Impregnation Patents (Class 428/396)
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Patent number: 10233324Abstract: An epoxy resin composition, the epoxy resin composition including components (A1) to (C1) described below, wherein the content of the component (B1) is 8 to 20 parts by mass relative to 100 parts by mass of the component (A1), and the content of the component (C1) is 12 to 110 parts by mass relative to 100 parts by mass of the component (A1): component (A1): an epoxy resin; component (B1): a boron trihalide-amine complex; and component (C1): rubber particles.Type: GrantFiled: June 5, 2013Date of Patent: March 19, 2019Assignee: MITSUBISHI CHEMICAL CORPORATIONInventors: Yukihiro Harada, Satoshi Okamoto, Kenta Narumori, Tomoo Sano, Akihiro Ito, Masayuki Sugiura, Tatsuhiro Kishikawa, Shinya Katou, Sanae Kita
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Patent number: 9017811Abstract: A particulate material includes an aluminous material and a silica dopant. The particulate material includes crystallite particles with a crystallite particle size of less than about 10 nm. The crystallite particles are stacked together to form primary particles with a primary particle size of less than about 500 nm. The primary particles are agglomerated together to form secondary particles with a secondary particle size of greater than about 1 ?m. The particulate material has a mean pore diameter of not less than 8 nm.Type: GrantFiled: June 28, 2012Date of Patent: April 28, 2015Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventors: Mure Te, Doruk O. Yener
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Patent number: 8911863Abstract: The present invention relates to a method for producing an aramid core wire, containing a step of covering or impregnating an original yarn of an aramid core with a first treating agent containing a condensate of resorcin and formaldehyde, a latex and a water-soluble epoxy compound; an aramid core wire produced by the method; a transmission belt containing the aramid core wire; a method for producing the transmission belt; and a treating agent.Type: GrantFiled: February 15, 2013Date of Patent: December 16, 2014Assignee: Mitsuboshi Belting Ltd.Inventors: Hideyuki Matsumoto, Toshihiro Nishimura
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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: 8742054Abstract: A hybrid resin composition is described, the composition comprising: A. An A part composition comprising an aliphatic polyfunctional isocyanate compound and a free radical polymerization initiator; and B. A B part composition comprising an ethylenically unsaturated, substantially water-free polyester polyol and a polyurethane catalyst. The A part composition can contain a non-interfering solvent, e.g., styrene, and the B part composition typically has an acid value of 5 or less (based on solids). For outdoor use, the B part composition is preferably free of tertiary hydrogens, ether glycols and terephthalic acid residues.Type: GrantFiled: August 18, 2006Date of Patent: June 3, 2014Assignee: CCP Composites USInventors: Frédéric Bauchet, Larry Morris, Woody Holley, Kenneth Seroogy
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Patent number: 8668983Abstract: The present invention provides an epoxy resin composition for a fiber reinforced composite material comprising an epoxy resin (A) comprising an epoxy resin (a1) having a weight average molecular weight of up to 1,000 and an epoxy resin (a2) having a weight average molecular weight of 10,000 to 100,000 which contains at least 20% by weight of the basic skeleton of the epoxy resin (a1), a thermoplastic resin (B), and a curing agent (C). The cured composition has a co-continuous phase of the epoxy resin (A) and the thermoplastic resin (B) and/or a continuous phase of the thermoplastic resin (B). A cured product having a high toughness can be obtained from this epoxy resin composition.Type: GrantFiled: December 12, 2007Date of Patent: March 11, 2014Assignee: The Yokohama Rubber Co., Ltd.Inventors: Masayuki Kawazoe, Hiroyuki Okuhira, Koichiro Miyoshi, Tomohiro Ito, Takashi Kousaka, Mitsuhiro Iwata
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Publication number: 20140051169Abstract: A method for producing a nanofiber-based product includes providing a carrier material solution having a carrier material, and bringing the carrier material in contact with a collector by electrospinning. The carrier material essentially consists of a polymer being—at least after having contacted the collector—embedded in a polymer, which polymer is formed by a crosslinker of the general formula (I) wherein R1 is a single bond between the adjacent carbon atoms, or a carbohydrate chain having 1 to 10 carbon atoms and optionally bearing a hydroxy group, and wherein R2, R3, R4 and R5 are independently from each other a hydrogen; a carbohydrate chain having 1 to 10 carbon atoms and optionally bearing a hydroxy group; a hydroxy group; or a sulfhydryl group; with the provision that the compound bears at least two hydroxy groups, or two sulfhydryl groups, or one hydroxy group and one sulfhydryl group.Type: ApplicationFiled: November 23, 2011Publication date: February 20, 2014Applicant: Spin Plant GmbHInventors: Timothy Ganey, Jörg Meisel
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Publication number: 20130253661Abstract: A composite implant comprising an injectable matrix material which is flowable and settable, and at least one reinforcing element for integration with the injectable matrix material, the at least one reinforcing element adding sufficient strength to the injectable matrix material such that when the composite implant is disposed in a cavity in a bone, the composite implant supports the bone.Type: ApplicationFiled: February 28, 2013Publication date: September 26, 2013Inventors: Jeffrey A. D'Agostino, Andrew J. Carter, Arthur Watterson, Joseph P. Lane
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Patent number: 8469915Abstract: A device for treatment of wounds using reduced pressure is provided. The device includes a pump, a reservoir connected to said pump for collecting exudate from a wound, an inlet to the reservoir for connecting the reservoir with the wound so as to allow the pump to expose the wound to the reduced pressure, a wound pad to be arranged in the wound cavity, and a sealing covering the wound and the wound pad. The wound pad consists of an open-cell polyurethane foam which is fully impregnated with a soft hydrophobic silicone gel, and the foam has a hardness of 1.0-6.0 kPa measured according to ISO 3386-1 at at 40% compression The wound pad can be used with an absorbent member. A method is also provided for manufacturing the wound pad.Type: GrantFiled: April 7, 2009Date of Patent: June 25, 2013Assignee: Molnlycke Health Care ABInventors: Ulf Johannison, Sofia Frantzich
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Patent number: 8440914Abstract: A liquid crystalline thermoset oligomer or polymer including a structural unit of Chemical Formulae 1 and 2; and a functional group of Chemical Formula A,Type: GrantFiled: December 13, 2010Date of Patent: May 14, 2013Assignees: Samsung Electronics Co., Ltd., Samsung Electro-Mechanics Co., Ltd., Samsung Fine Chemicals Co., Ltd.Inventors: Jae-Jun Lee, Kalinina Fedosya, Myung-Sup Jung
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Publication number: 20130101847Abstract: Dispersions and methods for forming dispersions that include a higher crystallinity polyolefin and at least one dispersing agent are disclosed. Various applications for use of the dispersions are also disclosed.Type: ApplicationFiled: October 23, 2012Publication date: April 25, 2013Applicant: Dow Global Technologies LLCInventor: Dow Global Technologies LLC
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Patent number: 8372504Abstract: Provided is a non-hydrolytic transparent composite composition having excellent transparency and heat resistance, and a low thermal expansion coefficient. Particularly, the transparent composite composition includes a glass filler dispersed in a crosslinked transparent resin produced by a non-hydrolytic reaction. The non-hydrolytic transparent siloxane resin is a resin having Si—O (siloxane) bonds, a resin having at least one kind of heterometal bonds, including Si—O bonds, or the resin further containing other ingredients. When the transparent siloxane resin produced by a non-hydrolytic reaction forms a composite in combination with the glass filler, the composite realizes high transparency and heat resistance, as well as a low thermal expansion coefficient. Therefore, the transparent composite composition is useful as a substrate for thin film transistor (TFT) devices, display devices and optical devices.Type: GrantFiled: November 12, 2009Date of Patent: February 12, 2013Assignee: Korea Advanced Institute of Science and TechnologyInventors: Byeong-Soo Bae, Jungho Jin, Seung Cheol Yang, Ji Hoon Ko
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Patent number: 8361618Abstract: A composite configured to release refrigerant therefrom comprises a substrate material comprising polarized fibers of glass, polyamide, phenylene sulfide, carbon or graphite or combinations of two or more thereof having bonded thereon a metal compound comprising a complex compound of a polar gaseous refrigerant and a metal salt and/or a hydrated metal hydroxide and/or a metal hydroxide of a metal comprising alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, or two or more thereof, at a concentration of at least about 0.Type: GrantFiled: April 30, 2010Date of Patent: January 29, 2013Assignee: Rocky ResearchInventors: Uwe Rockenfeller, Kaveh Khalili
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Publication number: 20130011678Abstract: A particulate material includes an aluminous material and a silica dopant. The particulate material includes crystallite particles with a crystallite particle size of less than about 10 nm. The crystallite particles are stacked together to form primary particles with a primary particle size of less than about 500 nm. The primary particles are agglomerated together to form secondary particles with a secondary particle size of greater than about 1 ?m. The particulate material has a mean pore diameter of not less than 8 nm.Type: ApplicationFiled: June 28, 2012Publication date: January 10, 2013Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.Inventors: Mure Te, Doruk O. Yener
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Publication number: 20120251798Abstract: A soft feel decorative, textured laminate used for various vertical surfaces of the interior of commercial aircraft. Fire resistant silicone materials are used as a cap layer on various substrates including FR resin impregnated woven glass and naturally high flammability resistance polymer film. The FR-silicone cap layer can be used on various substrates, such as polymeric film, polymeric sheet, foam fabric materials, woven/non-woven and knitted glass. The FR-silicone cap layer can be colored or combined with prints. A clear silicone layer can be laminated on top of a printed silicone layer to protect the print and provide better abrasion resistance. The silicone laminate passes FAA and OEM interior aircraft flammability requirements including heat release, smoke and vertical burn.Type: ApplicationFiled: April 4, 2012Publication date: October 4, 2012Inventor: Yan Chen
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Patent number: 8206808Abstract: A prepreg composite material that includes a fiber layer and a resin comprising a thermoset resin component, a curing agent and a fibrous micropulp. The micropulp component is an aramid fiber having a volume average length of from 0.01 to 100 micrometers. The prepreg is useful in composite panel construction for minimizing fluid permeation into the cured structure. This prepreg is particularly suitable for making honeycomb sandwich panels. Film adhesives, liquid and paste resins containing aramid fiber micropulp are also disclosed.Type: GrantFiled: June 2, 2011Date of Patent: June 26, 2012Assignee: E. I. du Pont de Nemours and CompanyInventors: Subhotosh Khan, Halvar Young Loken
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Patent number: 8142875Abstract: Provided is an epoxy resin composition for fiber-reinforced composite materials, which serves as a matrix resin composition for use in a self-adhesive prepreg for a face sheet of a honeycomb panel. The epoxy resin composition enables to increase self-adhesiveness of the prepreg, while improving workability and appearance quality of the prepreg. The epoxy resin composition is characterized by containing: an epoxy resin (A) which is in a liquid state at room temperature; a thermoplastic resin (B) which dissolves in the epoxy resin (A) at a temperature not less than 90° C.; thermosetting resin particles (C) which do not completely dissolve in the epoxy resin (A) at a temperature less than 90° C. and has a softening point of not less than 120° C.; and a curing agent (D).Type: GrantFiled: April 24, 2007Date of Patent: March 27, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventors: Takashi Kousaka, Mitsuhiro Iwata, Tomohiro Ito
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Patent number: 8137786Abstract: Provided is an epoxy resin composition for fiber-reinforced composite materials, which is improved in toughness necessary for improving the strength of self-adhesion of a matrix resin for use in a prepreg for a face sheet of a honeycomb panel. The epoxy resin composition, which comprises: an epoxy resin (A); a thermoplastic resin (B); fine solid resin particles (C); and a curing agent (D), is characterized in that the epoxy resin composition after being cured has a morphology in which the epoxy resin (A) and the thermoplastic resin (B) form co-continuous phases, and the fine solid resin particles (C) are dispersed in at least the continuous phase of the epoxy resin (A) in the co-continuous phases.Type: GrantFiled: April 24, 2007Date of Patent: March 20, 2012Assignee: The Yokohama Rubber Co., Ltd.Inventors: Takashi Kousaka, Tomohiro Ito, Mitsuhiro Iwata, Koichiro Miyoshi
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Publication number: 20120052296Abstract: Disclosed is a glass fiber-silsesquioxane composite molded article containing glass fibers and a cured material of a silsesquioxane polymer composited therewith, wherein the silsesquioxane has a polyhedral structure or a partially polyhedral structure. The glass fiber-silsesquioxane composite molded article is preferably obtained by impregnating glass fibers with a composition containing at least one of silsesquioxanes represented by formula (A-1) to (A-3) and at least one of a curing agent, a polymerization initiator, and a hydrosilylation catalyst, or the silsesquioxane polymer and allowing a curing reaction to proceed.Type: ApplicationFiled: April 14, 2010Publication date: March 1, 2012Inventors: Hironori Ikeno, Kazuhiro Yoshida
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Publication number: 20110206931Abstract: This invention relates to an improved method for making composite structures by dispersing a high tenacity fiber such as aramid in a polymeric matrix to form a premix, combining the premix with a natural fiber such as wood flour and extruding the resulting mixture through a fiber alignment plate and die such that the fibers are substantially aligned in the flow direction of the extrudate.Type: ApplicationFiled: February 24, 2010Publication date: August 25, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Jill A. Conley, Brian E. Foy
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Publication number: 20110143618Abstract: The present invention relates to an epoxy resin compound, a preparation method thereof, a prepreg made therefrom, and a copper cladded laminate made therefrom. The epoxy resin compound comprises: 30-80 parts by weight of epoxy resin; 20-50 parts by weight of polyphenylene ether resin of new structure with the number average molecular weight thereof being 1000-5000, which is prepared via the redistribution reaction of polyphenylene ether and phenolic resin with the existing of initiator agent; 0-50 parts by weight of filler; 1-20 parts by weight of ingredient. The epoxy resin compound of the present invention, has good heat resistance and dielectric property, and has a simple preparation process, which is good for batch production.Type: ApplicationFiled: June 22, 2010Publication date: June 16, 2011Applicant: GUANGDONG SHENGYI SCI.TECH CO., LTD.Inventors: DONG WEI, Ke Hong Fang
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Publication number: 20110132512Abstract: A rubber composition for coating a steel cord comprising: (A) 100 parts by weight of a rubber component mainly containing at least one rubber selected from the group consisting of natural rubbers, styrene-butadiene copolymerized rubbers and butadiene rubbers, (B) 0.5 to 3 parts by weight of a condensation composition containing a condensation product of resorcin and acetone, which contains 40 to 80% by weight of 2,2,4-trimethyl-2?,4?,7?-trihydroxyflavan and 0 to 0.2% by weight of an acid or an alkali metal salt thereof per the total weight of the condensation composition, (C) 0.1 to 0.4 part by weight of an organic cobalt compound in terms of cobalt content, and (D) 0.5 to 2 parts by weight of a methoxylated methylolmelamine resin.Type: ApplicationFiled: June 2, 2009Publication date: June 9, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventor: Naoki Inui
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Publication number: 20110061891Abstract: The invention relates to an electric insulation material including modified nanoparticles, a porous substrate and polymer matrix, wherein the modified nanoparticles include a nanoparticle and a diblock copolymer covalently attached to the nanoparticle, the diblock copolymer including a first block polymer of molecular weight greater than 1000 and a glass transition temperature below room temperature attached to the nanoparticle and a second block polymer of molecular weight greater than 1000 covalently linked to the first block polymer, wherein the second block polymer and the matrix both possess the same chemical functionality. Other electrical insulation materials and methods of making such electrical insulation materials are also disclosed.Type: ApplicationFiled: April 9, 2010Publication date: March 17, 2011Applicant: RENSSELAER POLYTECHNIC INSTITUTEInventors: Linda S. SCHADLER, Henrik HILLBORG, Brian BENICEWICZ, Su ZHAO
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Patent number: 7850877Abstract: A coating composition comprising 100 pbw as solids of a synthetic resin emulsion and 1-300 pbw of a non-halogen flame retardant in which phosphorus and nitrogen-containing non-halogen flame retardant particles are surface coated with a functional group-containing organosilicon resin is applicable to vehicle interior materials such as car seats, floor mats and ceiling members.Type: GrantFiled: March 4, 2010Date of Patent: December 14, 2010Assignees: Nissin Chemical Industry Co., Ltd., Shin-Etsu Chemical Co., Ltd.Inventors: Nobuyuki Takahata, Norio Nakamura, Yuji Gama, Harukazu Okuda
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Publication number: 20100304631Abstract: Sintered, carbon friction materials are made from fibrous materials that are impregnated with resins prior to sintering. Preferably, non-woven fibrous materials are impregnated with phenolic resin and sintered at 400 to 8000 C. The resulting material has an open porosity above 50 percent by volume.Type: ApplicationFiled: October 31, 2006Publication date: December 2, 2010Applicant: BORGWARNER INC.Inventors: Feng Dong, Robert C. Lam, Yih Fang Chen
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Patent number: 7838111Abstract: A cellulose pulp particle having the shape of a general prismatoid having two parallel bases, the pulp particle comprising pulp fibers in a wet laid pulp sheet form, one of the bases having an area that is equal to or greater than the area of the other base, the area of the larger base being equal to or less than 35 mm2 and equal to or greater than 8 mm2, the distance between the bases being equal to or greater than 0.9 mm and equal to or less than 5 mm, the particle being treated with a material. In some embodiments the material can be a hydrophilic, hydrophobic or softening chemical or a film.Type: GrantFiled: January 25, 2007Date of Patent: November 23, 2010Assignee: Weyerhaeuser NR CompanyInventors: David E Fish, Hugh West, Linda A Beltz
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Publication number: 20100285314Abstract: The invention relates to thermoset-bound fiber moldings produced from fiber material based on natural and/or synthetic fibers and bound by means of a thermoset binder. To produce thermoset-bound fiber moldings which combine the good mechanical, acoustical and fire properties of phenolic-bound fiber moldings with an ideally complete absence of any odor due to phenolic resin, at least one adsorbent is embedded in the surface and/or in the interior of the fiber molding during the operation of pre- and/or end-curing the thermosetting binder.Type: ApplicationFiled: July 14, 2005Publication date: November 11, 2010Inventor: Franz-Josef Müller
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Publication number: 20100261014Abstract: A molding head is especially adapted for vacuum molding or forming of structures and, in particular fibrous composite structures using recycled carbon fiber, in an adjustable, controllable three dimensional orientation before, during and after molding. Such a molding head includes a mold plate with narrow slots in the mold surface thereof and wider channels in the back surface thereof, with such slots and channels intersecting one another. A control system of servomotors or other actuators permits movement and orientation of the mold head during forming, thereby creating the ability to vary the material properties based on gravity and particle or suspension grain, thickness and other now controllable properties.Type: ApplicationFiled: June 25, 2010Publication date: October 14, 2010Inventor: Ervin Geiger, JR.
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Patent number: 7811666Abstract: A system for self-repairing matrices such as concrete or cementitous matrices, polymeric matrices, and/or fibrous matrices, including laminates thereof. The system includes repair agents retained in and/or on vessels, such as hollow fibers, within the matrix. Upon impact, the vessel rupture, releasing the chemicals. For multi-layer laminates, the systems provides a total dynamic energetic circulation system that functions as an in situ fluidic system in at least one layer or area. The energy from the impact ruptures the vessels to release the chemical(s), and mixes the chemical(s) and pushes the chemical(s) and/or resulting compound through the matrix. The repair agents can withstand high temperatures, such as the heat of processing of many laminates, e.g., 250-350° F.Type: GrantFiled: June 30, 2006Date of Patent: October 12, 2010Inventor: Carolyn Dry
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Publication number: 20100190402Abstract: The present invention relates to a process for the production in continuous of cellulose-based flame-retardant fibres or filaments and textile articles obtained therefrom, comprising the predispersion in water of an organophosphoric additive, the dosing and mixing of the aqueous predispersion in a solution of cellulose xanthogenate, the filtration of the mixed solutions and spinning in a regenerating and coagulation bath.Type: ApplicationFiled: January 28, 2009Publication date: July 29, 2010Applicant: LENZING AKTIENGESELLSCHAFTInventors: Francesco TOZZI-SPADONI, Andrea Seghizzi, Giovanni Patritti
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Patent number: 7758959Abstract: The present invention relates to yarns, fibres or filaments made of thermoplastics and to their manufacture. It relates more particularly to yarns, fibres or filaments exhibiting good fire resistance properties and to processes for the manufacture of these articles. These yarns or fibres made of polymer are obtained by spinning a polymer comprising an additive possessing flame-retardant properties composed of at least particles of a solid substrate on which a flame-retardant compound is adsorbed.Type: GrantFiled: June 25, 2004Date of Patent: July 20, 2010Assignee: Rhodia ChimieInventors: André Lambert, Alexis Ponnouradjou, Lorraine Leite, Jean-Emile Zanetto
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Publication number: 20100178506Abstract: Process for the production of a molding from particulate and/or fibrous substrates based on renewable raw materials and a formaldehyde-free, aqueous binder.Type: ApplicationFiled: June 9, 2008Publication date: July 15, 2010Applicant: BASF SEInventors: Heidi Boerzel, Kathrin Michl, Rainer Scheidhauer
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Publication number: 20100144228Abstract: The present invention is generally directed to, in one embodiment, a composite electrospun nanofiber being formed of a nanofiber and a particle at least partially embedded within the nanofiber, the particle having a width that is greater than the diameter of the fiber so that at least a portion of the particle is not covered by the nanofiber.Type: ApplicationFiled: December 9, 2008Publication date: June 10, 2010Inventors: Kelly D. Branham, Joel Brostin, Jennifer A. Kaminski
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Publication number: 20100136335Abstract: The present invention relates to compositions and methods for treating textile fibers and, in particular, to compositions and methods for treating fibers of carpet and other floor coverings. In one aspect, the present invention provides compositions and methods that can reduce energy consumption and conserve water resources in the production of dyed fibrous substrates having desirable repellency and stain resistant properties.Type: ApplicationFiled: October 1, 2009Publication date: June 3, 2010Inventors: Ralph R. Sargent, Michael S. Williams, Michael Grigat, Billy Lee Hullender
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Patent number: 7722952Abstract: A composite configured to release refrigerant therefrom comprises a substrate material comprising polarized fibers of glass, polyamide, phenylene sulfide, carbon or graphite having bonded thereon a metal compound comprising a complex compound of a polar gaseous refrigerant and a metal salt and/or a hydrated metal hydroxide and/or a metal hydroxide of a metal selected from the group consisting of alkali metal, alkaline earth metal, transition metal, zinc, cadmium, tin, aluminum, or two or more thereof, at a concentration of at least about 0.3 grams/cc of open substrate material volume, and a coating composition thereon configured to prevent release of internal gaseous refrigerant therethrough at ambient temperatures and pressure and capable of penetration of gaseous refrigerant therethrough from the composite interior at temperatures causing internal gas pressures of 15% or more above exterior pressure for such refrigerant release.Type: GrantFiled: January 4, 2005Date of Patent: May 25, 2010Assignee: Rocky ResearchInventors: Uwe Rockenfeller, Kaveh Khalili
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Patent number: 7718260Abstract: This invention provides hollow fibers impregnated with gel in which the gel firmly adheres to the inner walls of the hollow fibers due to the introduction of comb polymers on the inner walls of the hollow fibers. These hollow fibers impregnated with gel have no gaps at the interfaces between the inner walls thereof and the gel. Accordingly, analysis can be performed with high accuracy. Also, thin slices obtained by bundling these hollow fibers and then slicing this bundle have sufficient adhesion between the gel and the inner walls of the hollow fibers. This also prevents gel from becoming detached from the inner walls at the time of slicing or during operations such as hybridization.Type: GrantFiled: July 31, 2002Date of Patent: May 18, 2010Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Chiuhei Otsuki, Chiho Itou, Haruko Miyauchi, Teruta Ishimaru, Takashi Akita, Nobuko Oogami
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Patent number: 7713621Abstract: This invention concerns a thermosetting resin system that is useful in the manufacture of high performance prepreg, laminate and composite materials as well as, prepregs, laminates and composites made from the thermosetting resin composition.Type: GrantFiled: April 2, 2009Date of Patent: May 11, 2010Assignee: Isola USA Corp.Inventors: Martin Choate, Jyoti Sharma, Steve Peters, Kevin Rafferty
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Publication number: 20100092764Abstract: Provided herein are, among other things, epoxy resin varnishes and methods of making and using the same. In some embodiments, the epoxy resin varnishes comprise at least a filler such as silica. In certain embodiments, the epoxy resin varnishes provided herein are used for making laminates such as copper clad laminates. In farther embodiments, the copper clad laminates provided herein are used for making printed circuit boards (PCBs).Type: ApplicationFiled: December 18, 2008Publication date: April 15, 2010Applicant: Ventec International Group LimitedInventors: Chien-Jen CHUNG, Zhuo Wang
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Patent number: 7666966Abstract: The invention relates to a process for the production of post-crosslinkable thermoplastic resins by bulk-polymerizing a polymerizable composition (A) comprising (I) a monomer fluid containing a cyclic olefin (?) having two or more metathetical ring-opening reaction sites in the molecule in an amount 10 wt % or above based on the total amount of the monomers or a monomer fluid containing a norbornene monomer and a crosslinking agent, (II) a metathetical polymerization catalyst, and (III) a chain transfer agent; thermoplastic resins obtained by this process; and a process for producing crosslinked resins or crosslinked resin composite materials which comprises laminating such a thermoplastic resin with a substrate at need and then crosslinking the thermoplastic resin. According to the invention, thermoplastic resins which are free from odor due to residual monomers and excellent in storage stability can be efficiently obtained by a simple process of bulk-polymerizing the composition (A).Type: GrantFiled: April 11, 2007Date of Patent: February 23, 2010Assignee: Zeon CorporationInventor: Tomoo Sugawara
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Patent number: 7638187Abstract: A beneficiated fiber and composite including a fiber having a lumen with voids. A suspension including a bonding agent, chemical blowing agent, and catalyst is drawn into the lumen by a capillary action to beneficiate the fiber. The beneficiated fiber may be imbedded with a polymeric material to form the composite. The natural voids of the lumen are preserved by the suspension causing the fiber to maintain natural density and strength characteristics.Type: GrantFiled: December 28, 2006Date of Patent: December 29, 2009Assignee: Americhem, Inc.Inventor: Jeffrey E. Nesbitt
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Patent number: 7592067Abstract: Disclosed are epoxy resin compositions which include an alkali metal containing cure accelerator. The alkali metal containing cure accelerators are preferably alkali metal hydroxides, alkoxides, carboxylates, or alkali metal salts. Articles prepared from the resin compositions of the invention exhibit enhanced thermal properties, and similar non-thermal properties, when compared to articles prepared from compositions including other accelerators such as imidazoles. The resin compositions of the invention may be used for any purpose, but are particularly suited to be utilized in the manufacture of laminates for printed circuit boards and non-electrical structural applications.Type: GrantFiled: September 22, 2003Date of Patent: September 22, 2009Assignee: Hexion Specialty Chemicals, Inc.Inventors: Walter H. Christiansen, Larry S. Corley, Carlton E. Ash
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Publication number: 20090233095Abstract: A reinforcement fibrous cord having excellent adhesive strength produced by impregnating a meshed cord fabric formed from warp yarns for reinforcement cords and weft yarns having a softening temperature or a melting temperature lower than any of the softening temperature, the melting temperature and the thermal decomposition-initiating temperature of the warp yarns, with adhesive agent, and heat-treating the fabric at the temperature equal to or higher than the softening or melting temperature of the weft yarn and lower than any of the softening temperature, the melting temperature and the thermal decomposition-initiating temperature of the warp yarns so that the weft yarns are self-broken while being fuse-adhered to the adhesive agent-impregnated warp yarns whereby projections caused by the broken residues of the weft yarns are formed on the warp yarns.Type: ApplicationFiled: August 3, 2007Publication date: September 17, 2009Applicant: TEIJIN FIBERS LIMITEDInventors: Kenji Obora, Masashi Furukawa
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Publication number: 20090233094Abstract: A radiation-curing resin composition that includes a resin component that includes an epoxy resin and/or oxetane resin having a naphthalene structure or a biphenyl structure, a boron-based diaryliodonium salt polymerization initiator represented by a specific formula at 0.005 to 0.5 mol per kg of the resin component, and a viscosity adjusting agent, the resin composition having a viscosity at 50° C. of at least 50 Pa·s, and a prepreg obtained by impregnating a fiber reinforcement with such a resin composition. This resin composition has excellent reactivity, and a prepreg formed from this resin composition and a fiber reinforcement is used for producing a composite material/member suitable for the aerospace field in particular.Type: ApplicationFiled: September 6, 2006Publication date: September 17, 2009Applicant: TOHO TENAX CO., LTD.Inventor: Yasuyuki Yokoe
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Publication number: 20090202826Abstract: A process for producing a fiber reinforced resin which comprises placing at least a reinforcing fiber substrate in a cavity of a mold, injecting a resin into the cavity, and curing the resin, characterized in that a substrate for forming a skin layer, and a resin distribution medium, which is located between the substrate for forming the skin layer and the reinforcing fiber substrate and in which the ratio of the coefficient of impregnation thereof to that of the substrate for forming the skin layer is 1.5-10, are disposed on at least one surface of the reinforcing fiber substrate via an interlayer having a cover factor of 90%-100% and comprising at least one woven fabric. The process diminishes pinhole generation in the skin layer in RTM, and can reduce the necessity of a repair step in, e.g., a painting step as a later step, thereby improving productivity.Type: ApplicationFiled: March 1, 2007Publication date: August 13, 2009Applicant: TORAY INDUSTRIES, INC.Inventors: Toshihide Sekido, Hidehiro Takemoto, Seiji Tsuji, Shintaro Tanaka
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Publication number: 20090202832Abstract: An epoxy resin composition suitably used for a prepreg which can complete curing in a short time even at a low temperature and secure a sufficient usable period under preservation at room temperature, in comparison with conventional epoxy resin compositions. An epoxy resin composition comprising at least one of an epoxy resin, an amine compound having at least one sulfur atom in the molecule thereof, and a reaction product of an epoxy resin and an amine compound having at least one sulfur atom in the molecule thereof, and an amine compound having at least one sulfur atom in the molecule thereof, and a urea compound and a dicyandiamide, wherein each of the contents of the sulfur atom and the urea compound in the epoxy resin composition is respectively 0.2 to 7% by mass and 1 to 15% by mass.Type: ApplicationFiled: March 27, 2008Publication date: August 13, 2009Applicant: Mitsubishi Rayon Co., Ltd.Inventors: Tsuneo Takano, Akitada Yanase, Tadashi Sakai, Kiharu Numata, Akihiro Ito, Masato Taguchi, Junichi Muramatsu, Kazuya Goto, Kazuki Koga
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Patent number: 7560398Abstract: A cleaning wipe including a fiber web and a tacky material. The fiber web defines opposing surfaces and an intermediate region between the opposing surfaces. In this regard, at least one of the opposing surfaces serves as a working surface for the cleaning wipe. The tacky material is applied to the web such that a level of tacky material is greater in the intermediate region than at the working surface. In one embodiment, the amount of tacky material per area of web material is greater in the intermediate region than at either of the opposing surfaces. In another embodiment, the fiber web is a nonwoven fiber web.Type: GrantFiled: July 18, 2003Date of Patent: July 14, 2009Assignee: 3M Innovative Properties CompanyInventors: Daniel J. Zillig, Gary L. Olson, Thomas E. Haskett
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Publication number: 20090123850Abstract: The invention relates to an anode for lithium secondary battery comprising vapor grown carbon fiber uniformly dispersed without forming an agglomerate of 10 ?m or larger in an anode active material using natural graphite or artificial graphite, which anode is excellent in long cycle life and large current characteristics. Composition used for production for the anode can be produced, for example, by mixing a thickening agent solution containing an anode active material, a thickening agent aqueous solution and styrene butadiene rubber as binder with a composition containing carbon fiber dispersed in a thickening agent with a predetermined viscosity or by mixing an anode active material with vapor grown carbon fiber in dry state and then adding polyvinylidene difluoride thereto.Type: ApplicationFiled: July 3, 2006Publication date: May 14, 2009Applicant: SHOWA DENKO K.K.Inventors: Masataka Takeuchi, Chiaki Sotowa
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Publication number: 20090022990Abstract: [Object]To prepare a polyester fiber and fiber cord having an excellent heat resistance which does not generate thermal melting at high temperature while properties such as dimensional stability, high strength and durability are maintained. To provide a material which is useful as a belt for tire and a carcass material. [Means to Solve]A polyester fiber and fiber cord comprising a copolymerized polyester is impregnated with a compound having at least two unsaturated bonds, and is irradiated with electronic ray or ?-ray, whereby the compound causes a cross-linking reaction in the inner area and surface layer of the polyester fiber and fiber cord, which results in a fiber and fiber cord having an excellent heat resistance.Type: ApplicationFiled: April 26, 2006Publication date: January 22, 2009Applicant: TOYO BOSEKI KABUSHIKI KAISHAInventors: Shigenori Nagahara, Kenji Yoshino, Satoshi Imahashi, Noriko Takahashi
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Patent number: 7476716Abstract: The invention relates to a process for the production of post-crosslinkable thermoplastic resins by bulk-polymerizing a polymerizable composition (A) comprising (I) a monomer fluid containing a cyclic olefin (?) having two or more metathetical ring-opening reaction sites in the molecule in an amount 10 wt % or above based on the total amount of the monomers or a monomer fluid containing a norbornene monomer and a crosslinking agent, (II) a metathetical polymerization catalyst, and (III) a chain transfer agent; thermoplastic resins obtained by this process; and a process for producing crosslinked resins or crosslinked resin composite materials which comprises laminating such a thermoplastic resin with a substrate at need and then crosslinking the thermoplastic resin. According to the invention, thermoplastic resins which are free from odor due to residual monomers and excellent in storage stability can be efficiently obtained by a simple process of bulk-polymerizing the composition (A).Type: GrantFiled: June 26, 2003Date of Patent: January 13, 2009Assignee: Zeon CorporationInventor: Tomoo Sugawara
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Patent number: 7413801Abstract: An aqueous composition that includes a) aqueous hydroxy functional, carboxy functional polymer including the reaction product of at least 5% by weight ?,?-ethylenically unsaturated hydroxy monomer, at least 30% by weight ethylenically unsaturated carboxylic acid monomer, from 0% by weight to less than 50% by weight ?,?-ethylenically unsaturated nonhydroxy functional, noncarboxy functional monomer, and chain transfer agent, and b) condensation accelerator, and articles that include a nonwoven web including glass fibers, and cured aqueous binder composition.Type: GrantFiled: April 20, 2006Date of Patent: August 19, 2008Assignee: H.B. Fuller Licensing & Financing, Inc.Inventors: Wayne P. Miller, Stewart C. Anderson, Michael J. Dochniak