Patents by Inventor Hiroyuki Shindome
Hiroyuki Shindome 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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Patent number: 9346940Abstract: The present invention relates to a resin composition having an ethylene-vinyl alcohol copolymer (EVOH) component and a multi-layered structure containing the resin composition.Type: GrantFiled: June 8, 2009Date of Patent: May 24, 2016Assignee: KURARAY CO., LTD.Inventors: Naokiyo Inomata, Hiroyuki Shindome, Toshio Tuboi, Naoyuki Himi
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Publication number: 20140316039Abstract: The present invention relates to a resin composition having an ethylene-vinyl alcohol copolymer (EVOH) component and a multi-layered structure containing the resin composition.Type: ApplicationFiled: July 7, 2014Publication date: October 23, 2014Applicant: Kuraray Co., Ltd.Inventors: Naokiyo INOMATA, Hiroyuki Shindome, Toshio Tuboi, Naoyuki Himi
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Patent number: 8772392Abstract: A melt-molded article containing an EVOH resin composition of low acetic acid odor and good long run workability is provided.Type: GrantFiled: February 26, 2009Date of Patent: July 8, 2014Assignee: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Noriyuki Kida, Hiroyuki Shindome, Naohiko Uchiumi
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Patent number: 8765854Abstract: An ethylene-vinyl alcohol copolymer resin having low odor of acetic acid and good long-run workability is provided. The ethylene-vinyl alcohol copolymer resin which contains an alkali metal salt (A) and has a very low extractable carboxylate content is obtained by a method including contacting the ethylene-vinyl alcohol copolymer resin with an aqueous solution containing carbon dioxide gas.Type: GrantFiled: February 26, 2009Date of Patent: July 1, 2014Assignee: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Noriyuki Kida, Hiroyuki Shindome, Naohiko Uchiumi
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Patent number: 8137775Abstract: A blow molded container made of an ethylene-vinyl alcohol copolymer resin composition, wherein the composition contains 0.1 to 20 ?mol/g, in terms of alkali metal, of an alkali metal salt (A), 0 to 2 ?mol/g of a carboxylate radical (C1) which is extracted through an immersion treatment in water at 95° C. for 10 hours, and 0 to 40 ?mol/g of a carboxylate radical (C2) which is extracted through an immersion treatment in a 0.05 N aqueous sodium hydroxide solution at 95° C. for 10 hours.Type: GrantFiled: July 22, 2004Date of Patent: March 20, 2012Assignee: Kuraray Co., Ltd.Inventors: Hiroyuki Shindome, Naohiko Uchiumi, Kaoru Ikeda
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Patent number: 8084536Abstract: A resin composition is provided which comprises from 50 to 95% by weight of a modified ethylene-vinyl alcohol copolymer (C) obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monovalent epoxy compound (B) having a molecular weight of 500 or less, and from 5 to 50% by weight of a soft resin (F) that has at least one functional group able to react with a hydroxyl group and has a Young's modulus at 23° C., 50% RH of 500 MPa or less, wherein the soft resin (F) is dispersed with an average particle diameter of 0.1 ?m or less in a matrix of the modified ethylene-vinyl alcohol copolymer (C). This resin composition is excellent in barrier properties and also in flex resistance and impact resistance at low temperature.Type: GrantFiled: January 11, 2006Date of Patent: December 27, 2011Assignee: Kuraray Co., Ltd.Inventors: Kouta Isoyama, Hiroyuki Shindome, Naoki Kataoka, Tomoyuki Watanabe
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Publication number: 20090326124Abstract: An ethylene-vinyl alcohol copolymer resin having low odor of acetic acid and good long-run workability is provided. The ethylene-vinyl alcohol copolymer resin which contains an alkali metal salt (A) and has a very low extractable carboxylate content is obtained by a method including contacting the ethylene-vinyl alcohol copolymer resin with an aqueous solution containing carbon dioxide gas.Type: ApplicationFiled: February 26, 2009Publication date: December 31, 2009Applicant: Kuraray Co., Ltd.Inventors: Kaoru IKEDA, Noriyuki Kida, Hiroyuki Shindome, Naohiko Uchiumi
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Publication number: 20090247679Abstract: The present invention relates to a resin composition having an ethylene-vinyl alcohol copolymer (EVOH) component and a multi-layered structure containing the resin composition.Type: ApplicationFiled: June 8, 2009Publication date: October 1, 2009Applicant: Kuraray Co., Ltd.Inventors: Naokiyo INOMATA, Hiroyuki SHINDOME, Toshio TUBOI, Naoyuki HIMI
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Publication number: 20090215942Abstract: A melt-molded article containing an EVOH resin composition of low acetic acid odor and good long run workability is provided.Type: ApplicationFiled: February 26, 2009Publication date: August 27, 2009Applicant: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Noriyuki Kida, Hiroyuki Shindome, Naohiko Uchiumi
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Patent number: 7524895Abstract: A method for producing an ethylene-vinyl alcohol copolymer resin composition, wherein an ethylene-vinyl alcohol copolymer resin is contacted 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). The present invention can provide an environmentally friendly method for producing an EVOH resin composition, the method releasing no carboxylic acid such as acetic acid to the ambient atmosphere. In addition, the invention can provide an EVOH resin composition which emits less smell and is superior also in long-run workability.Type: GrantFiled: February 6, 2003Date of Patent: April 28, 2009Assignee: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Noriyuki Kida, Hiroyuki Shindome, Naohiko Uchiumi
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Publication number: 20090012236Abstract: A resin composition is provided which comprises from 50 to 95% by weight of a modified ethylene-vinyl alcohol copolymer (C) obtained by reacting an ethylene-vinyl alcohol copolymer (A) with a monovalent epoxy compound (B) having a molecular weight of 500 or less, and from 5 to 50% by weight of a soft resin (F) that has at least one functional group able to react with a hydroxyl group and has a Young's modulus at 23° C., 50% RH of 500 MPa or less, wherein the soft resin (F) is dispersed with an average particle diameter of 0.1 ?m or less in a matrix of the modified ethylene-vinyl alcohol copolymer (C). This resin composition is excellent in barrier properties and also in flex resistance and impact resistance at low temperature.Type: ApplicationFiled: January 11, 2006Publication date: January 8, 2009Applicant: Kuraray Co., Ltd.Inventors: Kouta Isoyama, Hiroyuki Shindome, Naoki Kataoka, Tomoyuki Watanabe
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Publication number: 20080003390Abstract: A multi-layer structure comprising a layer of an ethylene-vinyl alcohol copolymer (A), a layer of a carboxylic acid-modified polyolefin (B), a layer of a thermoplastic resin (C) having a solubility parameter of 11 or less, and a layer of a resin composition (E), wherein the resin composition (E) comprises an ethylene-vinyl alcohol copolymer (A), a carboxylic acid-modified polyolefin (B), a thermoplastic resin (C) and a thermoplastic resin (D) having at least one functional group selected from the group consisting of a boronic acid group and boron-containing groups capable of being converted into a boronic acid group in the presence of water, and the layer of an ethylene-vinyl alcohol copolymer (A) is laminated with the layer of a thermoplastic resin (C) or the layer of a resin composition (E) through the layer of a carboxylic acid-modified polyolefin (B). This provides a multi-layer structure which allows effective reuse of regrind and which is excellent in impact resistance and gas barrier properties.Type: ApplicationFiled: April 27, 2005Publication date: January 3, 2008Inventors: Nahoto Hayashi, Hiroyuki Shindome, Tomoyuki Watanabe, Naoki Kataoka
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Publication number: 20050107507Abstract: A method for producing an ethylene-vinyl alcohol copolymer resin composition, wherein an ethylene-vinyl alcohol copolymer resin is contacted 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). The present invention can provide an environmentally friendly method for producing an EVOH resin composition, the method releasing no carboxylic acid such as acetic acid to the ambient atmosphere. In addition, the invention can provide an EVOH resin composition which emits less smell and is superior also in long-run workability.Type: ApplicationFiled: February 6, 2003Publication date: May 19, 2005Applicant: Kuraray Co., Ltd.Inventors: Kaoru Ikeda, Noriyuki Kida, Hiroyuki Shindome, Naohiko Uchiumi
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Publication number: 20050096419Abstract: Disclosed are a resin composition comprising an ethylene-vinyl alcohol copolymer and a multi-layered structure comprising the resin composition. The resin composition comprises an ethylene-vinyl alcohol copolymer, and is characterized in that, when it is heated in a nitrogen atmosphere at 220° C., its MFR (at 230° C. under a load of 10.9 kg) shows a minimum value within 10 hours after the start of heating it, and shows a maximum value (MFRmax) within 100 hours after showing its minimum value, that it contains from 0.05 to 4 ?mols/g of a carboxylic acid (A), and that it satisfies the following formulae (1) and (2): 0.5?MFRmax/MFR0?45 ??(1) 0.1?(a1)/(A)?1.0 ??(2) wherein MFRmax indicates the maximum value of MFR (at 230° C. under a load of 10.9 kg) of the resin composition heated in a nitrogen atmosphere at 220° C.; MFR0 indicates MFR (at 230° C under a load of 10.Type: ApplicationFiled: December 1, 2004Publication date: May 5, 2005Applicant: Kuraray Co., Ltd.Inventors: Naokiyo Inomata, Hiroyuki Shindome, Toshio Tuboi, Naoyuki Himi
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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: 20030060550Abstract: The present invention relates to a resin composition having an ethylene-vinyl alcohol copolymer (EVOH) component and a multi-layered structure containing the resin composition.Type: ApplicationFiled: October 11, 2002Publication date: March 27, 2003Applicant: KURARAY CO. LTDInventors: Naokiyo Inomata, Hiroyuki Shindome, Toshio Tuboi, Naoyuki Himi
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Patent number: 6485842Abstract: Disclosed are a resin composition comprising an ethylene-vinyl alcohol copolymer and a multi-layered structure comprising the resin composition. The resin composition comprises an ethylene-vinyl alcohol copolymer which contains from 500 to 2000 ppm, in terms of the metal, of an alkali metal salt (A) and from 0.05 to 4.5 &mgr;mols/g of a carboxylic acid (B), where the ratio of the content (&mgr;mol/g) of a carboxylic acid (b1) having a molecular weight of at least 75 and its salt to the total content (&mgr;mol/g) of the carboxylic acid (B) and its salt is at least 0.1; or comprises an ethylene-vinyl alcohol copolymer which contains from 500 to 2000 ppm, in terms of the metal, of an alkali metal salt (A), from 10 to 500 ppm of a carboxylic acid (b2) having a molecular weight of smaller than 75, and from 10 to 500 ppm, in terms of the phosphate radical, of a phosphate compound (C). The resin composition has extremely good adhesiveness, and its moldings have good appearances with few gels and fish eyes.Type: GrantFiled: July 7, 2000Date of Patent: November 26, 2002Assignee: Kuraray Co., Ltd.Inventors: Hiroyuki Shindome, Naokiyo Inomata