Boron Atom Dnrm Patents (Class 524/404)
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Publication number: 20090054576Abstract: Disclosed are an intermediate transfer belt for use in a laser printer, a fax machine and a copier, and a production method thereof. Specifically, an intermediate transfer belt including silicone modified polyimide resin and a production method thereof are provided, thereby realizing a monolayer intermediate transfer belt having excellent electrical properties, water repellency and heat dissipation properties and good mechanical strength. Further, even without the additional use of an adhesive layer for adhesion to a fluorine resin layer and fluorine resin, the intermediate transfer belt can exhibit satisfactory properties, and process efficiency can be maximized.Type: ApplicationFiled: January 3, 2007Publication date: February 26, 2009Applicant: KOLON INDUSTRIES, INC.Inventors: Hyo Jun Park, Chae Hyun Lim, Chung Seock Kang, Sang Min Song
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Patent number: 7493927Abstract: The present invention provides a rubber composition, in which reaction efficiency of the silane coupling agent in kneading is improved, generation of bubbles is suppressed, abrasion resistance is improved and rolling resistance is reduced. Specifically, the rubber composition comprises silica and 3 to 15 parts by weight of a silane coupling agent and 1.5 to 15 parts by weight of a potassium salt based on 100 parts by weight of the silica.Type: GrantFiled: January 26, 2005Date of Patent: February 24, 2009Assignee: Sumitomo Rubber Industries, Ltd.Inventors: Yasuhisa Minagawa, Noriko Yagi
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Patent number: 7491751Abstract: A method for processing polyester wastes, especially used polyester bottles, which comprises shredding, washing, drying and melting the waste mixture to obtain a starting raw material wherein a modifying agent selected from the group comprising a combination of polysiloxane and a plasticizer selected from the group of phthalates, or a combination of silazanes and silanes is added to the shredded and dried waste mixture, the amount of the modifying agent being 4 to 6% by weight, based on the waste mixture.Type: GrantFiled: October 16, 2002Date of Patent: February 17, 2009Assignee: PTP Plastic Technologies and Products B.V.Inventors: Viktor Bulgakov, Levan Dadiani, George Javakhishvili
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Publication number: 20090043026Abstract: The object of the present invention is to provide a polyarylene sulfide composition having excellent thermal conductivity, dimensional stability, heat resistance and low gas property, which is particularly useful to applications of electric parts such as electric and/or electronic parts or automobile electric parts. The present invention relates to a polyarylene sulfide composition comprising a polyarylene sulfide (a), a metal silicon powder (b), a fibrous filler (c), and preferably a release agent (d) and at least one thermally conductive filler (e) selected from the group consisting of a scale-like boron nitride powder (e1) having a hexagonal structure, a coated magnesium oxide powder (e2) coated with a complex oxide of silicon and magnesium and/or a complex oxide of aluminum and magnesium, a high purity magnesite powder (e3) which is a magnesite comprising magnesium carbonate as a main component and has a magnesium carbonate content of from 98 to 99.999% by weight, and graphite (e4).Type: ApplicationFiled: November 1, 2006Publication date: February 12, 2009Applicant: TOSOH CORPORATIONInventors: Yasumi Tanaka, Toshihiko Muneto
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Publication number: 20090029121Abstract: The present invention relates to a process for the identification-marking of plastics parts.Type: ApplicationFiled: February 6, 2007Publication date: January 29, 2009Applicant: BASF SEInventors: Markus Hammermann, Gero Nordmann, Ralf Neuhaus, Nobert Wagner, Claudia Sierakowski, Arno Bohn, Frank Prissok
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Publication number: 20090020311Abstract: Disclosed are a composition for a cable-covering material used in railway vehicles, and a cable for railway vehicles using the same. The present invention provides the halogen-free flame retardant composition including 100 parts by weight of a base resin including ethylene-vinylacetate copolymers; 60 to 250 parts by weight of mixed metal hydroxide as a halogen-free flame; 1 to 30 parts by weight of a flame-retardance auxiliary; 0.5 to 5 parts by weight of a silane-based coupling agent; 0.5 to 8 parts by weight of a cross-linking formulation; and 3 to 15 parts by weight of a cross-linking agent. The composition according to the present invention may be used in the cable-covering material for railway vehicles under the extreme conditions because it has excellent properties such as resistance against dynamic pressure at high temperature and durability, as well as low smoke and flame retardance upon its combustion.Type: ApplicationFiled: June 17, 2005Publication date: January 22, 2009Applicant: LS CABLE LTD.Inventors: Do-Hyun Park, Il-Gun Seo
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Publication number: 20090017195Abstract: An encapsulant for encapsulating electronic components and a method of making and/or using the encapsulant may be provided. An electronic device that includes the encapsulant may be provided. The curable encapsulant composition may include a mixture of a functionalized polymer and at least one reactive monomer composition. The reactive monomer composition may include a reactive monomer component that may be a low temperature solid and may be present in an amount in the reactive monomer composition a range of greater than about 20 weight percent based on the total weight of reactive monomer composition.Type: ApplicationFiled: October 23, 2007Publication date: January 15, 2009Inventors: Michael Alan Vallance, John Robert Campbell, Kenneth Paul Zarnoch, Prameela Susarla, Bryan Patrick Duffey, Gary William Yeager, Michael Joseph O'Brien
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Publication number: 20090018246Abstract: A stabilizer or a dispersant from the group of the polycarboxylates for the preparation of stable aqueous dispersions of particles.Type: ApplicationFiled: September 4, 2008Publication date: January 15, 2009Applicants: Sika Technology AG, Graphit Kropfmuhl AGInventors: Norman Blank, Urs Mader, Werner Handl
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Publication number: 20090018241Abstract: The present invention relates to a halogen-free phosphorous epoxy resin composition, primarily used as an adhesive for the printed circuit board. The composition comprises a halogen-free phosphorous contained epoxy resin which reduces the addition amount of additional flame retardant; in order to offer flame retardancy while maintaining high flexibility of flexible printed circuit board.Type: ApplicationFiled: February 22, 2007Publication date: January 15, 2009Inventors: Yu Hsain Cheng, We Ming Te
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Patent number: 7476702Abstract: A polymer composition having high thermal conductivity and dielectric strength is provided. The polymer composition comprises a base polymer matrix and a thermally-conductive, electrically-insulating material. A reinforcing material such as glass can be added to the composition. The polymer composition can be molded into packaging assemblies for electronic devices such as capacitors, transistors, and resistors.Type: GrantFiled: April 29, 2005Date of Patent: January 13, 2009Assignee: Cool Options, Inc.Inventors: E. Mikhail Sagal, Kevin A. McCullough, James D. Miller
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Publication number: 20090012222Abstract: A thermoplastic molding composition comprising A) 2.5 to 50 wt. % of a rubber modified styrenic resin; B) 50 to 97.5 wt. % of a polycarbonate resin; C) 0.001 to 1 wt. % of an inorganic boron compound; D) 0 to 25 wt. % of further polymer resins; and E) 0 to 45 wt. % additives, shows excellent thermal stability at high temperatures and impact resistance, and no thermal discolouration during processing.Type: ApplicationFiled: January 24, 2007Publication date: January 8, 2009Applicant: BASF SE Patents, Trademarks and LicensesInventors: Wil Duijzings, Davy Roger Suwier, Martin Weber, Michel Pepers
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Publication number: 20090012218Abstract: A transparent silicone pressure-sensitive adhesive composition that exhibits excellent antistatic performance, is able to maintain that excellent antistatic performance even when exposed to high temperatures for a long time, and suffers no deterioration in adhesive properties, as well as a silicone pressure-sensitive adhesive tape that uses the composition. The composition comprises: (A) a straight-chain diorganopolysiloxane, (B) a polyorganosiloxane comprising R13SiO0.5 units and SiO2 units, in which the molar ratio of R13SiO0.5 units/SiO2 units is within a range from 0.6 to 1.7 (wherein R1 represents a monovalent hydrocarbon group of 1 to 10 carbon atoms), and (C) an ion-conductive antistatic agent, wherein the quantity of the ion-conductive antistatic agent of the component (C) is within a range from 0.01 to 5 parts by mass per 100 parts by mass of a combination of the straight-chain diorganopolysiloxane of the component (A) and the polyorganosiloxane of the component (B).Type: ApplicationFiled: July 3, 2008Publication date: January 8, 2009Applicant: Shin-Etsu Chemical Co., Ltd.Inventor: Yasuyoshi KURODA
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Patent number: 7473735Abstract: The present invention provides a resin composition which comprises EVOH and a thermoplastic resin other than EVOH and which generates less odor and therefore is suitable for food packaging applications. The invention also provides an environmentally friendly method for producing a resin composition, without releasing any carboxylic acid such as acetic acid to the peripheral environment. A resin composition containing less carboxylate group is obtained by contacting an ethylene-vinyl alcohol copolymer resin with an aqueous solution containing both carbon dioxide gas and at least one additive selected from the group consisting of an alkali metal salt (A) and a boron compound (B) and then melt kneading with a thermoplastic resin (G) other than EVOH.Type: GrantFiled: July 22, 2004Date of Patent: January 6, 2009Assignee: Kuraray Co., Ltd.Inventors: Naohiko Uchiumi, Kaoru Ikeda, Noriyuki Kida, Tetsuya Hara, Syukiti Kawamura
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Patent number: 7473738Abstract: Lactam polymers has been modified with sodium borohydride (NaBH4) to yield lactam polymers bearing hydroxyl functional groups. These functional groups are useful for the covalent attachment of reactive groups, fluorescent probes, antimicrobial agents, bioactive factors, and drugs. The resulting as components for medical devices, specifically ophthalmic devices and more specifically contact lenses. Hydrogels based on these polymers are also useful for biomedical applications in the areas of drug delivery, tissue engineering, and implantable devices.Type: GrantFiled: September 30, 2004Date of Patent: January 6, 2009Assignee: Johnson & Johnson Vision Care, Inc.Inventors: Stephen C. Arnold, Walter R. Laredo
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Publication number: 20080292857Abstract: A heat dissipation material comprises (1) fluorine-containing crystalline polymer having a melting point higher than 150° C., with a weight percentage of around 15-40%; (2) heat conductive fillers dispersed in the fluorine-containing crystalline polymer with a weight percentage of around 60-85%; and (3) coupling agent of 0.5-3% of the heat conductive fillers by weight and having a chemical formula of: where R1, R2 and R3 are alkyl group CaH2a+1, a?1; X and Y are selected from hydrogen, fluorine, chorine, and alkyl group; and n is a positive integer.Type: ApplicationFiled: March 21, 2008Publication date: November 27, 2008Applicant: POLYTRONICS TECHNOLOGY CORPORATIONInventors: David Shau Chew Wang, Kuo Hsun Chen, En Tien Yang
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Patent number: 7456235Abstract: A flame-retardant composition is provided that includes at least one melamine compound, at least one metal borate, at least one alkaline metal hydroxide, and optionally hydrated alumina. The flame-retardant composition can be used in coating powder compositions that also include a resin. The flame retardant coating powder composition can be applied to a substrate, such as an electrical or electronic device, and heated to a temperature sufficient to effect crosslinking of the resin and the curing agent to provide a flame resistant coating composition.Type: GrantFiled: October 3, 2005Date of Patent: November 25, 2008Assignee: Henkel CorporationInventors: John E. Heschke, Tanweer Ahsan, Charles N. Volante, Charles S. Bischof
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Publication number: 20080287585Abstract: The present invention relates generally to the fields of chemistry and molecular biology. More particularly, the present invention relates to thermally-conductive compositions and reaction tubes for chemical- and biochemical-based analytical processing. Compositions and reaction tubes in accordance with the invention comprise at least one plastic and at least one compound having a higher thermal conductivity than the at least one plastic to result in compositions and tubes having increased thermal conductivity when compared to the at least one plastic alone. Such compositions and tubes are capable of facilitating rapid heat transfer in numerous heat transfer applications. The thermally-conductive compositions and reaction tubes are especially suitable for containing reaction constituents during thermal cycling of the polymerase chain reaction (PCR).Type: ApplicationFiled: May 14, 2007Publication date: November 20, 2008Inventor: Larry R. BROWN
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Publication number: 20080269386Abstract: A composition comprises a polyester-polycarbonate polymer comprising isophthalate-terephthalate-resorcinol ester units and carbonate units, a first polyester comprising repeating units derived from cyclohexane dicarboxylic acid or a chemical equivalent thereof, and a C2-8 aliphatic diol or a chemical equivalent thereof, and a second polyester comprising units derived from isophthalic and/or terephthalic acid and a chemical equivalent thereof, and a C2-8 aliphatic diol or a chemical equivalent thereof. The composition can be extruded into pellets that are clear and colorless. The composition can further be molded into articles having a percent haze value less than or equal to 10 percent, and total luminous transmittance value of greater than or equal to 70 percent, measured in accordance with ASTM D1003-00. Also disclosed is a method for forming the compositions, and articles prepared therefrom.Type: ApplicationFiled: April 30, 2007Publication date: October 30, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Shreyas Chakravarti, Bernardus Antonius Gerardus Schrauwen, Robert Dirk van de Grampel
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Publication number: 20080259611Abstract: An acrylic or other polymer composition, optionally containing aluminum trihydrate, and having undoped and/or doped titanium dioxide dispersed evenly throughout is disclosed. Said composition provides a sterile surface which can be renewed. Said composition provides a highly sterile surface upon photoactivation of the surface by at least either low-level ultraviolet irradiation or ambient/natural light (as when using doped titanium dioxide). A method of using such a surface material is also disclosed. Said acrylic or other polymer composition may be adhered onto a polycarbonate or other polymeric backing, optionally by an intervening layer of a third polymer. The resulting acrylic or other polymer/polycarbonate or other polymer combination is adapted to provide ambient lighting when exposed to a light source.Type: ApplicationFiled: November 8, 2007Publication date: October 23, 2008Applicant: Optimus Services, LLCInventor: John R. Mangiardi
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Publication number: 20080249221Abstract: Disclosed is a novel polymeric nanoparticle adhesive composite including a nanoparticle filler and method for the production thereof. More particularly, the disclosure describes the use of nanoparticle fillers, including a novel halloysite nanoparticle filler which utilizes generally cylindrical or tubular nanoparticles (e.g. rolled scroll-like shape). The filler is effectively employed in a polymer nanoparticle adhesive composite, containing the halloysite nanoparticle or other equivalent naturally occurring nanotubular filler, in which the advantages of the nanoparticle filler are provided (e.g., reinforcement, flame retardant, etc.) while maintaining or improving mechanical performance of the adhesive composite (e.g.Type: ApplicationFiled: April 6, 2007Publication date: October 9, 2008Applicant: NaturalNano Research, Inc.Inventors: Robert W. Corkery, Cathy Fleischer, Robert C. Daly
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Publication number: 20080193702Abstract: Polymer composition comprising (1) at least one poly(aryletherdisulfone) [polymer (P)] of which more than 50 mole % of the recurring units are recurring units (R1): (1) wherein Ar and Q, equal or different, are divalent radicals comprising at least one aromatic ring, and (2) a combination (AC) of additives composed of at least one fibrous filler (A1), and at least one non fibrous surface modifier (A2) chosen from liquid surface modifiers and particulate surface modifiers. Shaped article comprising the polymer composition, wherein said shaped article is a sliding part suitable for being used in a friction and wear application. Method of manufacturing said shaped article which comprises solution processing, compression molding, machining and/or melt processing the polymer composition.Type: ApplicationFiled: September 30, 2005Publication date: August 14, 2008Applicant: SOLVAY ADVANDED POLYMERS, L.L.C.Inventors: Glenn W. Cupta, Edward Ryan, Brian A. Stern
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Publication number: 20080185750Abstract: A composition is provided that, in one aspect, may be used in the production of sealing materials, such as gaskets. The composition includes a polytetraflouroethylene matrix and a Boron Nitride filler. In one aspect, the Boron Nitride filler may be provided as a hexagonal, close-packed, Boron Nitride filler that is homogeneously dispersed within the polytetraflouroethylene matrix. In at least one embodiment, the composition is formed by combining quantities of polytetraflouroethylene, Boron Nitride filler, hydrocarbon liquid, and solvent. The liquid and solvent may be removed through various processes prior to sintering the composition to form a full-density, Boron Nitride filled, polytetraflouroethylene matrix that exhibits improved sealability, greater resistance to permeation, and less color contamination.Type: ApplicationFiled: February 6, 2008Publication date: August 7, 2008Inventor: Ameet Kulkarni
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Publication number: 20080185361Abstract: Compositions useful in circuitry substrates are described which have a polyimide component, and a sterically hindered hydrophobic epoxy component. Generally, a flowable precursor is applied and then cured to a wholly or partially solidified mass. The invention is also directed to methods of forming a passive electrical component upon or into a circuit board.Type: ApplicationFiled: November 19, 2007Publication date: August 7, 2008Inventor: John D. Summers
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Publication number: 20080182930Abstract: A light-absorbing resin composition for use in laser welding that retains transparency and enables stable laser welding to be performed. The light-absorbing resin composition for use in laser welding comprises a high-molecular-weight dispersant that has a glass transition temperature of 30° C. or higher and laser-light-absorbing nanoparticles. The laser-light-absorbing nanoparticles are nanoparticles of a hexaboride expressed by the general formula XB6 (where X is one or more elements selected from La, Ce, Gd, Tb, Dy, Ho, Y, Sm, Eu, Er, Tm, Yb, Lu, Sr, and Ca).Type: ApplicationFiled: January 2, 2008Publication date: July 31, 2008Applicant: SUMITOMO METAL MINING CO., LTD.Inventor: Kenji Adachi
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Publication number: 20080176984Abstract: The present invention relates to a thermoset resin modified polyimide resin composition, which comprises (a) polyimide resin, (b) cyanate, (c)bismaleimide, and (d) nanometer filler. By using the present thermoset resin modified polyimide resin composition, heat expansion coefficient of polyimide can be reduced. Also, heat resistance and dimension stability of the polyimide resin can be improved and thus it is suitable for cladding with copper foil to produce printed circuit board.Type: ApplicationFiled: May 10, 2007Publication date: July 24, 2008Inventors: Kuen Yuan Hwang, An Pang Tu, Sheng Yen Wu
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Publication number: 20080153960Abstract: A boron nitride composition comprising at least two different boron nitride powder materials having different properties, e.g., surface areas, particle size, tap density, etc.Type: ApplicationFiled: October 5, 2007Publication date: June 26, 2008Inventors: Paulo Meneghetti, Chandrashekar Raman
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Publication number: 20080153959Abstract: Disclosed herein is a moldable composition, comprising an organic polymer; a filler composition comprising graphite; and boron nitride, wherein the moldable composition has an electrical resistivity greater than or equal to about 1013 ohm/sq, wherein the moldable composition has a melt flow index of about 1 to about 30 grams per 10 minutes when measured at a temperature of 280° C. under a load of 16 kgf/cm2. Disclosed herein too is a moldable composition, comprising about 30 to about 85 wt % of an organic polymer; a filler composition, comprising about 10 to about 70 wt % graphite; about 5 to about 60 wt % boron nitride; wherein the moldable composition has a thermal conductivity of about 2 to about 6 Watts per meter-Kelvin; and an electrical resistivity greater than or equal to about 1013 ohm/sq.Type: ApplicationFiled: March 21, 2007Publication date: June 26, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Sanjay Gurabasappa Charati, Soumyadeb Ghosh, Manjunath HR, Jennifer Su Saak, Kunj Tandon
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Publication number: 20080139699Abstract: A method of producing a carbon-based material includes steps (a), (b) and (c). In the step (a), an elastomer and at least a first carbon material is mixed and the first carbon material is dispersed by applying a shear force to obtain a composite elastomer. In the step (b), the composite elastomer is heat-treated to vaporize the elastomer, and a second carbon material is obtained. In the step (c) the second carbon material is heat-treated together with a substance including an element Y to vaporize the substance including the element Y, a melting point of the element Y being low.Type: ApplicationFiled: January 14, 2008Publication date: June 12, 2008Applicant: NISSIN KOGYO CO., LTD.Inventors: Akira Magario, Toru Noguchi
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Publication number: 20080125532Abstract: Embodiments of the present invention relate to a method of making a biopolymeric material comprising contacting a biopolymer and a binder sufficient to form a mixture, heating the mixture and profile extruding the mixture sufficient to create a biopolymeric material. Embodiments also relate to a method of making a biopolymeric material comprising contacting a biopolymer and a reactive composite sufficient to form a mixture, heating the mixture and profile extruding the mixture sufficient to create a biopolymeric material.Type: ApplicationFiled: November 2, 2007Publication date: May 29, 2008Applicant: DiaServe, Inc.Inventor: Michael A. Nelson
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Patent number: 7378463Abstract: An intumescent fire retardant system for making polymeric moldings that is halogen-free and provides fire shielding, thermal shielding and a low heat release rate. The intumescent fire retardant system of the present invention comprises, on the basis of 100 parts by weight blended mixture, 20-45 parts of a polymeric binder based on high density polyethylene and an ?-olefin-containing copolymer, such as linear low density polyethylene, and 5-25 parts of a nitrogenous gas-generating agent, 10-30 parts of a water vapor-generating agent, 1-5 parts of an antioxidant, and 0-15 parts of a reinforcing agent. The fire retardant system of the present invention is essentially halogen-free.Type: GrantFiled: February 4, 2004Date of Patent: May 27, 2008Assignee: Enerdel, Inc.Inventor: Ismat Ali Abu-Isa
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Publication number: 20080119595Abstract: A flame retardant synthetic solid surface material is disclosed which in one aspect meets stringent requirements for flammability, heat release, smoke density and toxic gas release making it suitable for commercial aircraft and similar high safety applications. The solid surface material comprises an organic resin component and a filler system comprised of at least one flame retardant substance. Also disclosed herein are methods for the manufacture of said solid surface materials and exemplary uses thereof.Type: ApplicationFiled: November 17, 2006Publication date: May 22, 2008Inventors: Steve W. Waters, Paul D. Hiltman
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Publication number: 20080076864Abstract: A silicone rubber composition which cures by condensation is provided. After curing, the silicone rubber exhibits excellent insulation and antistatic properties, and this silicone rubber has overcome the problem of electrostatic adsorption of the dust in the air in the applications including a master template, tampon printing, and a large size industrial roll. The silicone rubber composition which cures by condensation contains an ion conductive antistatic agent.Type: ApplicationFiled: September 19, 2007Publication date: March 27, 2008Applicant: Shin-Etsu Chemical Co., Ltd.Inventor: Hiroshi MOGI
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Publication number: 20080076856Abstract: A boron nitride composition having its surface treated with a coating layer comprising at least an organosilicon compound. In one embodiment, the boron nitride powder surface is first treated by either a calcination process, or by coating with at least an inorganic compound for the surface to have a plurality of reactive sites containing at least a functional group that is reactive to at least one functional group of the organosilicon compound.Type: ApplicationFiled: November 9, 2006Publication date: March 27, 2008Applicant: General Electric CompanyInventors: Hong Zhong, Eric Thaler
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Patent number: 7342068Abstract: Aqueous polyurethane dispersions comprising polyurethane polymer and methods for making and using same are disclosed herein. In one aspect of the present invention, aqueous polyurethane dispersions, comprising a polyurethane polymer having a weight average molecular weight ranging from 20,000 to 80,000, are prepared by controlling the weight average molecular weight of the polymer by reacting the isocyanate terminated prepolymer with at least one chain terminating agent; and/or maintaining a N/COOH molar ratio of amine in the neutralizing agent to acid functional group in the isocyanate reactive compound to from about 0.5:1 to about 1:1.Type: GrantFiled: November 18, 2003Date of Patent: March 11, 2008Assignee: Air Products and Chemicals, Inc.Inventors: Eric Howard Klingenberg, Shafiq Nisarali Fazel
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Patent number: 7338993Abstract: A flame-retardant molding composition that includes an epoxy resin, melamine cyanurate, and one or more hydrated metal salts capable of liberating water when heated. The hydrated metal salt may include one or more compounds selected from metal borate salts, Group IIB oxides, and polyhydroxides of one or more elements selected from Group IIA elements and Group IIIB elements. The molding composition may be used to coat an electrical or electronic device by heating the molding composition to a temperature sufficient to cure the molding composition and form a polymer on the surface of the device. Electrical and electronic devices formed by the method are also disclosed.Type: GrantFiled: May 17, 2005Date of Patent: March 4, 2008Assignee: Henkel CorporationInventors: Tanweer Ahsan, Charles N. Volante, Charles S. Bischof
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Patent number: 7338730Abstract: There is provided a conductive curable resin composition comprising (A) a curable resin composition comprising an elastomer with a Mooney viscosity (ML1+4 (100° C.)) of 25 or greater at 2-80 wt % and (B) a carbon material, with a weight ratio of component (A) to component (B) of 70-5:30-95. The curable resin composition of component (A) preferably comprises (A1) an elastomer at 80-2 wt %, (A2) a radical reactive resin at 20-98 wt % and (A3) an organic peroxide at 0.2-10 parts by weight to 100 parts by weight of (A1+A2). Also provided are a process for production of a conductive cured resin by shaping and curing of the conductive curable resin composition, and a fuel cell separator, an assembly for a cell, an electrode or a heat releasing plate, obtained thereby.Type: GrantFiled: February 16, 2005Date of Patent: March 4, 2008Assignee: Showa Denko K.K.Inventors: Masayuki Noguchi, Tomoaki Kobayashi, Tadashi Iino
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Publication number: 20080039566Abstract: An object of the present invention is to provide a neutron shielding material that exhibits high heat resistance and has ensured neutron shielding capability. Provided is a neutron shielding material composition that exhibits excellent heat resistance and has ensured neutron shielding capability, the composition comprising a hydrogenated bisphenol epoxy represented by a structural formula (1): wherein R1 to R4 independently selected from the group consisting of CH3, H, F, Cl and Br, and n is from 0 to 2; a curing agent component having at least one ring structure and a plurality of amino groups; a density-increasing agent; and a boron compound.Type: ApplicationFiled: February 4, 2004Publication date: February 14, 2008Inventors: Noriya Hayashi, Yoshiyuki Tasaka, Nobuo Ishihara
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Patent number: 7329698Abstract: There is provided a conductive curable resin composition comprising (A) a curable resin composition comprising an elastomer with a Mooney viscosity (ML1+4 (100° C.)) of 25 or greater at 2-80 wt % and (B) a carbon material, with a weight ratio of component (A) to component (B) of 70-5:30-95. The curable resin composition of component (A) preferably comprises (A1) an elastomer at 80-2 wt %, (A2) a radical reactive resin at 20-98 wt % and (A3) an organic peroxide at 0.2-10 parts by weight to 100 parts by weight of (A1+A2). Also provided are a process for production of a conductive cured resin by shaping and curing of the conductive curable resin composition, and a fuel cell separator, an assembly for a cell, an electrode or a heat releasing plate, obtained thereby.Type: GrantFiled: August 6, 2002Date of Patent: February 12, 2008Assignee: Showa Denko K.K.Inventors: Masayuki Noguchi, Tomoaki Kobayashi, Tadashi Iino
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Publication number: 20080009575Abstract: A stabilized aqueous mixture containing at least one borohydride compound and at least one metal hydroxide compound. The mixture has improved stability with regard to decomposition of borohydride, especially at elevated temperatures.Type: ApplicationFiled: June 28, 2007Publication date: January 10, 2008Inventors: Curtis Schwartz, John Hiroshi Yamamoto
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Publication number: 20070259211Abstract: This invention relates to a heat spread sheet material comprised of hexagonal boron nitride with adhesives. Extraction process for adhesive coating greatly decreases the adhesive fraction and provides an evenly distributed thin adhesive film on the surface of hexagonal boron nitride powders. This sheet material shows a layer structure and anisotropic properties. With 10 vol % (5.5 wt %) of phenolic epoxy, thermal conductivity along the base plane of the sheet reaches 48 W/m·K, and CTE reaches 3.5 ppm/K.Type: ApplicationFiled: April 28, 2007Publication date: November 8, 2007Inventor: Ning Wang
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Publication number: 20070259119Abstract: The present invention relates to a composition of thermal conductive layer and the preparing method thereof, which comprises forming a surface coating by a composition of boron nitride and binding reagent in order to enhancing the thermal disperse effect of the surface. It applies for the material surface of heat exchange metal blocks, piece materials, heat exchanger, metal back plate, metal and the plastic shell.Type: ApplicationFiled: October 23, 2006Publication date: November 8, 2007Inventor: Chien-Chi Shen
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Publication number: 20070230131Abstract: The present invention discloses methods, materials and devices for facilitating electromagnetic/radiofrequency interference (EMI/RFI) shielding and thermal management in packaging circuits. More specifically, a method of packaging integrated circuits with improved thermal and EMI management, a process of treating a compound for use as a thermal interface and/or an EMI shield, and an EMI shielding and thermal management apparatus. More specifically, the present invention divulges methods and apparatuses for adjusting viscosity of a thermally and/or electrically conductive (or thermally conductive and/or electrically insulative), form-in-place, fully cured compound thereby rendering the compound dispensable. Further, a process of treating a compound for use as a thermal interface or/and an EMI shield is disclosed. The compound is an admixture of a particulate filler component and a pre-cured gel component.Type: ApplicationFiled: March 28, 2007Publication date: October 4, 2007Inventors: Michael H. Bunyan, Phillip Blazdell
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Publication number: 20070219312Abstract: A thermal interface material composition including a blend of a polymer matrix and a thermally conductive filler having particles having a maximum particle diameter no greater than about 25 microns, wherein the polymer matrix includes an organopolysiloxane having at least two silicon-bonded alkenyl groups per molecule, an organohydrogenpolysiloxane having at least two silicon-bonded hydrogen atoms per molecule and a hydrosilyation catalyst comprising a transition metal, wherein the transition metal is present in an amount of from about 10 to about 20 ppm by weight based on the weight of the non-filler components and the molar ratio of the silicon-bonded hydrogen atoms to the silicon-bonded alkenyl groups ranges from about 1 to about 2. A method is also provided.Type: ApplicationFiled: December 1, 2006Publication date: September 20, 2007Inventor: Jennifer Lynn David
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Patent number: 7265169Abstract: Adhesive compositions produced from abundant and renewable resources such as lignocellulosic materials, particularly decayed lignocellulosic materials or demethylated lignin. Other components present in particular examples of the adhesive compositions include relatively inexpensive materials, such as borates and/or polyethyleneimine. Also disclosed are lignocellulosic composites that are made from the adhesive compositions.Type: GrantFiled: March 16, 2004Date of Patent: September 4, 2007Assignee: State of Oregon Acting by and trhough the State Board of Higher Education on Behalf of Oregon State UniversityInventors: Kaichang Li, Xinglian Geng
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Patent number: 7262240Abstract: A paint system and process are disclosed for hardfacing metal surfaces. In one embodiment of the process, a paint including a dispersion of hard particles is first applied as a coating to a surface. Next, a paint including a dispersion of a braze alloy is applied over the layer of hard particles. The surface is then heated to cause the braze alloy to melt and infiltrate into the hard particles thereby bonding them to the metallic surface. In another embodiment, a first layer of adhesive is applied, and a hardfacing powder is applied onto the adhesive. Then a second layer if adhesive is applied, and a braze alloy powder is applied onto the second adhesive. Then the material is heated as in the first embodiment. In another embodiment, paint containing hard particles is coated onto the substrate, and an acid-containing cross-linked copolymer in the paint is then neutralized to increase the viscosity of the paint to prevent running.Type: GrantFiled: June 23, 2003Date of Patent: August 28, 2007Assignee: Kennametal Inc.Inventors: Ernest J. Breton, John M. Handzel, Otis K. Tennant
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Patent number: 7247673Abstract: A coating for weatherstrips, windshield wipers, door seals, trunk seals, sunroof seals, windshield seals and the like. The coating comprises a water-based formula that provides high abrasion resistance and, optimally, also provides excellent weathering resistance. The abrasion resistance property is achieved via a combination of boron nitride and a high molecular weight silicone resin. Flexibility and weathering resistance are achieved via the addition of an acrylic/polyurethane/fluoropolymer resin binder blend and high UV-stabilizers and absorbers. Also provided is a method of manufacturing such coatings that comprises the steps of pre-dispersing the boron nitride in water and then combining the pre-dispersed boron nitride with the silicone resin and other ingredients.Type: GrantFiled: February 20, 2004Date of Patent: July 24, 2007Assignee: National Starch and Chemical Investment Holding CorporationInventors: Michael W. Pinter, Marufur Rahim
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Patent number: 7244376Abstract: In hexaboride particles having particles of a hexaboride of at least one element (X) selected from Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Sr and Ca, or a dispersion of such particles, the surfaces of the hexaboride particles have physically been coated with a surface treatment agent containing silicon, selected from a silazane type treatment agent, a chlorosilane type treatment agent, an inorganic treatment agent having at least one alkoxyl group in the molecular structure, and an organic treatment agent having at least one alkoxyl group at a molecular terminal or in the side chain, or have been coated with the surface treatment agent, having chemically combined with hexaboride particles on the surfaces of the hexaboride particles.Type: GrantFiled: January 26, 2004Date of Patent: July 17, 2007Assignee: Sumitomo Metal Mining Co., Ltd.Inventor: Hiromitsu Takeda
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Patent number: 7241826Abstract: The present invention provides a resin composition containing a filler poor in affinity for fluororesins as uniformly dispersed therein and a method of producing such resin composition and, further, a resin composition containing, as fillers, a nucleating agent for foaming and suited for producing foamed moldings with fine foam cells uniformly distributed therein and a method of producing such resin composition as well as a foamed molding formed from either of such resin compositions. The present invention is related to a resin composition comprising a fluororesin (A) and a filler (X) low in affinity for said fluororesin (A), wherein the filler (X) has a d99 value of not more than 15 ?m.Type: GrantFiled: June 26, 2002Date of Patent: July 10, 2007Assignee: Daikin Industries, Ltd.Inventors: Keizou Shiotsuki, Eiji Fujita, Tatsuya Higuchi, Shouji Fukuoka, Takahiro Taira
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Patent number: 7232932Abstract: A perfluoropolyether, a composition comprising the perfluoropolyether, a process for producing the perfluoropolyether, and a process for improving the thermostability of grease or lubricant are provided. The perfluoropolyether comprises perfluoroalkyl radical end groups in which the radical has at least 3 carbon atoms per radical and is substantially free of perfluoromethyl and perfluoroethyl end groups. The process for producing the perfluoropolyether can comprise (1) contacting a perfluoro acid halide, a C2-to C4-substituted ethyl epoxide, or a C3+ fluoroketone with a metal halide to produce an alkoxide; (2) contacting the alkoxide with either hexafluoropropylene oxide or tetrafluorooxetane to produce a second acid halide; (3) esterifying the second acid halide to an ester; (4) reducing the ester to its corresponding alcohol; (5) converting the alcohol with a base to a salt form; (6) contacting the salt form with a C3 or higher olefin to produce a fluoropolyether; and (7) fluorinating the fluoropolyether.Type: GrantFiled: March 30, 2004Date of Patent: June 19, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Jon L. Howell, Erik William Perez, Alfred Waterfeld, Chadron Mark Friesen, Joseph Stuart Thrasher
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Patent number: RE39992Abstract: A thermally conductive mechanically compliant pad including a quantity of gallium and/or indium alloy liquid at temperatures below about 120° C. and a boron nitride particulate solid blended into the liquid metal alloy to form a paste. The paste is then combined with a quantity of a matrix forming flowable plastic resin such as microwax, silicone wax, or other silicone polymer to form the thermally conductive mechanically compliant pad, the compliant pad comprising from between about 10% and 90% of metal alloy coated particulate, balance flowable plastic resin.Type: GrantFiled: May 4, 2005Date of Patent: January 1, 2008Assignee: The Bergquist CompanyInventors: Sanjay Misra, GM Fazley Elahee