Product Having Elemental Carbon Patents (Class 523/215)
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Patent number: 5744520Abstract: A process for the preparation of polymer compositions which comprises mixing a conductive component with an anionic polymeric latex containing a polymer; adding a cationic surfactant, or flocculant whereby the aggregation of the latex particles and the conductive component particles results; subsequently adding colloidal stabilizer, followed by the addition of a base to obtain a pH of from about 7 to about 12; heating above about the polymer glass transition temperature thereby enabling the severage, or breakage of the formed aggregated particles; further heating above about the polymer glass transition temperature enabling the coalescence of the polymer and conductive component particles; and optionally washing and drying the resulting coalesced product.Type: GrantFiled: July 19, 1996Date of Patent: April 28, 1998Assignee: Xerox CorporationInventors: Grazyna E. Kmiecik-Lawrynowicz, Richard P. N. Veregin, Raj D. Patel, Michael A. Hopper, Maria V. McDougall
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Patent number: 5728766Abstract: Compounds having improved properties of processability and elasticity after heat aging for molded and extruded rubber parts can be prepared by utilizing improved processability EPM and/or EPDM rubber with effective amounts of carbon black prepared in a manner such that it has an average particle size of from 70 to 120 nanometers, a particle size distribution including from 40 to 225 nanometers sized particles, a surface area of 16 to 30 m.sup.2 /g as measured by the BET adsorption, and a structure of 90 to 125 as measured by DBP absorption. The EPM and EPDM rubber useful in accordance with the invention will include those multimodal polymer blends that comprise at least two fractions having different molecular weight and, optionally, monomer composition. The invention compounds find particular use in automotive industry parts requiring high temperature tolerance, such as coolant hoses.Type: GrantFiled: January 9, 1995Date of Patent: March 17, 1998Assignee: Exxon Chemical Co.Inventors: Jean-Roch Hector Schauder, Timothy Arthur Mills
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Patent number: 5725650Abstract: A treated carbon black may be produced by treating carbon black with at least one polyethylene glycol having a molecular weight of from about 1,000 to about 1,000,000. The treated carbon black may be used in forming polymeric compositions, such as semi-conductive and insulating compounds, for example for use in electrical cables.Type: GrantFiled: July 20, 1995Date of Patent: March 10, 1998Assignee: Cabot CorporationInventors: Cindy L. Flenniken, Jameel Menashi, Robert S. Whitehouse
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Patent number: 5726238Abstract: A material composed of carbon compounds may be shaped into high-quality moulded bodies, foils, plates, pipes or the like by all usual plastics processing machines, and may further be reused several times with no perceptible loss of quality. Above all, it may be disposed of by incineration with a high calorific value without fouling the incineration plants or polluting the atmosphere with toxic, harmful substances in an inadmissible manner.Type: GrantFiled: March 26, 1996Date of Patent: March 10, 1998Assignee: Citadel Investments LimitedInventor: Klaus-Dietrich Nickel
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Patent number: 5708055Abstract: What is disclosed is an improved thermoplastic composition for use in wire and cable manufacturing processes, which features the use of from about 15 to 45 percentage by weight of a modified furnace carbon black having a specific surface area of from about 35 to 250 m.sup.2 /g, preferably 35 to 60 m.sup.2 /g, as measured by the nitrogen adsorption surface area method. The modified carbon black is prepared by combining the carbon black with a specified amount of amine, under certain conditions, and heating the reactive mixture for an extended period.Type: GrantFiled: February 16, 1996Date of Patent: January 13, 1998Assignee: Columbian Chemicals CompanyInventors: George Alfred Joyce, Edward Lester Little
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Patent number: 5703144Abstract: Furfuryl alcohol-formaldehyde resins in solid form.Type: GrantFiled: March 1, 1996Date of Patent: December 30, 1997Assignee: QO Chemicals, Inc.Inventor: Denis W. Akerberg
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Patent number: 5679728Abstract: A rubber composition containing a cross-linkable rubber component and a carbon black having silica adhered to the surface thereof and a silica surface-treated carbon black suitable for use in tire tread where the surface-treated carbon black has a nitrogen specific surface area (N.sub.2 SA) of 20 to 300 m.sup.2 /g, a ratio IA.sub.o /IA.sub.f of the adsorption amount of iodine (IA.sub.o) and the adsorption amount of iodine after treatment by hydrogen fluoride (IA.sub.f) of at least 0.30 but less than 1.0, and a ratio IA.sub.e /IA.sub.ef of the adsorption amount of iodine after extraction from a rubber compound (IA.sub.e) and the value of the same after treatment by hydrogen fluoride (IA.sub.ef) of at least 0.30 but less than 1.0.Type: GrantFiled: November 2, 1995Date of Patent: October 21, 1997Assignee: The Yokohama Rubber Co., Ltd.Inventors: Tetsuji Kawazura, Hiroyuki Kaido, Kouichi Ikai, Fumito Yatsuyanagi, Masayuki Kawazoe
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Patent number: 5677372Abstract: An improved adhesion or bonding between diamond fibers and a matrix of at least one organic polymer such as a resin is achieved in a composite material reinforced with vapor-deposited diamond. To improve bonding to the matrix, hydrogen is removed from the surface of vapor-deposited diamond fiber. This can be achieved by heating the diamond under an oxidative atmosphere at a temperature of about 150.degree. C. to about 800.degree. C., or under a non-oxidative atmosphere at a temperature of about 800.degree. C. to about 1500.degree. C. The surface of the vapor-deposited diamond, which contains not more than about 1.times.10.sup.15 /cm.sup.2 of hydrogen atoms, is bonded to the matrix of resin for example with sufficient strength. To further improve bonding, diamond doped with B or N is employed as the reinforcing material or at least a surface layer thereof.Type: GrantFiled: December 8, 1995Date of Patent: October 14, 1997Assignee: Sumitomo Electric Industries, Ltd.Inventors: Yoshiyuki Yamamoto, Takahiro Imai, Takashi Tsuno, Naoji Fujimori
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Patent number: 5654395Abstract: This invention relates to a method of preparing a reinforced polyester composition comprising the steps of:I. mixing(a) at least one cyclic ester oligomer selected from the group consisting of ethylene terephthalate and cyclohexylenedimethylene terephthalate,(b) an organic initiator comprising one to five hydroxy groups which are capable of opening the cyclic ester rings,(c) a catalyst, and(d) a reinforcing material,II. heating the mixture of I at a temperature ranging from 270.degree. C. to 320.degree. C.Type: GrantFiled: May 3, 1991Date of Patent: August 5, 1997Assignee: Eastman Chemical CompanyInventors: Winston Jerome Jackson, Jr., William Ronald Darnell
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Patent number: 5639807Abstract: Carbon fiber pellets having improved flow characteristics are prepared by mixing chopped or milled carbon fibers with a solution or suspension of a sizing agent, shaping the agglomerated mixture on a tilted rotating surface to provide dense pellets of streamlined shape and drying the pellets. The carbon fiber pellets are especially suitable for use in the manufacture of reinforced thermoplastic resins.Type: GrantFiled: August 5, 1994Date of Patent: June 17, 1997Assignee: Akzo Nobel nvInventors: Duane R. Secrist, William M. Jenkins
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Patent number: 5614570Abstract: A method of producing easily densified high bulk fibers that have adhered particulates. The fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.Type: GrantFiled: April 4, 1995Date of Patent: March 25, 1997Assignee: Weyerhaeuser CompanyInventors: Michael R. Hansen, Richard H. Young, Sr.
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Patent number: 5610237Abstract: A functionalized polymer according to the invention includes a polymer molecule having the general formula AYLi where A is a cyclic amine-containing radical having the general formula ##STR1## wherein R.sub.1 is a divalent alkylene, an oxy- or amino-alkylene, or substituted alkylene having from 6 to about 20 carbon atoms; R.sub.2 is a linear-, branched-, or cyclo-alkylene having from about 2 to about 20 carbon atoms; and Y is a divalent polymer radical and Li is a lithium atom bonded to a carbon atom of Y.Type: GrantFiled: June 4, 1996Date of Patent: March 11, 1997Assignee: Bridgestone CorporationInventors: David F. Lawson, Thomas A. Antkowiak, James E. Hall, Mark L. Stayer, Jr., John R. Schreffler
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Patent number: 5604289Abstract: Thermoplastic material comprising at least one thermoplastic polymer and 1 to 1000 ppm (by weight) of at least one substance which substantially absorbs infrared radiation, such as carbon black. The reinforcement-fibre bundles impregnated with a thermoplastic polymer, in accordance with the invention, are particularly advantageous for reinforcing pipes by filament winding.Type: GrantFiled: February 15, 1995Date of Patent: February 18, 1997Assignee: Solvay (Societe Anonyme)Inventor: Didier Delimoy
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Patent number: 5571852Abstract: Disclosed are structures comprising a composite of fluorinated particulate carbon dispersed in a polymer, the fluorinated carbon being present in an amount sufficient to reduce the dielectric constant of the composition, the structure also including electrical conductor patterns.The composite can be made conductive by irradiating it with an UV excimer laser.Type: GrantFiled: June 7, 1995Date of Patent: November 5, 1996Assignee: International Business Machines CorporationInventors: Ali Afzali-Ardakani, Juan Ayala-Esquilin, Bodil E. Braren, Shahrokh Daijavad, Elizabeth Foster, James L. Hedrick, Jr., Jeffrey C. Hedrick, Rodney T. Hodgson, Ashit A. Mehta, Steven E. Molis, Jane M. Shaw, Stephen L. Tisdale, Alfred Viehbeck
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Patent number: 5559169Abstract: A rubber composition prepared by the process comprising mixing 100 parts by weight of a rubber selected from EPDM, HNBR, and butyl rubber, and 10 to 300 parts by weight of a carbon black product having an attached organic group. The organic group has the formula --Ar--S.sub.n --Ar'-- in which Ar and Ar' are arylene groups or --Ar--S.sub.n --Ar" in which Ar is an arylene group, Ar" is an aryl group and n is 1 to 8.Type: GrantFiled: December 15, 1994Date of Patent: September 24, 1996Assignee: Cabot CorporationInventors: James A. Belmont, Thomas F. Reed
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Patent number: 5556899Abstract: Disclosed is a process of effecting a change in the dielectric constant and coefficient of thermal expansion of a polyimide material, by forming a composite based on a dispersion of 2-60 wt. % of fluorinated particulate carbon material and a polyimide or polyimide precursor, and heating the dispersion to about 400.degree. C. at 65.degree.-200.degree. C./second.Type: GrantFiled: November 30, 1994Date of Patent: September 17, 1996Assignee: International Business Machines CorporationInventors: Ali Afzali-Ardakani, Juan Ayala-Esquilin, Bodil E. Braren, Shahrokh Daijavad, Elizabeth Foster, James L. Hedrick, Jr., Jeffrey C. Hedrick, Rodney T. Hodgson, Ashit A. Mehta, Steven E. Molis, Jane M. Shaw, Stephen L. Tisdale, Alfred Viehbeck
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Patent number: 5504137Abstract: The present invention relates to a rubber composition containing silica reinforcement and to pneumatic tires having treads comprised of such rubber composition.A rubber composition comprises at least one elastomer, silica, carbon black and a silica coupler comprised of nicotinamide.Type: GrantFiled: March 10, 1995Date of Patent: April 2, 1996Assignee: The Goodyear Tire & Rubber CompanyInventors: Paul H. Sandstrom, Lawson G. Wideman
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Patent number: 5458973Abstract: A granular filler comprising a particulate inorganic material; from 0.1% to 10% by weight, based on the weight of the organic material, of fine carbon black; and sufficient amount of a natural or synthetic latex composition to provide from 1% to 10% by weight of elastomer solids, based on the weight of the inorganic material, wherein the granules have diameters within the range of from 0.01 mm to 0.1 mm.Type: GrantFiled: April 29, 1994Date of Patent: October 17, 1995Assignee: ECC International Ltd.Inventor: David G. Jeffs
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Patent number: 5447977Abstract: A method of producing easily densified high bulk fibers that have adhered particulates. The fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers. A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.Type: GrantFiled: November 15, 1993Date of Patent: September 5, 1995Assignee: Weyerhaeuser CompanyInventors: Michael R. Hansen, Richard H. Young, Sr.
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Patent number: 5416156Abstract: A surface coating composition comprising, in combination, a fibrillated polymer matrix, at least one pigment, at least one binder, and at least one solvent, and a method for the manufacture thereof.Type: GrantFiled: December 20, 1993Date of Patent: May 16, 1995Assignee: Revlon Consumer Products CorporationInventor: Melvin E. Kamen
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Patent number: 5401574Abstract: A sliding member comprising a fluorine resin and carbon fibers treated with a fluorine-containing silane modifying agent represented by the formula R.sup.1 -SiX.sub.3 wherein R.sup.1 represents an alkyl group having from 1 to 10 carbon atoms, a part or the whole of the hydrogen atoms of which are replaced with fluorine atoms and X represents a hydrolyzable group or a chlorine atom.Type: GrantFiled: August 12, 1994Date of Patent: March 28, 1995Assignee: Nitto Denko CorporationInventors: Noboru Masutani, Junichi Nakazono
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Patent number: 5397807Abstract: Disclosed is a compatibilized carbon black useful in melt processing of plastic material. The carbon black is coated with a compatibilizing agent which enhances the dispersibility of the carbon black in a melt of the plastic material. Further disclosed are processes for making plastic foam structures with the compatibilized carbon black.Type: GrantFiled: May 27, 1994Date of Patent: March 14, 1995Assignee: The Dow Chemical CompanyInventors: Martin K. Hitchcock, Kyung W. Suh, Arnold M. Bartz, Andrew N. Paquet, William G. Stobby
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Patent number: 5369146Abstract: A sizing formulation adapted for use with carbon fiber yarn comprising an aqueous dispersion of a film-forming, heat-reactive resin having a Tg below about -50.degree. C. and a water-dispersible ethoxylated alkyl phenol provides yarn having improved resistance to abrasion, less breakage and low fuzz formation, permitting substantial handling of the fiber in fabrication and weaving operations with reduced losses. In addition, the sizing may be readily removed thermally without the production of noxious byproducts when deemed necessary for use in further processing and impregnation operations.Type: GrantFiled: September 28, 1993Date of Patent: November 29, 1994Assignee: Amoco CorporationInventors: James D. Miller, Chris D. Levan
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Patent number: 5369143Abstract: Inorganic fiber such as carbon fiber is modified by a surface treatment with a dinitrodiamine compound represented by the formula of ##STR1## wherein X is a divalent aliphatic, alicyclic or aromatic group which may contain halogen or oxygen in the group, R.sup.1 is hydrogen, an aliphatic group, an alicyclic group or an aromatic group, with the proviso that two nitrogen atoms linking through X may further link through R.sup.1 when both X and R.sup.1 are the aliphatic groups, and R.sup.2 and R.sup.3 independently of one another are each hydrogen or an alkyl of 1 to 12 carbon atoms, with the proviso that R.sup.2 and R.sup.3 may conjointly form a ring. The inorganic fiber thus modified is useful for reinforcement of resins.Type: GrantFiled: August 31, 1993Date of Patent: November 29, 1994Assignee: Sumitomo Chemical Company, LimitedInventors: Isao Kurimoto, Naoki Inui, Kohji Yamatsuta, Hitoshi Murotani, Hideo Nagasaki, Shinichi Yachigo
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Patent number: 5362482Abstract: A water-in-oil type emulsified solid composition containing (a) an oil component such as a silicone oil, (b) a solid wax and/or an oil-gelling agent, (c) water, and (d) (i) a polyoxyalkylene modified organopolysiloxane or (ii) a lipophilic surfactant and a hydrophobically treated powder, wherein the water content is 5% by weight or more, based upon the total amount of the composition.Type: GrantFiled: February 10, 1993Date of Patent: November 8, 1994Assignee: Shiseido Company Ltd.Inventors: Toshio Yoneyama, Yasuo Matsuoka, Harumi Suzuki, Shigenori Kumagai, Susumu Takada
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Patent number: 5338789Abstract: A fiber-reinforced molding composition, comprising:a) 97 to 50% by weight, relative to the sum of (a) and (b), of a mixture of 30 to 100 parts by weight of a polyphenylene ether, 0 to 70 parts by weight of a styrene polymer, 0 to 10 parts by weight of a polyoctenylene and 0.1 to 2.5 parts by weight of an .alpha.,.beta.-unsaturated carboxylic acid derivative or a precursor thereof;b) 3 to 50% by weight of carbon fibers and/or glass fibers whose surfaces bear functional groups which are capable of entering into chemical coupling reactions with the .alpha.,.beta.-unsaturated carboxylic acid derivatives; and optionallyc) dyes, pigments, plasticizers, flame retardant additives, processing auxiliaries, other customary additives or combinations thereof.Type: GrantFiled: April 9, 1992Date of Patent: August 16, 1994Assignee: Huels AktiengesellschaftInventors: Thomas Grosse-Puppendahl, Christian Baron, Friedrich G. Schmidt
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Patent number: 5321071Abstract: The present invention provides a short-fiber containing composition inhibited from electrostatic charging and having practical insulating properties. This composition has a volume resistivity of 10.sup.5 -10.sup.13 .OMEGA.cm and comprises 10-40 parts by weight of at least one kind of short fibers having a volume resistivity of 10.sup.-1 -10.sup.3 .OMEGA.cm and 90-60 parts by weight of a polymer or comprises 10-40 parts by weight of a mixture comprising at least one kind of short fibers having a volume resistivity of less than 10.sup.-1 .OMEGA.cm and at least one kind of short fibers having a volume resistivity of 10.sup.-1 .OMEGA.cm or more and 90-60 parts by weight of a polymer. A method for controlling the polymer composition to 10.sup.5 -10.sup.13 .OMEGA.cm in volume resistivity is also provided.Type: GrantFiled: October 27, 1992Date of Patent: June 14, 1994Assignees: Nitto Boseki Co., Ltd., Kawasaki Steel Corporation, Mitsubishi Gas Chemical Company, Inc.Inventors: Eiji Fujisawa, Yasunobu Isobe, Hiroaki Shono
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Patent number: 5308896Abstract: A method of producing easily densified high bulk fibers that have adhered particulates. The fibers have hydrogen bonding or coordinate covalent bonding functionalities, and a binder is applied to the fibers to bind the particles to the fibers. The binder has a functional group that forms a hydrogen bond or a coordinate covalent bond with the particles, and a functional group that forms a hydrogen bond with the fibers A substantial portion of the particles that are adhered to the fibers are adhered in particulate form by hydrogen bonds or coordinate covalent bonds to the binder, and the binder is in turn adhered to the fibers by hydrogen bonds. Fibers containing particles bound by this method are easily densified.Type: GrantFiled: August 17, 1992Date of Patent: May 3, 1994Assignee: Weyerhaeuser CompanyInventors: Michael R. Hansen, Richard H. Young, Sr.
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Patent number: 5290821Abstract: An electro-responsive elastomeric material comprising (A) an electrically insulating polymer having a specific modulus of elasticity and (B) a fine powder dispersed in the polymer which electrically polarizes under an electric field independent of water changes its viscoelasticity upon voltage application. The powder has a mean particle size of 0.5 to 500 .mu.m and is (1) a fine carbonaceous powder having a C/H atomic ratio of from 1.2 to 5, (2) composite particles having minute particulates of an insulating material dispersed in a matrix phase of a carbonaceous or carbide material, (3) composite particles having minute particulates of a carbonaceous or carbide material dispersed in a matrix phase of an insulating material, or (4) a fine composite powder of a stratum clay mineral having a two-dimensional stratum structure with a carbonaceous or carbide material incorporated between the strata.Type: GrantFiled: October 28, 1992Date of Patent: March 1, 1994Assignee: Bridgestone CorporationInventors: Ryo Sakurai, Yasuo Kurachi, Yoshiki Fukuyama, Takayuki Maruyama, Tasuku Saito
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Patent number: 5238542Abstract: Cyclic (and preferably aromatic) N-substituted methacrylamide monomers are electropolymerized onto electrically conductive (e.g., graphite) filler (e.g., fibers, plates, film or cloth) to form a novel polymer composite exhibiting high Tg as well as a controlled degree of cross-linking which can prevent flow at high temperature.Type: GrantFiled: September 18, 1992Date of Patent: August 24, 1993Assignees: The University of Connecticut, United Technologies CorporationInventors: James P. Bell, Daniel A. Scola, Jengli Liang
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Patent number: 5232560Abstract: In accordance with the present invention, electropolymerization in a substantially aqueous solution is used to form thick (e.g. greater than 2 microns or 30 weight %) and thermally stable coatings of thermoplastic materials onto electrically conductive filler materials (e.g. rods, plates, fibers). In a preferred embodiment, the thick thermoplastic matrix comprises a copolymer of 3-carboxyphenyl maleimide and styrene. This invention is particularly well suited for direct preparation of thermoplastic prepregs containing commercially available bundles of graphite fibers. These prepregs are then molded under heat and pressure so as to form a thermoplastic matrix composite with good fiber distribution, uniformity and high temperature resistance.Type: GrantFiled: June 12, 1992Date of Patent: August 3, 1993Inventors: James P. Bell, Jude O. Iroh, D. Scola
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Patent number: 5223556Abstract: Resin compositions having excellent mechanical strength, especially at high temperatures are disclosed. The resin compositions comprise 95-60 wt. % of an aromatic polyetherketone having recurring units represented by the following formula: ##STR1## 5-40 wt. % of a polyetherimide having recurring units represented by the following formula: ##STR2## Also disclosed are fiber-reinforced resins, which comprise 75-55 wt. % of one of the above compositions and 25-45 wt. % of carbon fibers obtained by coating starting carbon fibers with an aromatic polysulfone resin and then heating the thus-coated carbon fibers at 300.degree.-400.degree. C., and mechanical components made of desired one of the fiber-reinforced resins which are suitable for use in internal combustion engines or auxiliary equipment.Type: GrantFiled: September 22, 1992Date of Patent: June 29, 1993Assignees: Mitsui Toatsu Chemicals, Incorporated, Nissan Motor Co., Ltd.Inventors: Yoshihisa Gotoh, Toshihiko Tsutsumi, Toshiaki Takahashi, Takatoshi Sagawa
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Patent number: 5218012Abstract: The present invention relates to a process for coating reinforcing elements preferably in fiber form, wherein said material is treated, between two electrodes, by the field obtained by means of a direct electric current of voltage included between 50 and 150,000 V and/or by means of an alternating electric current of frequency between 50 and 1,000 Hz and of voltage included between 10,000 and 30,000 V, and said element is placed in contact with a powder of a conductive or semi-conductive material.Type: GrantFiled: November 15, 1990Date of Patent: June 8, 1993Assignee: Pradom LimitedInventor: Michel Berger
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Patent number: 5212222Abstract: Melt-stable polyacetal molding compositions include a polyacetal base resin, and a carbon black-impregnated ethylenic carrier polymer in amounts to yield between about 0.1 to 30 parts by weight of carbon black. The ethylenic carrier polymer is preferably present in an amount between 0.3 to 8 times by weight of the carbon black impregnated therewithin. The compositions of this invention further contain a co-stabilization package which includes a first stabilizer selected from nitrogen-containing compounds, fatty acid ester compounds, and metal-containing compounds which contain a hydroxide, an inorganic acid salt or a carboxylic acid salt of an alkali metal or an alkaline earth metal, and a second stabilizer which is a hindered phenolic compound. Preferably, the first and second stabilizers are each used in amounts between 0.01 to 5 parts by weight, based on 100 parts by weight of the polyacetal base resin.Type: GrantFiled: January 29, 1992Date of Patent: May 18, 1993Assignee: Polyplastics Co., Ltd.Inventors: Masamichi Mitsuuchi, Tsuyoshi Minamisawa, Hiroshi Kitamura, Hideo Kakizaki
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Patent number: 5140071Abstract: A sizing agent for carbon fibers and glass fibers is based on an aqueous dispersion containing an epoxy resin and from 5 to 40% by weight, based on the epoxy resin, of a nonionic emulsifier containing teritary amino groups and/or ether linkages and at least one functional radical capable of reaction with the epoxy resin, preferably a glycidyl radical, and also at least one emulsifying radical which preferably carries a polyethylene glycol group in the terminal position.Type: GrantFiled: December 19, 1990Date of Patent: August 18, 1992Assignee: BASF AktiengesellschaftInventors: Joerg Kroker, Silvio Vargiu
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Patent number: 5124372Abstract: A non-sag agent useful in providing non-sag properties to many conventional curable, polymeric adhesives and sealants, said agent comprising:a first component comprising crush resistant coated particles wherein the first component particles are less than about 1 and 1/2 microns in size and have a coating of about 0.1% to about 10% by weight of the particle and wherein said coating substantially comprises a first surface modifying agent,a second component comprising crush resistant coated particles wherein the second component particles are about 1 and 1/2 to about 3 microns in size and have a coating of about 0.Type: GrantFiled: November 15, 1990Date of Patent: June 23, 1992Assignee: Tremco IncorporatedInventors: Annette F. Katona, Steve L. Hannah
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Patent number: 5093389Abstract: A room temperature-curable composition comprising (A) a silanol-terminated polydiorganosiloxane having a viscosity measured at 25.degree. C. of from 100 to 200,000 cSt, (B) an epoxy-terminated polyether, (C) an organosilicon compound, (D) an inorganic filler, and (E) a curing catalyst. The composition is suitably used as a building sealant which causes no fouling of the areas surrounding joints even after applied to the joints.Type: GrantFiled: March 12, 1990Date of Patent: March 3, 1992Assignee: Toshiba Silicone Co., Ltd.Inventor: Chiyuki Shimizu
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Patent number: 5071891Abstract: A coating composition for a particulate filler comprising an organic oligomer containing a plurality of oxy groups, less than 15% of which are comprised in hydroxy groups, organic oligomer components thereof, fillers coated with the coating compositions, organic polymer matrices filled with a dispersion of the coated filler, and processes for the preparation of the oligomer components, the coating compositions, the coated fillers and the filled matrices, and precursors of the coating compositions.Type: GrantFiled: July 5, 1990Date of Patent: December 10, 1991Assignee: Imperial Chemical Industrial PLCInventors: David L. Harrison, Louis P. Bates
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Patent number: 5001171Abstract: It now has been found that uncured modified rubber compositions comprising mixtures of elastomers and a reinforcing filler can be prepared having improved properties.Type: GrantFiled: October 21, 1988Date of Patent: March 19, 1991Assignee: Bridgestone/Firestone, Inc.Inventors: Georg G. Bohm, Daniel F. Graves
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Patent number: 4940749Abstract: A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon balck. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transer, coating gent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.Type: GrantFiled: June 29, 1989Date of Patent: July 10, 1990Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Masuji Izubayashi, Shigeru Tanimori, Yoshihiro Arita, Kiyoshi Kawamura, Kenji Minami, Yoshinori Sano
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Patent number: 4918117Abstract: Polymer composites reinforced with carbon fibers coated with polybutadiyne and the coated fibers are described. The polybutadiyne coating is formed in a closely adherent film on or slightly below the surface of carbon fibers by substantially simultaneously vapor depositing and polymerizing butadiyne on the fiber.Type: GrantFiled: October 12, 1988Date of Patent: April 17, 1990Assignee: The United States of America as represented by the Secretary of the NavyInventors: Arthur Snow, James P. Armistead
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Patent number: 4902730Abstract: Improved fiber reinforcement of polyarylene sulphides is achieved by preparing the polyarylene sulphides in the presence of reinforcing fibers pretreated with arylsulphonic acid chlorides at elevated temperatures.Type: GrantFiled: August 15, 1988Date of Patent: February 20, 1990Assignee: Bayer AktiengesellschaftInventors: Karl-Heinz Reichert, Ingo Koschinski
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Patent number: 4895785Abstract: A toner particle composition substantially spherical in form and comprising binder resin and carbon black dispersed thereon, the surface area of the particle being covered with the carbon black in an amount not greater than 25 percent of the entire surface area of the toner particle.Type: GrantFiled: January 3, 1989Date of Patent: January 23, 1990Assignee: Kao CorporationInventors: Yoshiaki Torimoto, Yoshitsugu Shirasaki
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Patent number: 4882370Abstract: A fiber reinforced composite structure having a glass transition temperature greater than 150.degree. C. is comprised of:a) reinforcing fiber andb) a curable epoxy resin composition comprising(i) one or more epoxides having more than one epoxide group per molecule, of which epoxides at least 10 percent by weight is a 9,9-bis[4-(2,3-epoxypropoxy)phenyl]fluorene, all of the fluorene epoxy present being free of ortho substitution;(ii) an effective amount of one or more epoxy curing agents.Type: GrantFiled: January 27, 1988Date of Patent: November 21, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert C. Jordan, Gene B. Portelli
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Patent number: 4880857Abstract: A carbon black-graft polymer, produced by causing a polymer possessing within the molecular unit thereof at least one reactive group selected from the class consisting of aziridine group, oxazoline group. N-hydroxyalkylamide group, epoxy group, and thioepoxy group to react with carbon black. The polymer can be used as a toner for electrostatically charged image, resin composition, coating composition, ink for thermographic transer, coating gent for magnetic recording medium, rubber composition, and carbon black dispersion and the like.Type: GrantFiled: December 16, 1987Date of Patent: November 14, 1989Assignee: Nippon Shokubai Kagaku Kogyo Co., Ltd.Inventors: Yoshikuni Mori, Mitsuo Kushino, Hayato Ikeda, Nobuaki Urashima, Masuji Izubayashi, Shigeru Tanimori, Yoshihiro Arita, Kiyoshi Kawamura, Kenji Minami, Yoshinori Sano
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Patent number: 4861809Abstract: A friction material containing from about 0.5-29 wt % of carbonaceous fibers with a bond nitrogen content of from about 14 to 21 wt %, an auxiliary material and a thermosetting resin. The material has good wear and temperature resistance characteristics and can be used in power transmissions and brakes.Type: GrantFiled: May 27, 1988Date of Patent: August 29, 1989Assignee: Toho Rayon Co., Ltd.Inventors: Hiroyasu Ogawa, Kenji Shimazaki, Kenji Niijima
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Patent number: 4857385Abstract: A coating of a viscous lubricant applied prior to stretch-breaking permits forming slivers of stretch-broken carbon fibers. When an anti-static ingredient is added to the viscous lubricant cohesive slivers of stretch-broken glass fibers can be formed. composites of matrix resin reinforced with these slivers exhibit high strength, tensile stiffness, and good formability.Type: GrantFiled: June 10, 1988Date of Patent: August 15, 1989Assignee: E. I. Du Pont De Nemours and CompanyInventors: Thomas E. Armiger, David H. Edison, Herbert G. Lauterbach, James R. Layton, Richard K. Okine
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Patent number: 4847145Abstract: Disclosed is a film for keeping freshness of vegetables and fruit which has an ethylene-adsorptive activity. The film preferably contains a fine-porous material. According to the film, the ethylene gas evolved from vegetables and fruit can be very effectively removed and thus freshness of vegetables and fruit can be maintained.Type: GrantFiled: July 17, 1987Date of Patent: July 11, 1989Inventor: Mitsuo Matsui
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Patent number: 4820751Abstract: A rubber composition for tires having improved heat build-up and high temperature reinforcibility comprises specified amounts of particular surface-treated carbon black, silica and particular silane coupling agent based on 100 parts by weight of rubber ingredient.Type: GrantFiled: April 25, 1988Date of Patent: April 11, 1989Assignee: Bridgestone CorporationInventors: Michitaka Takeshita, Uchu Mukai, Toshio Sugawara
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Patent number: 4801445Abstract: A modified powder or particulate material having a silicone polymer film coated on substantially the entire surface thereof, this powder or particulate material being produced by bringing at least one silicone compound, in the form of a vapor, having the general formula (I):(R.sup.1 HSiO).sub.a (R.sup.2 R.sup.3 SiO).sub.b (R.sup.4 R.sup.5 R.sup.6 SiO.sub.1/2).sub.c (I)wherein R.sup.1, R.sup.2, and R.sup.3 represent, independently, hydrogen or a hydrocarbon residue having 1 to 10 carbon atoms, which may be substituted with at least one halogen atom, provided that R.sup.1, R.sup.2, and R.sup.3 are not hydrogen at the same time, R.sup.4, R.sup.5, and R.sup.Type: GrantFiled: June 17, 1986Date of Patent: January 31, 1989Assignee: Shiseido Company Ltd.Inventors: Hiroshi Fukui, Ryujiro Namba, Tsutomu Saito, Yutaka Ohtsu, Asa Kimura, Motokiyo Nakano, Okitsugu Nakata, Kenichi Tomita, Kazuo Tokubo, Kazuhisa Ohno, Toshio Yoneyama, Takashi Ogawa, Hideo Morohoshi, Junichi Koyama, Taketoshi Kanda, Kunihiro Kawaguchi, Yuzo Shimizu