract: A protective floor covering or desk pad comprising a body having an upper and lower planar surface and a copolymer resin coating on the lower planar surface.
    Type: Application
    Filed: September 3, 2013
    Publication date: September 18, 2014
    Applicant: DEFLECTO, LLC
    Inventors: Craig Malmloff, Patrick Jon Foley, Joseph C. Regula, Robert Rafter
  • Patent number: 8791194
    Abstract: A composition comprising a fluid, and a material dispersed in the fluid, the material made up of particles having a complex three dimensional surface area such as a sharp blade-like surface, the particles having an aspect ratio larger than 0.7 for promoting kinetic boundary layer mixing in a non-linear-viscosity zone. The composition may further include an additive dispersed in the fluid. The fluid may be a thermopolymer material. A method of extruding the fluid includes feeding the fluid into an extruder, feeding additives into the extruder, feeding a material into the extruder, passing the material through a mixing zone in the extruder to disperse the material within the fluid wherein the material migrates to a boundary layer of the fluid to promote kinetic mixing of the additives within the fluid, the kinetic mixing taking place in a non-linear viscosity zone.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: July 29, 2014
    Assignee: Ecopuro, LLC
    Inventor: William L. Johnson, Sr.
  • Patent number: 8790772
    Abstract: A wound friction coating and a method for the production thereof.
    Type: Grant
    Filed: December 24, 2009
    Date of Patent: July 29, 2014
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Tim-Florian Gerbing, Christian Spandern
  • Patent number: 8779025
    Abstract: A method for increasing the wet coefficient of friction of a thermoplastic elastomer includes adding various ingredients to the thermoplastic elastomer. In one embodiment microcrystalline wax, amorphous polyalphaolefin ethylene copolymer, and a copolymer ethylene/propylene and olefins are added to the thermoplastic elastomer. And in another embodiment, microcrystalline wax and copolymer ethylene/propylene and olefins are added to the thermoplastic elastomer. The above compositions are formed into a sheet which can be used alone as a slip-resistant pad, or can be applied to a desired surface (such as that of a surfboard).
    Type: Grant
    Filed: November 12, 2011
    Date of Patent: July 15, 2014
    Inventor: Donald David Stone
  • Patent number: 8748509
    Abstract: A friction material characterized by using a resin composition for friction materials, the resin composition containing, as a binder, an aromatic imide oligomer having an addition-reactive group at an end thereof. Also described is a resin composition for friction materials, containing: a powder of an aromatic imide oligomer having an addition-reactive group at an end thereof; at least one type of fiber selected from the group consisting of carbon fiber, aramid fiber, glass fiber, ceramic fiber, and metal fiber; and an inorganic filler. The friction material and a resin composition for friction materials have good formability and in which the binder itself has excellent heat resistance and mechanical properties, compared to a friction material using a phenolic resin as a binder.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: June 10, 2014
    Assignee: Ube Industries, Ltd.
    Inventors: Hideki Ozawa, Mitsushi Taguchi
  • Patent number: 8673998
    Abstract: A method for preparing a polymeric composition, the method comprising providing a polymer cement including a polymer and a solvent; introducing a cold-flow inhibitor with the polymer cement, where the cold-flow inhibitor is selected from the group consisting of vicinal diamides, vicinal diureas and vicinal amide-ureas; and isolating at least a portion of the polymer and the cold-flow inhibitor from the solvent to provide a polymeric composition including the polymer and the cold-flow inhibitor.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: March 18, 2014
    Assignee: Bridgestone Corporation
    Inventors: Kevin M McCauley, Toshihiro Uchiyama, Christine M. Rademacher, Terrence E. Hogan
  • Patent number: 8656950
    Abstract: A method of producing treated liquid hydrocarbons. The method begins by pressurizing a latex in a pressure vessel. This is followed by flowing the latex from the pressure vessel into a pipeline containing liquid hydrocarbons to produce treated liquid hydrocarbons. In this embodiment the latex comprises a drag reducing polymer.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: February 25, 2014
    Assignee: Phillips 66 Company
    Inventor: Timothy L. Burden
  • Patent number: 8636116
    Abstract: A brake pad obtainable by peroxide cross-linking with a mixture comprising: a polymeric base having from 10 to 40 parts by weight of hydrogenated acrylonitrile-butadiene rubber (HNBR); from 90 to 60 parts by weight of a vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene terpolymer; and, fibers from 5 to 15 parts by weight per 100 parts by weight of polymeric base.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: January 28, 2014
    Assignee: Campagnolo S.r.l.
    Inventor: Paolo Fabris
  • Patent number: 8616236
    Abstract: A method begins by obtaining a slipstream of a liquid. The slipstream of liquid is then mixed upstream of an injection pump with a latex comprising a drag reducing polymer to produce a drag reducing mixture. The drag reducing mixture is then injected into a liquid hydrocarbon to produce a treated liquid hydrocarbon.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: December 31, 2013
    Assignee: Phillips 66 Company
    Inventor: Timothy L. Burden
  • Patent number: 8536244
    Abstract: The friction lining mixture for a friction material for brake and clutch linings, the brake and clutch linings contains metal fibers and/or powder, functional fillers, lubricants and organic compounds for improving the performance capability of the friction pairing metallic and/or alloyed and/or bound tin in an amount of 0.5 to 50.0 percent by weight, preferably 2.0 to 10.0 percent by weight, the copper content in the friction lining mixture being 0.001 to 4.999 percent by weight, preferably 0.001 to 0.499 percent by weight.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: September 17, 2013
    Assignee: Honeywell Bremsbelag GmbH
    Inventors: Norbert Schoo, Stephan Ernesti, Andreas Goldschmidt, Thomas Pfannebecker, Gerhard Burmester
  • Publication number: 20130225719
    Abstract: A resin composition for a friction material which is produced by a process including performing polymer blending of a phenol resin and a lignin; and a friction material including the resin composition. The resin composition for a friction material is useful as a binder in the friction material.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 29, 2013
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventor: Akebono Brake Industry Co., Ltd.
  • Patent number: 8455568
    Abstract: A post-treated polymeric dispersant which comprises reacting (I) a post-treating agent selected from a cyclic carbonate, a linear mono-carbonate, a linear poly-carbonate, an aromatic polycarboxylic acid or an aromatic polycarboxylic anhydride or an aromatic polycarboxylic acid ester and (II) an oil-soluble lubricating oil additive composition prepared by the process which comprises reacting a copolymer, with at least one ether compound and with at least one aliphatic compound capable of reacting with at least one monocarboxylic acid or ester thereof, or dicarboxylic acid, anhydride or ester thereof.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: June 4, 2013
    Assignee: Chevron Oronite Company LLC
    Inventor: William R. Ruhe, Jr.
  • Patent number: 8450250
    Abstract: A method of preparing a drag reducing polymer wherein the drag reducing polymer is able to be injected into a pipeline, such that the friction loss associated with the turbulent flow through the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is injected into a pipeline of liquid hydrocarbon hydrocarbon having an asphaltene content of at least 3 weight percent and an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon wherein the viscosity of the treated liquid hydrocarbon is not less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. The drag reducing polymer has a solubility parameter within 4 MPa1/2 of the solubility parameter of the liquid hydrocarbon. The drag reducing polymer is also added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Patent number: 8450251
    Abstract: A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Patent number: 8450249
    Abstract: A method of introducing a drag reducing polymer into a pipeline such that the friction loss associated with the turbulent flow though the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is introduced into a liquid hydrocarbon having an asphaltene content of at least 3 weight percent and an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon. The treated liquid hydrocarbon does not have a viscosity less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. Additionally, the drag reducing polymer is added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: May 28, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Patent number: 8444816
    Abstract: The present invention relates to thermoplastic and polyareneazole pulp for use as reinforcement material in products including for example fluid sealing materials, as a processing aid including its use as a thixotrope, and as a filter material. The pulp comprises (a) irregularly shaped, thermoplastic fiber fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures and (c) water, whereby thermoplastic fiber fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such thermoplastic and polyareneazole pulp.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 21, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Achim Amma, Stephen D. Maloney, Mikhail R. Levit
  • Patent number: 8444815
    Abstract: The present invention relates to fibrous pulp comprising a combination of polypyridobisimidazole fibrous structures and fibrous structures derived from another polymer. The invention further relates to processes for making such pulp and articles comprising the pulp.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 21, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Achim Amma, Kevin A. Mulcahy
  • Patent number: 8444817
    Abstract: The present invention relates to thermoset and polyareneazole pulp for use as reinforcement material in products including for example fluid seals and friction materials, as a processing aid including its use as a thioxotrope, and as a filter material. The pulp comprises (a) irregularly shaped, thermoset fiber fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures and (c) water whereby thermoset fiber fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such thermoset and polyareneazole pulp.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: May 21, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: Achim Amma
  • Patent number: 8431629
    Abstract: In a wet friction material, inorganic filler of small particle size is added to fill clearances or space between fibers with the inorganic filler. The inorganic filler is attached to the fibers with each other to reinforce strength of the wet friction material when an impregnated resin is hardened. Absolute specific gravity of the inorganic filler is set at a fixed value so as to make its compounding quantity small, thereby assuring a pore diameter of a friction material substrate without filling pores of the friction material substrate with the inorganic filler.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: April 30, 2013
    Assignee: Aisin Kako Kabushiki Kaisha
    Inventors: Yuko Higashijima, Ryouhei Hoshino, Takuya Muranaka
  • Patent number: 8426498
    Abstract: A method of introducing a drag reducing polymer into a pipeline such that the friction loss associated with the turbulent flow though the pipeline is reduced by suppressing the growth of turbulent eddies. The drag reducing polymer is introduced into a liquid hydrocarbon having an asphaltene content of at least 3 weight percent and/or an API gravity of less than about 26° to thereby produce a treated liquid hydrocarbon. The treated liquid hydrocarbon does not have a viscosity less than the viscosity of the liquid hydrocarbon prior to treatment with the drag reducing polymer. Additionally, the drag reducing polymer is added to the liquid hydrocarbon in the range from about 0.1 to about 500 ppmw.
    Type: Grant
    Filed: August 11, 2011
    Date of Patent: April 23, 2013
    Assignee: Phillips 66 Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
  • Publication number: 20130096228
    Abstract: In accordance with the present invention, there is provided a friction material. The friction material of the present invention includes a fibrous material, a binder, and a friction modifier. The friction modifier contains an artificial graphite and an inorganic filler. The artificial graphite has an average particle diameter of 1,000 to 3,000 ?m. The inorganic filler has a plurality of convex parts.
    Type: Application
    Filed: June 16, 2011
    Publication date: April 18, 2013
    Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.
    Inventors: Hiroshi Yamamoto, Rie Sugie, Masayo Shitara, Akihiro Hikichi
  • Patent number: 8404082
    Abstract: The present invention relates to wood pulp and polyareneazole pulp for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The pulp comprises (a) irregularly shaped, wood pulp fibrous structures, (b) irregularly shaped, polyareneazole fibrous structures, and (c) water, whereby wood pulp fibrils and/or stalks are substantially entangled with polyareneazole fibrils and/or stalks. The invention further relates to processes for making such wood pulp and polyareneazole pulp.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: March 26, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventors: Achim Amma, Mikhail R Levit
  • Patent number: 8367767
    Abstract: A friction lining for a wet clutch, in particular for a converter lockup, the clutch containing the ingredients—cellulose fibers, aramid fibers, fillers and a bonding agent. To provide a cost-effective friction lining suitable for the application under the conditions of a converter lockup clutch, it is proposed to admix powdered nutshell of percentage weight between 1% and 40%.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: February 5, 2013
    Assignee: Schaeffler Technologies AG & Co., KG
    Inventors: Firoz Jafri, Martin Fuss, Michael Wilfong
  • Publication number: 20130015409
    Abstract: [Means for solving] A graphene oxide sheet which changes to a substance having a graphene structure when reduced, and which is obtainable by dispersing a graphene-containing carbon substance using a dispersant to reduce the size of the aggregate units of the graphene-containing carbon substance, and then oxidizing the graphene-containing carbon substance.
    Type: Application
    Filed: December 18, 2009
    Publication date: January 17, 2013
    Inventor: Bunshi Fugetsu
  • Patent number: 8278370
    Abstract: A friction lining made of a fibrous mixture with fillers and resin for a wet clutch. In order to design the friction lining able to withstand the higher torque to be transmitted, it is proposed to admix further filler with a Mohs hardness greater or equal to 9.0 and smaller or equal to 9.5 in addition to the ingredients of aramid fibers, cellulose fibers, phenol resin and amorphous silicon dioxide and first filler.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: October 2, 2012
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventors: Firoz Jafri, Martin Fuss, Michael Wilfong
  • Patent number: 8247472
    Abstract: A friction material including: an amorphous resin that has a chain-like polymer structure; and other components that constitute the friction material and that are components other than the amorphous resin, wherein dispersion treatment is preliminarily carried out in which the amorphous resin is dispersed in at least one of the other components, and a manufacturing method of the friction material.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: August 21, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Hiroyuki Fujikawa, Satoshi Wakamatsu, Yoshio Shimura, Yuji Nagasawa
  • Patent number: 8222317
    Abstract: The purpose of the present invention is to provide a wet friction material which has a high coefficient of friction, has reduced overall thickness change, and excellent heat resistance (resistance to heat spots). In order to accomplish the purpose, the present invention provides a wet friction material prepared by impregnating a base material including a fibrous substance with a thermosetting resin, and then thermally curing it, wherein the aspect ratio of the fibrous substance is 10 or higher, and the fibrous substance is contained in the base material in an amount of 60 to 75 weight %.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: July 17, 2012
    Assignee: Showa Denko K.K.
    Inventor: Toshihiko Kozutsumi
  • Patent number: 8211272
    Abstract: The present invention relates to para-aramid pulp including meta-aramid fibrids for use as reinforcement material in products including for example friction materials, fluid sealing materials, and papers. The invention further relates to processes for making such pulp.
    Type: Grant
    Filed: May 6, 2010
    Date of Patent: July 3, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Mikhail R. Levit, Achim Amma
  • Publication number: 20120135183
    Abstract: The invention relates to a method for producing a friction element (1) according to which a friction lining is applied onto a support element (2), which friction lining comprises at least one resin (5) and friction-modifying particles (6) and/or fibers (7), wherein the friction-modifying particles (6) and/or fibers (7) are mixed with the at least one resin (5) prior to application onto the support element (2).
    Type: Application
    Filed: November 23, 2011
    Publication date: May 31, 2012
    Applicant: Miba Frictec GmbH
    Inventor: Zisis Tsioptsias
  • Publication number: 20120108698
    Abstract: One exemplary embodiment includes a friction material including a base including a plurality of fibers. The base including an engagement surface, and a plurality of binder particles and friction modifying particles at the engagement surface.
    Type: Application
    Filed: January 9, 2009
    Publication date: May 3, 2012
    Inventors: Robert C. Lam, Feng Dong
  • Publication number: 20120070680
    Abstract: Provided is a friction material composition comprising: a binder; a fibrous base material; an abrasive material; an inorganic filler; and an organic filler, wherein the friction material composition further comprises: at least one selected from the group consisting of zinc, a cellulose fiber as the fibrous base materials and a flame retardant fiber as the fibrous base materials; an iron-based fiber as the fibrous base material in an specified amount; and an inorganic abrasive material having a Mohs hardness of 8 or higher and a particle size of 1 ?m or larger as the abrasive material in an amount of 1 wt % or less.
    Type: Application
    Filed: August 6, 2009
    Publication date: March 22, 2012
    Inventors: Mitsuo Unno, Manabu Ono, Takashi Kikudome
  • Patent number: 8138237
    Abstract: A composition and method for making a composition that increases friction between a first surface and a second surface while also cleaning the first surface. The composition is an anti-slip detergent that can assist in preventing slip-and-fall accidents on wet floors that have recently been mopped. The composition includes a synthetic dimerized thermoplastic resin, a surfactant, tall oil distillate, (2-methoxymethylethoxy)-propanol, 2,2?,2?-trihydroxy-triethylamine, and water. The composition may also include an acrylate copolymer to further enhance its friction-producing properties.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: March 20, 2012
    Inventor: Stephen C. Perry
  • Publication number: 20110281962
    Abstract: A friction material including: an amorphous resin that has a chain-like polymer structure; and other components that constitute the friction material and that are components other than the amorphous resin, wherein dispersion treatment is preliminarily carried out in which the amorphous resin is dispersed in at least one of the other components, and a manufacturing method of the friction material.
    Type: Application
    Filed: July 29, 2011
    Publication date: November 17, 2011
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Hiroyuki Fujikawa, Satoshi Wakamatsu, Yoshio Shimura, Yuji Nagasawa
  • Patent number: 8057591
    Abstract: To provide, without increasing the number of manufacturing steps, a friction material that can effectively inhibit water fade, provide good brake effectiveness and a good wear resistance, and give low aggressiveness against the mating surface. In the friction material comprising the inorganic abrasive material and lubricant, the inorganic abrasive material includes 0.5-10 volume % of the inorganic particle relative to the total amount of the friction material, with Mohs' hardness of 5-8 and the average particle diameter of 0.5-10 ?m, and the graphite and the petroleum coke in amount of 8-15 volume % relative to the total amount of the friction material. Proportion of the graphite and the petroleum coke is 2:8-3:7 volume ratio, and the average particle diameter of the petroleum coke is 400-900 ?m.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: November 15, 2011
    Assignee: Nisshinbo Industries, Inc.
    Inventors: Mitsuaki Yaguchi, Shinya Kaji
  • Patent number: 8022118
    Abstract: A system for reducing pressure drop associated with the turbulent flow of asphaltenic crude oil through a conduit. The crude oil has a high asphaltene content and/or a low API gravity. Such reduction in pressure drop is achieved by treating the asphaltenic crude oil with a high molecular weight drag reducing polymer that can have a solubility parameter within about 20 percent of the solubility parameter of the heavy crude oil. The drag reducing polymer can also comprise the residues of monomers having at least one heteroatom.
    Type: Grant
    Filed: December 22, 2006
    Date of Patent: September 20, 2011
    Assignee: ConocoPhillips Company
    Inventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Jr., Kenneth W. Smith, William F. Harris
  • Patent number: 8017668
    Abstract: The present invention provides a plain bearing having improved bearing properties, especially anti-seizure property, initial conformability and cavitation resistance. According to the present invention, a sliding layer is provided on a surface of a bearing alloy layer comprising of a copper-based or aluminum-based alloy, thereby the sliding layer is so structured that, to a polyamide-imide resin of a main constituent, a polyamide resin is added and mixed under a high shear force to form a polymer-alloyed resin binder, in which 1 to 75% by mass of a solid lubricant is dispersed. The sliding layer can have high toughness and strength, as well as improved anti-seizure property, initial conformability and cavitation resistance.
    Type: Grant
    Filed: June 16, 2008
    Date of Patent: September 13, 2011
    Assignee: Daido Metal Company Ltd.
    Inventors: Takuya Tanaka, Koue Ohkawa, Keiichiro Kume, Yoshimi Kuroda, Hideo Kawabata