序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
161 PROCESS FOR DISPERSING PARTICLES IN FILLED RESIN COMPOSITIONS US14876512 2015-10-06 US20160122479A1 2016-05-05 Oleg Kozyuk
An improved process for dispersing filler particles in a resin composition is disclosed. The filler particles, for instance electrically conductive or metal particles, are mixed with a resin material or blend of materials including a resin material to form a mixture that is subjected to an acceleration force. The acceleration force can be generated by passing the mixture through a static nozzle having particular dimensions to generate an acceleration of the mixture in the nozzle in excess of 400,000 m/sec2. The treated particles become uniformly dispersed in the resin composition and a reduction in average particle size of the filler material can be achieved.
162 Epoxy resin system containing polyethylene tetramines and triethylene diamine catalyst for resin transfer molding processes US14422047 2013-11-11 US09321880B2 2016-04-26 Sergio Grunder; Rainer Koeniger; Timothy A. Morley; Nebjosa Jelic; Sylvie Vervoort; Martin Reimers; Peter Cate
A two-component curable epoxy resin system is disclosed. The resin system includes an epoxy resin component containing at least 80% by weight of a polyglycidyl ether of a polyphenol. The system also includes an hardener mixture containing mainly polyethylene tetraamines. The system include triethylene diamine in specific amounts as a catalyst. The system has beneficial curing characteristics that make it useful for producing fiber-reinforced composites in a resin transfer molding process.
163 FIBER-REINFORCED EPOXY RESIN MATERIAL, PREPREG AND, TUBULAR BODY MADE OF FIBER-REINFORCED EPOXY RESIN MATERIAL US14439582 2013-10-31 US20150290900A1 2015-10-15 Hiromasa Tsunashima; Yasuo Naito; Kazuyoshi Shiga
An object of the present invention is to provide a novel fiber-reinforced epoxy resin material having improved strength. The fiber-reinforced epoxy resin material of the present invention comprises a cured product of an epoxy resin composition and a reinforcing fiber, wherein the epoxy resin composition comprises a novolac type epoxy resin as an epoxy resin component, and the cured product of the epoxy resin composition has a swelling ratio in a range from 20 mass % to 44 mass % in methyl ethyl ketone.
164 Process for producing coalesced rubber microparticles and their blends with epoxy resins US14085383 2013-11-20 US09096733B2 2015-08-04 Soobum Choi; Lawrence Justice; James Eckler
Coalesced rubber particles having an average particle size of 5-50 microns are produced by: (1) adding simultaneously to a latex of pre-crosslinked rubber particles a solvent and an electrolyte solution to form swollen rubber aggregation particles, wherein the solvent has a lower boiling point than water and a capacity of swelling the rubber by at least 10 wt %, and the electrolyte is a solution of at least one metal salt; (2) removing the solvent under atmospheric pressure or low vacuum and at temperature greater than 80° C. to coalesce the rubber into particles having an average particle size of 5-50 50 microns; (3) filtering and washing with methanol; and (4) filtering the washed particles to remove methanol. An epoxy resin is blended with the particles and residual methanol removed, to obtain a blend containing coalesced rubber particles having an average particle size of 5-50 microns in the blended state.
165 THERMOSETTING RESIN COMPOSITION AND USAGE THEREOF US14580298 2014-12-23 US20150183992A1 2015-07-02 Xianping ZENG; Yujun XIN
The present invention relates to a thermosetting resin composition, wherein the resin composition comprises: (A) an epoxy resin with main chain containing naphthol structure; (B) a cyanate ester compound or/and an isocyanate ester prepolymer; (C) a poly phosphonate ester or/and phosphonate-carbonate copolymer. The thermosetting resin provided by the present invention has low dielectric constant and dielectric loss angular tangent value. The prepreg and copper-clad laminate made from the thermosetting resin composition above has excellent dielectrical properties, wet-heat resistance, flame resistance of UL94 V-0 grade and good technical processing performance.
166 TOUGHENED COMPOSITE MATERIALS AND METHODS OF MANUFACTURING THEREOF US14564295 2014-12-09 US20150174872A1 2015-06-25 Mark Richard Bonneau; Gordon Emmerson
Disclosed herein are toughened composite materials, and methods for manufacturing thereof. At least one interleaf toughing particle and at least one polymer veil are used to synergistically increase the toughness of a fiber/polymer composite. The at least one interleaf toughening particle and at least one polymer veil can be located in the interlaminar sections of the composite material.
167 Phosphorus-containing phenolic resin, method for manufacturing the same, and use of the same US14279673 2014-05-16 US08981014B2 2015-03-17 Masato Takenouchi; Tadatoshi Fujinaga; Erina Kimura; Yu-Chin Lee; Jen-Hai Liao; Sung-Chen Lo
The present invention provides a novel phosphorus-containing phenolic resin. When the phosphorus-containing phenolic resin is used as an epoxy resin curing agent, the cured product thereof has various excellent properties such as excellent moisture resistance, low permittivity, a low dissipation factor, and excellent adhesion in addition to improved flame retardation. Specifically, the phosphorus-containing phenolic resin of the invention is represented by formula (1). The invention also provides a method for manufacturing the novel phosphorus-containing phenolic resin, a phenolic resin composition including the phosphorus-containing phenolic resin, an epoxy resin curing agent including the phenolic resin composition, an epoxy resin composition including the epoxy resin curing agent and an epoxy resin, a cured product obtained by curing the epoxy resin composition, and a copper-clad laminated plate obtained by using the epoxy resin composition as a matrix resin.
168 CARBON FIBER BASE, PREPREG AND CARBON-FIBER-REINFORCED COMPOSITE MATERIAL US14368746 2012-12-20 US20140322504A1 2014-10-30 Kaori Narimatsu; Noriyuki Hirano; Masato Honma; Atsuki Tsuchiya; Akihiko Kitano
A carbon fiber base which comprises a continuous-carbon-fiber layer constituted of continuous carbon fibers and, disposed on one or each surface of the continuous-carbon-fiber layer, a carbon short-fiber web in which short carbon fibers having an average fiber length of 2-12 mm have been dispersed in the shape of single fibers; a prepreg which comprises the carbon fiber base and a matrix resin infiltrated into the carbon fiber base; and a carbon-fiber-reinforced composite material which comprises the carbon fiber base and a matrix resin infiltrated into the carbon fiber base and cured.
169 Tubular body made of fiber-reinforced epoxy resin material US13729327 2012-12-28 US08858358B2 2014-10-14 Kazuyoshi Shiga; Yasuo Naito
It is an object to provide a tubular body made from a novel fiber-reinforced epoxy resin material having improved strength. A tubular body made of a fiber-reinforced epoxy resin material according to the present invention is a tubular body made of a fiber-reinforced epoxy resin material comprising a cured product of an epoxy resin composition and a reinforcing fiber. The cured product of the epoxy resin composition has a swelling ratio of 20% by mass to 42.5% by mass in methyl ethyl ketone.
170 RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, CURED PRODUCT THEREOF, FIBER-REINFORCED COMPOSITE MATERIAL, MOLDING OF FIBER-REINFORCED RESIN, AND PROCESS FOR PRODUCTION THEREOF US13917969 2013-06-14 US20130281576A1 2013-10-24 Atsuko Kobayashi; Ichirou Ogura
The present invention provides a resin composition for a fiber-reinforced composite material, which has excellent fluidity and impregnation into a fiber base material and which produces a cured product having excellent heat resistance. A resin composition for a fiber-reinforced composite material contains, as essential components, a poly(glycidyloxyaryl) compound (A), a polymerizable monomer (B) which is an unsaturated carboxylic acid or an anhydride thereof and has a molecular weight of 160 or less, an aromatic vinyl compound or a (meth)acrylate (C), and a radical polymerization initiator (D), wherein an equivalent ratio [glycidyloxy group/acid group] of a glycidyloxy group in the component (A) to an acid group in the component (B) is 1/1 to 1/0.48, and a molar ratio [(B)/(C)] of the component (B) to the component (C) is in the range of 1/0.55 to 1/2.
171 CYCLOALIPHATIC CARBONATES AS REACTIVE DILUENTS IN EPOXY RESINS US13583255 2011-03-03 US20130203894A1 2013-08-08 Bruce L. Burton
Embodiments of the present invention disclose a method for limiting peak exotherm temperatures in epoxy systems comprising the step of: combining an amine hardener, an epoxy and a diluent to form an epoxy system, wherein the diluent is selected from the group consisting of: ethylene carbonate, propylene carbonate, butylene carbonate, delta-valerolactam, delta-valerolactone, gamma valerolactone, butyrolactam, beta butyrolactone, gamma butyrolactone, and combinations thereof.
172 Resin composition for fiber-reinforced composite material, cured product thereof, fiber-reinforced composite material, molding of fiber-reinforced resin, and process for production thereof US13389692 2010-08-06 US08487052B2 2013-07-16 Atsuko Kobayashi; Ichirou Ogura
The present invention provides a resin composition for a fiber-reinforced composite material, which has excellent fluidity and impregnation into a fiber base material and which produces a cured product having excellent heat resistance. A resin composition for a fiber-reinforced composite material contains, as essential components, a poly(glycidyloxyaryl) compound (A), a polymerizable monomer (B) which is an unsaturated carboxylic acid or an anhydride thereof and has a molecular weight of 160 or less, an aromatic vinyl compound or a (meth)acrylate (C), and a radical polymerization initiator (D), wherein an equivalent ratio [glycidyloxy group/acid group] of a glycidyloxy group in the component (A) to an acid group in the component (B) is 1/1 to 1/0.48, and a molar ratio [(B)/(C)] of the component (B) to the component (C) is in the range of 1/0.55 to 1/2.
173 Phosphazene Blocked Imidazole as Latent Catalyst for Epoxy Resins US13640645 2010-04-30 US20130035456A1 2013-02-07 Journey Lu Zhu; Ping Shao Ren; Shaoguang Feng
Epoxy resin compositions utilizing phosphazene blocked azole compounds as curing catalyst are provided. Also provided are epoxy resins cured with phosphazene blocked azole compounds and methods of making cured epoxy resins using curing catalysts of phosphazene blocked azole compounds.
174 EPOXY RESIN COMPOSITION, PREPREG, AND FIBER REINFORCED COMPOSITE MATERIAL US12919285 2009-02-26 US20110009528A1 2011-01-13 Nobuyuki Tomioka; Shiro Honda; Yuki Mitsutsuji; Maki Mizuki; Takayuki Imaoka
It is an object of the present invention to provide a fiber reinforced composite material combining good properties such as toughness and impact resistance and to provide an epoxy resin composition to obtain this. This object is achieved by the an epoxy resin composition comprising the following [A], [B], [C], and [D]: [A] a diglycidyl ether-type epoxy resin having a molecular weight of 1,500 or more; [B] an epoxy resin in which an SP value of a structural unit thereof is greater by 1.5 to 6.5 than an SP value of a structural unit of [A]; [C] a diglycidyl ether-type epoxy resin having a molecular weight of 500 to 1,200; and [D] an epoxy resin curing agent, in a ratio that satisfies the following formulas (1) to (4): 0.2≦A/(A+B+C+E)≦0.6;  (1), 0.2≦B/(A+B+C+E)≦0.6;  (2), 0.15≦C/(A+B+C+E)≦0.4; and  (3), 0≦E/(A+B+C+E)≦0.2,  (4) wherein A, B, and C represent weights of [A], [B], and [C], respectively, and E represents a weight of an epoxy resin other than [A], [B], and [C].
175 CARBON FIBER REINFORCED PREPREG OF GAS BARRIER PROPERTIES, CARBON FIBER REINFORCED PLASTIC AND METHODS OF PRODUCING THE SAME US12741553 2008-10-27 US20100304145A1 2010-12-02 Koichi Yonemoto; Takeo Ebina; Fujio Mizukami; Keiichi Okuyama; Shoji Kamiya
There are provided a carbon fiber reinforced prepreg of gas barrier properties comprising a sheet-like carbon fiber reinforcement and a matrix resin including therein a gas barrier layer having a clay mineral with a plate-like crystal structure unidirectionally aligned and densely laminated, and a carbon fiber reinforced plastic produced from the carbon fiber reinforced prepreg. Such prepreg is obtained by disposing a film material of gas barrier properties having a clay mineral with a plate-like crystal structure unidirectionally aligned and densely laminated, in at least one interlayer of a laminate of a carbon fiber reinforced prepreg comprising a sheet form carbon fiber reinforcement and a matrix resin; and then heating and/or pressurizing the laminate. The carbon fiber-reinforced composite material of the invention exhibits high gas barrier properties, and particularly hydrogen gas barrier properties.
176 EPOXY RESIN COMPOSITION US12808304 2008-09-16 US20100280191A1 2010-11-04 Amit Dixit; Pradip Kumar Dubey; Thitikan Prommaneewat
A process for making a molded composite comprising the following steps: reacting a reaction mass containing a polyepoxide, in the proportion of about 20% to 50% with respect to the reaction mass, a diol, in the proportion of about 10% to 20% with respect to the reaction mass, a hardener, in the proportion of about 20% to 50% with respect to the reaction mass, in the presence of an accelerator in the proportion of about 0.5 to 10.0% with respect to the reaction mass either alone or in solution with compatible diluents, to obtain an epoxy resin mix having intrinsic viscosity in the range of 100 to 850 cPs, pouring the resin mix in a mold having an in-situ glass fiber scaffold at a mold temperature in the range of 45 to 50 C and applying pressure to the resin mix in the mold to form a compressed green composition: partially curing the compressed green composition at a temperature in the range of 60 to 80 C to obtain a partially cured composite; and further curing the partially cured composite at a temperature in the range of 80 to 90 C to obtain a fully cured composite. The composite is used for structural applications like windmill blades, yachts, domes, ships made from a composite made in accordance with the process as mentioned herein.
177 Method for Producing Fiber-Reinforced Thermally Meltable Epoxy Resin US11920497 2006-05-12 US20090215929A1 2009-08-27 Hirofumi Nishida; Norio Hirayama
Disclosed herein are a method for producing a fiber-reinforced thermally meltable epoxy resin having excellent heat resistance using a thermally meltable epoxy resin having a high melting initiation temperature and a fiber-reinforced plastic molded by the method. The method for producing a fiber-reinforced thermally meltable epoxy resin comprises the steps of: (I) impregnating reinforcing fibers with a compound (A) having two epoxy groups in one molecule and a compound (B) having two phenolic hydroxyl groups in one molecule; and (II) linearly polymerizing the compounds (A) and (B) impregnated into the reinforcing fibers by polyaddition reaction, wherein at least a part of the compound (A) and/or at least a part of the compound (B) are/is a compound having a fluorene skeleton, and the compound (A) and the compound (B) are mixed in such a ratio that the number of moles of epoxy groups in the compound (A) is 0.9 to 1.1 times the number of moles of phenolic hydroxyl groups in the compound (B).
178 CURABLE EPOXY RESIN COMPOSITION AND LAMINATES MADE THEREFROM US12097647 2006-12-20 US20090159313A1 2009-06-25 Ludovic Valette; Tomoyuki Aoyama
A curable halogen-containing epoxy resin composition comprising: (a) at least one epoxy resin; (b) at least one hardener; wherein the hardener is a compound containing a phenolic hydroxyl functionality or a compound capable of generating a phenolic hydroxyl functionality upon heating; (c) a catalytic amount of a nitrogen-containing catalyst; (d) a non-nitrogen containing catalyst adjuvant compound capable of reducing the concentration of the nitrogen-containing catalyst; wherein at least one of the above components (a)-(d) is halogenated or wherein the resin composition includes (e) a halogenated flame retardant compound. The stroke cure gel time of the resin composition is maintained from 90 seconds to 600 seconds when measured at 1700C; and the resultant cured product formed by curing the curable epoxy resin composition contains well-balanced properties. The composition may be used to obtain a prepreg or a metal-coated foil, or a laminate by laminating the above prepreg and/or the above metal-coated foil. The laminate shows a combination of superior glass transition temperature, decomposition temperature, time to delamination at 288° C., adhesion to copper foil, and excellent flame retardancy.
179 Epoxy Resin, Epoxy Resin Composition and Cured Product Thereof US11630813 2005-07-08 US20080032154A1 2008-02-07 Yasumasa Akatsuka; Katsuhiko Oshimi; Masataka Nakanishi
An epoxy resin represented by formula (1) below: wherein the ratio of the component having two nuclei accounting for 25% or less in terms of the area corresponding to the component in a gel permeation chromatogram.
180 COMPOSITES HAVING AN IMPROVED RESISTANCE TO FATIGUE US11764493 2007-06-18 US20080015305A1 2008-01-17 Elisabeth J. Berger; John N. Owens
Compositions including a base resin, a reinforcement and a modifier including a block copolymer for producing vesicles, spherical and/or cylindrical micelles and composites made therefrom.
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