Patents by Inventor Yasufumi Beniya
Yasufumi Beniya 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: 9938030Abstract: A method of transporting saponified ethylene-vinyl ester-based copolymer pellets by using a hermetic container including a pressurizing means for applying pressure to the interior of the container, and a transport means for transporting the hermetic container. The method comprises the steps of: inserting the saponified ethylene-vinyl ester-based copolymer pellets into the hermetic container to close the hermetic container; and maintaining the interior of the hermetic container in a state of higher pressure than the ambient atmosphere by using the pressurizing means while the hermetic container is transported to a destination by using the transport means.Type: GrantFiled: February 3, 2015Date of Patent: April 10, 2018Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Yasufumi Beniya, Shinta Miyazumi
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Publication number: 20160176557Abstract: A method of transporting saponified ethylene-vinyl ester-based copolymer pellets by using a hermetic container including a pressurizing means for applying pressure to the interior of the container, and a transport means for transporting the hermetic container. The method comprises the steps of: inserting the saponified ethylene-vinyl ester-based copolymer pellets into the hermetic container to close the hermetic container; and maintaining the interior of the hermetic container in a state of higher pressure than the ambient atmosphere by using the pressurizing means while the hermetic container is transported to a destination by using the transport means.Type: ApplicationFiled: February 3, 2015Publication date: June 23, 2016Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Yasufumi BENIYA, Shinta MIYAZUMI
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Publication number: 20160176558Abstract: There is provided a method of transporting saponified ethylene-vinyl ester-based copolymer pellets comprising maintaining an interior of a hermetic container in a state of higher pressure than ambient atmosphere during a transport of the saponified ethylene-vinyl ester-based copolymer pellets encased in the hermetic container. The method is capable of transporting dry saponified ethylene-vinyl ester-based copolymer pellets in large quantities at one time without the moisture absorption of the pellets in the course of the transport of the pellets.Type: ApplicationFiled: December 18, 2015Publication date: June 23, 2016Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Yasufumi BENIYA, Shinta MIYAZUMI
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Patent number: 9221194Abstract: An ethylene-vinyl alcohol copolymer alcohol solution comprising an ethylene-vinyl alcohol copolymer and an alcohol having a carbon number of not greater than 4 is brought into contact with an aqueous solution of at least one additive selected from a carboxylic compound, a boron compound and a phosphoric compound to replace a part or all of the alcohol with water, whereby an ethylene-vinyl alcohol copolymer composition containing the additive is prepared. This preparation process makes it possible to efficiently replace the alcohol in the ethylene-vinyl alcohol copolymer alcohol solution with water, and homogeneously incorporate the thermal stabilizer in the composition.Type: GrantFiled: December 22, 2008Date of Patent: December 29, 2015Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Keisuke Fujimura, Yasufumi Beniya, Akio Harao, Yoshiharu Nagao, Shinji Okamoto
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Patent number: 9061441Abstract: A method of producing a vinyl alcohol resin having a water content of not higher than 10 wt % by performing a multistage dewatering process by means of a kneading machine. The method permits efficient dewatering of a highly hydrous vinyl alcohol resin to ensure easy production of a lower water content vinyl alcohol resin having a water content of not higher than 10 wt %, thereby reducing production costs.Type: GrantFiled: April 22, 2011Date of Patent: June 23, 2015Assignee: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Keisuke Fujimura, Osamu Hommura, Yasufumi Beniya, Satoshi Matsunuma
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Patent number: 8765037Abstract: An ethylene-vinyl alcohol copolymer (EVOH) composition preparation process is provided, which comprises the steps of: feeding an EVOH alcohol solution into a tower type apparatus, the EVOH alcohol solution comprising 100 parts by weight of an EVOH and not less than 300 parts by weight of an alcohol having a carbon number of not greater than 4; bringing the EVOH alcohol solution into contact with water, and feeding out a part of the alcohol together with water from the apparatus to provide an EVOH water/alcohol mixture solution comprising 100 parts by weight of the EVOH, 10 to 200 parts by weight of the alcohol and 50 to 200 parts by weight of water; bringing the EVOH water/alcohol mixture solution into contact with water in an agitator container with stirring, and feeding out a part or all of the alcohol together with water from the container to provide an EVOH composition comprising 100 parts by weight of the EVOH, less than 10 parts by weight of the alcohol and 20 to 100 parts by weight of water.Type: GrantFiled: December 22, 2008Date of Patent: July 1, 2014Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.Inventors: Keisuke Fujimura, Yasufumi Beniya, Akio Harao, Yoshiharu Nagao, Shinji Okamoto
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Patent number: 8350002Abstract: A process is provided for producing an ethylene/vinyl alcohol copolymer by which impurities such as catalyst residue and by-products and solvent are removed to a high degree. A high-quality, homogeneous product can be efficiently produced by including a washing step including: introducing a paste containing an ethylene/vinyl alcohol copolymer and an alcohol into a washing tank; applying a shear force to the paste to knead the paste while contacting the paste with washing water so that a surface of the paste is repeatedly displaced by an inner part thereof; and discharging the alcohol to an outside of the tank together with the washing water to obtain a water-containing ethylene/vinyl alcohol copolymer composition having a small alcohol content.Type: GrantFiled: October 7, 2010Date of Patent: January 8, 2013Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.Inventors: Keisuke Fujimura, Nobuaki Sato, Satoshi Matsunuma, Yasufumi Beniya
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Patent number: 8283416Abstract: Processes for manufacturing a composition of a solvolysis product of an ethylene-vinyl ester copolymer, which comprises: conducting solvolysis of an ethylene-vinyl ester copolymer (A?) and a modified ethylene-vinyl ester copolymer (B?) comprising a unit derived from a compound represented by the general formula (2) in one system to manufacture the composition of a solvolysis product of an ethylene-vinyl ester copolymer comprising a solvolysis product (A) of the ethylene-vinyl ester copolymer and a solvolysis product (B) of the modified ethylene-vinyl ester copolymer comprising a unit represented by the general formula (1), wherein a ratio of an ethylene content (B?)/(A?) of copolymer (A?) and copolymer (B?) in conducting solvolysis is 1 or more, and a blending ratio (B?)/(A?) of the ethylene-vinyl ester copolymer (A?) and the modified ethylene-vinyl ester copolymer (B?) is from 50/50 to 1/99 by weight:Type: GrantFiled: July 22, 2011Date of Patent: October 9, 2012Assignee: The Nippon Synthetic Chemical Industry Co., Ltd.Inventors: Yasufumi Beniya, Keisuke Fujimura, Akio Harao
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Publication number: 20120172564Abstract: A process is provided for producing an ethylene/vinyl alcohol copolymer by which impurities such as catalyst residue and by-products and solvent are removed to a high degree. A high-quality, homogeneous product can be efficiently produced by including a washing step including: introducing a paste containing an ethylene/vinyl alcohol copolymer and an alcohol into a washing tank; applying a shear force to the paste to knead the paste while contacting the paste with washing water so that a surface of the paste is repeatedly displaced by an inner part thereof; and discharging the alcohol to an outside of the tank together with the washing water to obtain a water-containing ethylene/vinyl alcohol copolymer composition having a small alcohol content.Type: ApplicationFiled: October 7, 2010Publication date: July 5, 2012Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Keisuke Fujimura, Nobuaki Sato, Satoshi Matsunuma, Yasufumi Beniya
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Publication number: 20120022217Abstract: Processes for manufacturing a composition of a solvolysis product of an ethylene-vinyl ester copolymer, which comprises: conducting solvolysis of an ethylene-vinyl ester copolymer (A?) and a modified ethylene-vinyl ester copolymer (B?) comprising a unit derived from a compound represented by the general formula (2) in one system to manufacture the composition of a solvolysis product of an ethylene-vinyl ester copolymer comprising a solvolysis product (A) of the ethylene-vinyl ester copolymer and a solvolysis product (B) of the modified ethylene-vinyl ester copolymer comprising a unit represented by the general formula (1), wherein a ratio of an ethylene content (B?)/(A?) of copolymer (A?) and copolymer (B?) in conducting solvolysis is 1 or more, and a blending ratio (B?)/(A?) of the ethylene-vinyl ester copolymer (A?) and the modified ethylene-vinyl ester copolymer (B?) is from 50/50 to 1/99 by weight:Type: ApplicationFiled: July 22, 2011Publication date: January 26, 2012Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Yasufumi BENIYA, Keisuke FUJIMURA, Akio HARAO
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Publication number: 20110237738Abstract: A method of producing a vinyl alcohol resin having a water content of not higher than 10 wt % by performing a multistage dewatering process by means of a kneading machine. The method permits efficient dewatering of a highly hydrous vinyl alcohol resin to ensure easy production of a lower water content vinyl alcohol resin having a water content of not higher than 10 wt %, thereby reducing production costs.Type: ApplicationFiled: April 22, 2011Publication date: September 29, 2011Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Keisuke FUJIMURA, Osamu Hommura, Yasufumi Beniya, Satoshi Matsunuma
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Publication number: 20110166292Abstract: The present invention provides a composition of a solvolysis product of an ethylene-vinyl ester copolymer excellent in productivity and formability, which has a small absolute value of melting peak, even in the case where two or more kinds of solvolysis products of ethylene-vinyl ester copolymers are blended.Type: ApplicationFiled: December 25, 2008Publication date: July 7, 2011Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Yasufumi Beniya, Keisuke Fujimura, Akio Harao
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Publication number: 20100314791Abstract: An ethylene-vinyl alcohol copolymer (EVOH) composition preparation process is provided, which comprises the steps of: feeding an EVOH alcohol solution into a tower type apparatus, the EVOH alcohol solution comprising 100 parts by weight of an EVOH and not less than 300 parts by weight of an alcohol having a carbon number of not greater than 4; bringing the EVOH alcohol solution into contact with water, and feeding out a part of the alcohol together with water from the apparatus to provide an EVOH water/alcohol mixture solution comprising 100 parts by weight of the EVOH, 10 to 200 parts by weight of the alcohol and 50 to 200 parts by weight of water; bringing the EVOH water/alcohol mixture solution into contact with water in an agitator container with stirring, and feeding out a part or all of the alcohol together with water from the container to provide an EVOH composition comprising 100 parts by weight of the EVOH, less than 10 parts by weight of the alcohol and 20 to 100 parts by weight of water.Type: ApplicationFiled: December 22, 2008Publication date: December 16, 2010Applicant: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.Inventors: Keisuke Fujimura, Yasufumi Beniya, Akio Harao, Yoshiharu Nagao, Shinji Okamoto
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Publication number: 20100289172Abstract: An ethylene-vinyl alcohol copolymer alcohol solution comprising an ethylene-vinyl alcohol copolymer and an alcohol having a carbon number of not greater than 4 is brought into contact with an aqueous solution of at least one additive selected from a carboxylic compound, a boron compound and a phosphoric compound to replace a part or all of the alcohol with water, whereby an ethylene-vinyl alcohol copolymer composition containing the additive is prepared. This preparation process makes it possible to efficiently replace the alcohol in the ethylene-vinyl alcohol copolymer alcohol solution with water, and homogeneously incorporate the thermal stabilizer in the composition.Type: ApplicationFiled: December 22, 2008Publication date: November 18, 2010Inventors: Keisuke Fujimura, Yasufumi Beniya, Akio Harao, Yoshiharu Nagao, Shinji Okamoto