Friction Element Composition Or Process Of Preparing Patents (Class 523/149)
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Patent number: 12037516Abstract: The present disclosure relates to a polishing slurry composition and a method of producing the same. The polishing slurry composition according to one embodiment of the present disclosure includes: abrasive particles dispersed so as to have positively-charged particle surfaces; a first dispersant including a nonionic linear polymer; and a second dispersant including an anionic coiling polymer, wherein the polishing slurry composition satisfies the following Expressions 1 and 2: [Expression 1] 4?log(milling energy)<5; and [Expression 2] 20%?Primary particle size reduction rate (%)<35%.Type: GrantFiled: May 29, 2019Date of Patent: July 16, 2024Assignee: KCTECH Co., Ltd.Inventors: Kwang Soo Park, Jun Ha Hwang, Soo Wan Choi, Nak Hyun Choi
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Patent number: 11890896Abstract: 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: GrantFiled: June 2, 2016Date of Patent: February 6, 2024Assignees: BEIJING UNIVERSITY OF CHEMICAL TECHNOLOGY, THE GOODYEAR TIRE & RUBBER COMPANYInventors: Liqun Zhang, Xinxin Zhou, Runguo Wang, Weiwei Lei, He Qiao, Kuo-chih Hua, Joseph Kulig, Surendra K Chawla
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Patent number: 11565478Abstract: 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: GrantFiled: January 13, 2021Date of Patent: January 31, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Luis Garcia, Pol Fornos, David Ramirez Muela
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Patent number: 11274721Abstract: 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: GrantFiled: May 6, 2016Date of Patent: March 15, 2022Inventors: Agustin Sin Xicola, Luca Martinotto, Paolo Galimberti
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Patent number: 11155733Abstract: 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: GrantFiled: October 10, 2018Date of Patent: October 26, 2021Assignees: Showa Denko Materials Co., Ltd., NISSAN MOTOR CO., LTDInventors: Masamichi Mitsumoto, Yoshio Ogata
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Patent number: 11137043Abstract: 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: GrantFiled: April 21, 2016Date of Patent: October 5, 2021Assignee: HITACHI CHEMICAL COMPANY, LTD.Inventor: Kazuaki Matsuba
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Patent number: 10550249Abstract: 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: GrantFiled: November 28, 2014Date of Patent: February 4, 2020Assignee: Dow Global Technologies LLCInventors: Gangwei Sun, Mohamed Esseghir, Chester J. Kmiec, Lei Ying, Yabin Sun, XianMin Xu
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Patent number: 10059793Abstract: 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: GrantFiled: November 18, 2015Date of Patent: August 28, 2018Assignee: SUMITOMO BAKELITE CO., LTD.Inventors: Hiroshige Nakagawa, Mitsutaka Matsumoto, Taketoshi Murai
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Patent number: 9346128Abstract: 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: GrantFiled: June 20, 2012Date of Patent: May 24, 2016Assignee: BorgWarner Inc.Inventors: Ludwig Hermann Moch, Norbert Bastel, Erik Sulzer
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Patent number: 9039825Abstract: 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: GrantFiled: August 6, 2009Date of Patent: May 26, 2015Assignee: Hitachi Chemical Co., Ltd.Inventors: Mitsuo Unno, Manabu Ono, Takashi Kikudome
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Patent number: 8980974Abstract: 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: GrantFiled: June 22, 2011Date of Patent: March 17, 2015Assignee: Ruiyang Automotive Materials (Xiantao) Co., Ltd.Inventor: Jim Zewei Zhang
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Publication number: 20150065605Abstract: 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: ApplicationFiled: September 11, 2014Publication date: March 5, 2015Inventors: Craig Malmloff, Patrick Jon Foley, Joseph C. Regula, Robert Rafter, Greg Rogers, Shawn Maxwell
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Patent number: 8962711Abstract: 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: GrantFiled: June 22, 2011Date of Patent: February 24, 2015Assignee: Ruiyang Automotive Materials (Xiantao) Co., Ltd.Inventor: Jim Zewei Zhang
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Publication number: 20150050502Abstract: 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: ApplicationFiled: October 24, 2014Publication date: February 19, 2015Inventor: Gerald M. Saluti
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Publication number: 20150047930Abstract: 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: ApplicationFiled: November 21, 2011Publication date: February 19, 2015Applicant: FRENI BREMBO S.p. A.Inventors: Andrea Gavazzi, Lorenzo Cavalli, Massimiliano Valle
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Publication number: 20140275330Abstract: 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: ApplicationFiled: September 3, 2013Publication date: September 18, 2014Applicant: DEFLECTO, LLCInventors: Craig Malmloff, Patrick Jon Foley, Joseph C. Regula, Robert Rafter
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Patent number: 8790772Abstract: A wound friction coating and a method for the production thereof.Type: GrantFiled: December 24, 2009Date of Patent: July 29, 2014Assignee: Schaeffler Technologies AG & Co. KGInventors: Tim-Florian Gerbing, Christian Spandern
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Patent number: 8791194Abstract: 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: GrantFiled: February 1, 2013Date of Patent: July 29, 2014Assignee: Ecopuro, LLCInventor: William L. Johnson, Sr.
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Patent number: 8779025Abstract: 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: GrantFiled: November 12, 2011Date of Patent: July 15, 2014Inventor: Donald David Stone
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Patent number: 8748509Abstract: 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: GrantFiled: March 27, 2009Date of Patent: June 10, 2014Assignee: Ube Industries, Ltd.Inventors: Hideki Ozawa, Mitsushi Taguchi
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Patent number: 8673998Abstract: 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: GrantFiled: September 22, 2011Date of Patent: March 18, 2014Assignee: Bridgestone CorporationInventors: Kevin M McCauley, Toshihiro Uchiyama, Christine M. Rademacher, Terrence E. Hogan
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Patent number: 8656950Abstract: 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: GrantFiled: August 12, 2011Date of Patent: February 25, 2014Assignee: Phillips 66 CompanyInventor: Timothy L. Burden
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Patent number: 8636116Abstract: 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: GrantFiled: May 2, 2012Date of Patent: January 28, 2014Assignee: Campagnolo S.r.l.Inventor: Paolo Fabris
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Patent number: 8616236Abstract: 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: GrantFiled: August 12, 2011Date of Patent: December 31, 2013Assignee: Phillips 66 CompanyInventor: Timothy L. Burden
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Patent number: 8536244Abstract: 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: GrantFiled: June 29, 2010Date of Patent: September 17, 2013Assignee: Honeywell Bremsbelag GmbHInventors: Norbert Schoo, Stephan Ernesti, Andreas Goldschmidt, Thomas Pfannebecker, Gerhard Burmester
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Publication number: 20130225719Abstract: 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: ApplicationFiled: February 25, 2013Publication date: August 29, 2013Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventor: Akebono Brake Industry Co., Ltd.
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Patent number: 8455568Abstract: 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: GrantFiled: April 25, 2008Date of Patent: June 4, 2013Assignee: Chevron Oronite Company LLCInventor: William R. Ruhe, Jr.
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Patent number: 8450249Abstract: 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: GrantFiled: August 11, 2011Date of Patent: May 28, 2013Assignee: Phillips 66 CompanyInventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
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Patent number: 8450250Abstract: 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: GrantFiled: August 11, 2011Date of Patent: May 28, 2013Assignee: Phillips 66 CompanyInventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
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Patent number: 8450251Abstract: 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: GrantFiled: August 11, 2011Date of Patent: May 28, 2013Assignee: Phillips 66 CompanyInventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
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Patent number: 8444816Abstract: 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: GrantFiled: April 13, 2010Date of Patent: May 21, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Achim Amma, Stephen D. Maloney, Mikhail R. Levit
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Patent number: 8444817Abstract: 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: GrantFiled: April 13, 2010Date of Patent: May 21, 2013Assignee: E I du Pont de Nemours and CompanyInventor: Achim Amma
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Patent number: 8444815Abstract: 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: GrantFiled: April 13, 2010Date of Patent: May 21, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Achim Amma, Kevin A. Mulcahy
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Patent number: 8431629Abstract: 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: GrantFiled: August 7, 2008Date of Patent: April 30, 2013Assignee: Aisin Kako Kabushiki KaishaInventors: Yuko Higashijima, Ryouhei Hoshino, Takuya Muranaka
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Patent number: 8426498Abstract: 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: GrantFiled: August 11, 2011Date of Patent: April 23, 2013Assignee: Phillips 66 CompanyInventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Kenneth W. Smith, William F. Harris
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Publication number: 20130096228Abstract: 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: ApplicationFiled: June 16, 2011Publication date: April 18, 2013Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Hiroshi Yamamoto, Rie Sugie, Masayo Shitara, Akihiro Hikichi
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Patent number: 8404082Abstract: 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: GrantFiled: April 13, 2010Date of Patent: March 26, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Achim Amma, Mikhail R Levit
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Patent number: 8367767Abstract: 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: GrantFiled: March 1, 2010Date of Patent: February 5, 2013Assignee: Schaeffler Technologies AG & Co., KGInventors: Firoz Jafri, Martin Fuss, Michael Wilfong
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Publication number: 20130015409Abstract: [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: ApplicationFiled: December 18, 2009Publication date: January 17, 2013Inventor: Bunshi Fugetsu
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Patent number: 8278370Abstract: 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: GrantFiled: March 1, 2010Date of Patent: October 2, 2012Assignee: Schaeffler Technologies AG & Co. KGInventors: Firoz Jafri, Martin Fuss, Michael Wilfong
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Patent number: 8247472Abstract: 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: GrantFiled: July 29, 2011Date of Patent: August 21, 2012Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Hiroyuki Fujikawa, Satoshi Wakamatsu, Yoshio Shimura, Yuji Nagasawa
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Patent number: 8222317Abstract: 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: GrantFiled: October 2, 2008Date of Patent: July 17, 2012Assignee: Showa Denko K.K.Inventor: Toshihiko Kozutsumi
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Patent number: 8211272Abstract: 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: GrantFiled: May 6, 2010Date of Patent: July 3, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Mikhail R. Levit, Achim Amma
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Publication number: 20120135183Abstract: 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: ApplicationFiled: November 23, 2011Publication date: May 31, 2012Applicant: Miba Frictec GmbHInventor: Zisis Tsioptsias
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Publication number: 20120108698Abstract: 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: ApplicationFiled: January 9, 2009Publication date: May 3, 2012Inventors: Robert C. Lam, Feng Dong
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Publication number: 20120070680Abstract: 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: ApplicationFiled: August 6, 2009Publication date: March 22, 2012Inventors: Mitsuo Unno, Manabu Ono, Takashi Kikudome
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Patent number: 8138237Abstract: 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: GrantFiled: January 14, 2009Date of Patent: March 20, 2012Inventor: Stephen C. Perry
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Publication number: 20110281962Abstract: 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: ApplicationFiled: July 29, 2011Publication date: November 17, 2011Applicant: Toyota Jidosha Kabushiki KaishaInventors: Kenji Abe, Masaaki Nishiwaki, Hiroshi Isono, Hiroyuki Fujikawa, Satoshi Wakamatsu, Yoshio Shimura, Yuji Nagasawa
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Patent number: 8057591Abstract: 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: GrantFiled: March 16, 2009Date of Patent: November 15, 2011Assignee: Nisshinbo Industries, Inc.Inventors: Mitsuaki Yaguchi, Shinya Kaji
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Patent number: 8022118Abstract: 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: GrantFiled: December 22, 2006Date of Patent: September 20, 2011Assignee: ConocoPhillips CompanyInventors: Stuart N. Milligan, Ray L. Johnston, Timothy L. Burden, Wayne R. Dreher, Jr., Kenneth W. Smith, William F. Harris