Patents by Inventor Kaoru Ikeda
Kaoru Ikeda has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20050038163Abstract: For providing a blow molded container comprising an EVOH resin composition which generates less sourness and which is superior in interlayer adhesiveness and providing an environmentally friendly production process in which no carboxylic acid such as acetic acid is released during the production and molding of the EVOH resin composition, disclosed is a method comprising blow molding an ethylene-vinyl alcohol copolymer resin composition obtained by contacting an ethylene-vinyl alcohol copolymer 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 drying the copolymer until the water content is reduced to 1% by weight or less.Type: ApplicationFiled: July 22, 2004Publication date: February 17, 2005Applicant: Kuraray Co., Ltd.Inventors: Hiroyuki Shindome, Naohiko Uchiumi, Kaoru Ikeda
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Publication number: 20050032955Abstract: The present invention is directed to a resin composition superior in barrier properties and also superior in flexibility, secondary processability and interlayer adhesiveness. The present invention is also directed to an environmentally friendly method for producing a resin composition, the method releasing no carboxylic acid such as acetic acid to the peripheral environment. The invention provides an EVOH resin composition (F) which has a content of an alkali metal salt (A), in terms of the alkali metal, of 0.1 to 20 ?mol/g and a content of a carboxyl acid or its salt (C), in terms of carboxylate radical, of 2 ?mol/g or less and which has an ethylene content of 5 to 60 mol % and a saponification degree of from 80 to 99 mol %. In addition, the invention provides a resin composition comprising the EVOH resin composition (F) and an EVOH having an ethylene content of 5 to 60 mol % and a degree of saponification of 99.2 to 100 mol %.Type: ApplicationFiled: July 22, 2004Publication date: February 10, 2005Applicant: Kuraray Co., Ltd.Inventors: Kenji Nakano, Naohiko Uchiumi, Kaoru Ikeda
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Publication number: 20050027053Abstract: 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: ApplicationFiled: July 22, 2004Publication date: February 3, 2005Applicant: Kuraray Co., LtdInventors: Naohiko Uchiumi, Kaoru Ikeda, Noriyuki Kida, Tetsuya Hara, Syukiti Kawamura
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Publication number: 20050009987Abstract: The present invention provides a resin composition including an ethylene-vinyl alcohol copolymer (EVOH) and a polyamide resin and having outstanding properties in terms of long-term run stability, appearance, and hot water resistance in melt molding. In this resin composition, 70 mol % or more of all the terminal ends of the polyamide resin are blocked with units including an imide structure. At least a portion of the units containing an imide structure may be units containing a cyclic imide structure.Type: ApplicationFiled: May 19, 2004Publication date: January 13, 2005Applicant: Kuraray Co., Ltd.Inventors: Tetsuya Hara, Syukiti Kawamura, Yukio Ozeki, Naohiko Uchiumi, Kaoru Ikeda
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Patent number: 6822031Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises a gas barrier resin (A), a thermoplastic resin (B) other than the gas barrier resin (A), and a compatibilizer (C), wherein the gas barrier resin (A) has an oxygen transmission rate of 500 ml·20 &mgr;m/m2·days·atm (20° C., 65% RH) or less, the thermoplastic resin (B) has a carbon—carbon double bond, and an oxygen absorption rate of the resin composition is 0.001 m/m2·day or more.Type: GrantFiled: May 1, 2002Date of Patent: November 23, 2004Assignee: Kuraray Co., Ltd.Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Kaoru Ikeda
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Publication number: 20040220366Abstract: A styrene/hydrogenated diene block copolymer characterized in that it has in side chains at least one kind of functional groups selected from the group consisting of a boronic acid group and a boron-containing group capable of converting into a boronic acid group in the presence of water, the content of the functional groups in the copolymer is 100 to 2,000 &mgr;eq/g, and the weight ratio of the styrene units to hydrogenated diene units contained in the copolymer is from 5/95 to 70/30. By thus incorporating a sufficient amount of boron-containing groups, a highly reactive styrene/hydrogenated diene block copolymer is provided.Type: ApplicationFiled: August 1, 2003Publication date: November 4, 2004Inventors: Kaoru Ikeda, Hiroshi Kawai
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Publication number: 20040096683Abstract: Provided is a modified ethylene-vinyl alcohol copolymer (C) having an ethylen content of 5 to 55 mol %, which contains a specific structural unit (I) in an amount of 0.3 to 40 mol % and may be obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) having a molecular weight of not more than 500. This can be produced by a method for producing the modified ethylene-vinyl alcohol copolymer (C) which comprises melting and kneading an ethylene-vinyl alcohol copolymer (A) with a monofunctional epoxy compound (B) in an extruder. The modified ethylene-vinyl alcohol copolymer (C) is superior to a unmodified ethylene-vinyl alcohol copolymer (A) in transparency, stretchability, flexibility and flexing resistance due to the specific structural unit (I) incorporated therein, and thus, can be used as a barrier material in various applications requiring the above performance capabilities.Type: ApplicationFiled: November 14, 2003Publication date: May 20, 2004Inventors: Kaoru Ikeda, Shinji Tai, Kouta Isoyama, Tomoyuki Watanabe
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Publication number: 20040089388Abstract: Disclosed is an innerliner for pneumatic tires, wherein the innerliner comprises a modified ethylene-vinyl alcohol copolymer (C) obtained by reacting 1-50 parts by weight of an epoxy compound (B) with 100 parts by weight of an ethylene-vinyl alcohol copolymer (A) having an ethylene content of 25-50 mol %. A pneumatic tire with the innerliner can greatly improve the internal pressure retainabilities before and after driving without increasing the weight of the tire.Type: ApplicationFiled: October 27, 2003Publication date: May 13, 2004Applicants: Bridgestone Corporation, Kuraray Co., Ltd.Inventors: Kentaro Fujino, Shinji Tai, Kaoru Ikeda, Tomoyuki Watanabe, Kouta Isoyama
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Patent number: 6667083Abstract: A multilayer injection blow molded container of this invention, containing a layer of a specific ethylene-vinyl alcohol copolymer (A) and a layer of a resin composition (B) comprising a thermoplastic resin (b1) having a specific functional group and polypropylene (b2), is disclosed, having characteristics that it has excellent gas-barrier properties, has good interlayer adhesion, has excellent thermal stability and can be produced with a low cost.Type: GrantFiled: May 9, 2001Date of Patent: December 23, 2003Assignee: Kuraray Co., Ltd.Inventors: Nahoto Hayashi, William Scott Lambert, Hiroshi Kawai, Kaoru Ikeda, Shinji Tai
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Publication number: 20030207061Abstract: Multilayer blow molded containers, which comprise a layer of an ethylene-vinyl alcohol copolymer (A) having an ethylene content of 5 to 60% by mol and a degree of saponification of 85% or more and a layer of a resin composition (B), characterized in that the resin composition (B) comprises 1 to 40% by weight of a thermoplastic resin (b1) having at least one functional group selected from the group consisting of boron-containing groups that are convertible to a boronic acid group in the presence of water and a boronic acid group (hereinafter, referred to as a boron-containing functional group), and 60 to 99% by weight of polypropylene (b2), exhibit excellent gas-barrier properties, have good interlayer adhesion, have excellent thermal stability, and are low in production cost.Type: ApplicationFiled: December 6, 2002Publication date: November 6, 2003Applicant: KURARAY CO. LTD,Inventors: Nahoto Hayashi, William Scott Lambert, Hiroshi Kawai, Kaoru Ikeda, Shinji Tai
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Publication number: 20030031817Abstract: A multilayer injection blow molded container of this invention, containing a layer of a specific ethylene-vinyl alcohol copolymer (A) and a layer of a resin composition (B) comprising a thermoplastic resin (b1) having a specific functional group and polypropylene (b2), is disclosed, having characteristics that it has excellent gas-barrier properties, has good interlayer adhesion, has excellent thermal stability and can be produced with a low cost.Type: ApplicationFiled: May 9, 2001Publication date: February 13, 2003Applicant: Kuraray Co., Ltd.Inventors: Nahoto Hayashi, William Scott Lambert, Hiroshi Kawai, Kaoru Ikeda, Shinji Tai
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Publication number: 20030018114Abstract: The present invention provides a resin composition having an oxygen scavenging function. The resin composition comprises a gas barrier resin (A), a thermoplastic resin (B) other than the gas barrier resin (A), and a compatibilizer (C), wherein the gas barrier resin (A) has an oxygen transmission rate of 500 ml·20 &mgr;m/m2·days·atm (20° C., 65% RH) or less, the thermoplastic resin (B) has a carbon-carbon double bond, and an oxygen absorption rate of the resin composition is 0.001 m/m2·day or more.Type: ApplicationFiled: May 1, 2002Publication date: January 23, 2003Inventors: Shinji Tai, Hiroyuki Shimo, Masakazu Nakaya, Kaoru Ikeda
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Patent number: 6288165Abstract: A process for producing vinyl acetate polymers comprises, after polymerization of at least one monomer comprising vinyl acetate, adding a conjugated polyene having a boiling point of at least 20° C. Saponified products of the vinyl acetate polymers obtained by this process can give molded articles causing little coloring and generation of gel-like agglomerates.Type: GrantFiled: December 5, 1997Date of Patent: September 11, 2001Assignee: Kuraray Co., Ltd.Inventors: Takeshi Moritani, Kaoru Ikeda, Akimasa Aoyama, Takaharu Kawahara, Yukihiro Ohara, Naoshi Nakagawa, Toshinori Tsugaru
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Patent number: 6258464Abstract: A resin composition comprises a polyolefin (A), a saponified product (B) of an ethylene-vinyl ester copolymer having an ethylene content of from 10 to 70 mole % and a saponification degree of the vinyl ester component of not less than 80%, and an olefin-unsaturated dicarboxylic anhydride-unsaturated carboxylic ester or vinyl ester copolymer (C), wherein the following formulas (I) and (II) are satisfied 1/99≦weight of (B)/weight of (A)≦40/60 (I) 0.1/99.9≦X≦20/80 (II) wherein X=weight of (C)/total weight of (A) and (B). A multilayered structure comprising at least a layer of the above resin composition and a layer made of a saponified product of an ethylene-vinyl ester copolymer.Type: GrantFiled: February 17, 2000Date of Patent: July 10, 2001Assignee: Kuraray Co., Ltd.Inventors: Taichi Negi, Kaoru Ikeda, Hiromichi Nakano
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Patent number: 6212317Abstract: The device of manufacturing a color filter relating to the invention is provided with a laser irradiation device, in which the condensing lenses are spaced with a pitch whereby a color pattern of the same color of R, G, B can be formed, and are disposed so as to shift positions toward a scanning direction. Further, the laser generation unit of the laser irradiation device has coils made by the optical fibers being curled on the paths, which expand the wavelength band near the center of the laser beams, thus unifying the energy intensity of the part where the laser beams are irradiated. Further, the head unit of the laser irradiation device is provided with cooling means to control the temperature in the head, which prevents displacements in the arrangement pitches of the optical fibers.Type: GrantFiled: November 25, 1998Date of Patent: April 3, 2001Assignee: Alps Electric Co., Ltd.Inventors: Naoki Takeshita, Kaoru Ikeda, Yuzo Hayashi
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Patent number: 6096393Abstract: A gas barrier material having an oxygen permeability of not higher than 30 ml.multidot.20 .mu.m/m.sup.2 .multidot.day.multidot.atm measured at 20.degree. C., 100% RH, which comprises a polymer containing not less than 30 mol % of repeating units of formula (1): ##STR1## wherein R.sup.1 is a C.sub.1-2 alkyl group, and R.sup.2 is hydrogen or a C.sub.1-3 alkyl group.This gas barrier material exhibits very good gas barrier properties under conditions of high humidity, and it possesses superior clarity and melt moldability.Type: GrantFiled: October 15, 1997Date of Patent: August 1, 2000Assignee: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Kazuyori Yoshimi, Yasuhiko Haneda
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Patent number: 6083649Abstract: A method of making a color filter includes the steps of bringing a color film sheet provided with a heat-fusible color dye layer into close contact with a support, and heating the color film sheet to transfer the color dye layer onto the support. The color film sheet further includes a light-heat conversion layer and a base film deposited under the color dye layer, and a separating layer provided between the base film and the color dye layer. Alternatively, the color film sheet further includes a base film and a light-heat conversion layer deposited under the color dye layer, and a stress-relieving layer provided between the base film and the color dye layer.Type: GrantFiled: October 23, 1998Date of Patent: July 4, 2000Assignee: Alps Electric Co., Ltd.Inventors: Naoki Takeshita, Kaoru Ikeda, Yuzo Hayashi
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Patent number: 5744547Abstract: A process for producing vinyl acetate polymers comprises, after polymerization of at least one monomer comprising vinyl acetate, adding a conjugated polyene having a boiling point of at least 20.degree. C. Saponified products of the vinyl acetate polymers obtained by this process can give molded articles causing little coloring and generation of gel-like agglomerates.Type: GrantFiled: June 25, 1996Date of Patent: April 28, 1998Assignee: Kuraray Co., Ltd.Inventors: Takeshi Moritani, Kaoru Ikeda, Akimasa Aoyama, deceased, Takaharu Kawahara, Yukihiro Ohara, Naoshi Nakagawa, Toshinori Tsugaru
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Patent number: 5741870Abstract: A resin composition comprises an EVOH (A) and a thermoplastic polymer (B) having at least one functional group selected from the group consisting of boronic acid group, borinic acid group and boron-containing groups convertible into boronic acid group or borinic acid group in the presence of water. The composition may further comprise a thermoplastic polymer (C) other than (A) or (B). The resin compositions thus obtained have good compatibility and give molded products having superior transparency and good mechanical properties.Type: GrantFiled: August 2, 1996Date of Patent: April 21, 1998Assignee: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Toshiaki Sato, Kazushige Ishiura
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Patent number: 5571871Abstract: A resin composition comprises an EVOH (A) and a thermoplastic polymer (B) having at least one functional group selected from the group consisting of boronic acid group, borinic acid group and boron-containing groups convertible into boronic acid group or borinic acid group in the presence of water. The composition may further comprise a thermoplastic polymer (C) other than (A) or (B). The resin compositions thus obtained have good compatibility and give molded products having superior transparency and good mechanical properties.Type: GrantFiled: August 14, 1995Date of Patent: November 5, 1996Assignee: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Toshiaki Sato, Kazushige Ishiura