Patents by Inventor Kazuhiro Kurosaki

Kazuhiro Kurosaki 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).

  • Patent number: 9452575
    Abstract: The invention provides novel processes for producing in-mold labeled containers and the containers produced using such processes. The processes involve setting a multilayered label having an oxygen barrier layer into a mold and injecting a melted resin suitable for forming a container into the mold. The process forms a container with an oxygen barrier layer. In preferred embodiments, the multilayered label has at least an oxygen absorbing resin layer containing ethylene-vinyl alcohol copolymer and an oxygen absorbent and the container is retortable.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: September 27, 2016
    Assignees: Nestec S.A., Kuraray Co. Ltd.
    Inventors: Yukihiro Urushidani, Kazuhiro Kurosaki, Shinji Tai, Masakazu Nakaya
  • Patent number: 9120252
    Abstract: A shaped article including a modified ethylene-vinyl alcohol copolymer (C), wherein the modified ethylene-vinyl alcohol copolymer (C) is a product obtained by modifying an unmodified ethylene-vinyl alcohol copolymer (A) with an epoxy compound (B) having a double bond and has a degree of modification with the epoxy compound (B) of 0.1 to 10 mol % based on the monomer units of the ethylene-vinyl alcohol copolymer (A), and at least a part of the modified ethylene-vinyl alcohol copolymer (C) is crosslinked, and the gel fraction of the shaped article is 3% by weight or more. Thereby, a shaped article which contains almost no harmful crosslinking agent and which is excellent in hot water resistance, heat resistance and a gas barrier property is provided.
    Type: Grant
    Filed: April 17, 2007
    Date of Patent: September 1, 2015
    Assignee: Kuraray Co., Ltd.
    Inventors: Kaoru Ikeda, Masakazu Nakaya, Kazuhiro Kurosaki, Tomoyuki Watanabe
  • Patent number: 8617678
    Abstract: Providing a crosslinkable composition and a crosslinking agent is objected to, which are capable forming a crosslinked product that is superior in retort resistance, with suppressed bleeding out from the crosslinked product, and that has favorable interlayer adhesiveness when formed into a multilayered structure crosslinked product. The present invention provides a crosslinkable composition containing (A) a polymer having an SP value of no less than 9.5 (cal/cm3)1/2 and no greater than 16.5 (cal/cm3)1/2, and (B) a crosslinking agent having one or more polar groups that include an oxygen atom and a nitrogen atom not constituting an aromatic ring, and two or more polymerizable groups. The difference between the SP value of the polymer (A) and the SP value of the crosslinking agent (B) is preferably no greater than 2 (cal/cm3)1/2, and more preferably no greater than 1 (cal/cm3)1/2. A decomposition temperature of the crosslinking agent (B) is preferably no less than 240° C.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: December 31, 2013
    Assignee: Kuraray Co., Ltd.
    Inventors: Kaoru Ikeda, Kazuhiro Kurosaki
  • Publication number: 20130264743
    Abstract: The invention provides novel processes for producing in-mold labeled containers and the containers produced using such processes. The processes involve setting a multilayered label having an oxygen barrier layer into a mold and injecting a melted resin suitable for forming a container into the mold. The process forms a container with an oxygen barrier layer. In preferred embodiments, the multilayered label has at least an oxygen absorbing resin layer containing ethylene-vinyl alcohol copolymer and an oxygen absorbent and the container is retortable.
    Type: Application
    Filed: July 5, 2011
    Publication date: October 10, 2013
    Applicants: KURARAY CO., LTD., NESTEC S.A.
    Inventors: Yukihiro Urushidani, Kazuhiro Kurosaki, Shinji Tai, Masakazu Nakaya
  • Publication number: 20130029070
    Abstract: Providing a crosslinkable composition and a crosslinking agent is objected to, which are capable forming a crosslinked product that is superior in retort resistance, with suppressed bleeding out from the crosslinked product, and that has favorable interlayer adhesiveness when formed into a multilayered structure crosslinked product. The present invention provides a crosslinkable composition containing (A) a polymer having an SP value of no less than 9.5 (cal/cm3)1/2 and no greater than 16.5 (cal/cm3)1/2, and (B) a crosslinking agent having one or more polar groups that include an oxygen atom and a nitrogen atom not constituting an aromatic ring, and two or more polymerizable groups. The difference between the SP value of the polymer (A) and the SP value of the crosslinking agent (B) is preferably no greater than 2 (cal/cm3)1/2, and more preferably no greater than 1 (cal/cm3)1/2. A decomposition temperature of the crosslinking agent (B) is preferably no less than 240° C.
    Type: Application
    Filed: March 10, 2011
    Publication date: January 31, 2013
    Applicant: KURARAY CO., LTD.
    Inventors: Kaoru Ikeda, Kazuhiro Kurosaki
  • Publication number: 20110097527
    Abstract: A shaped article including a modified ethylene-vinyl alcohol copolymer (C), wherein the modified ethylene-vinyl alcohol copolymer (C) is a product obtained by modifying an unmodified ethylene-vinyl alcohol copolymer (A) with an epoxy compound (B) having a double bond and has a degree of modification with the epoxy compound (B) of 0.1 to 10 mol % based on the monomer units of the ethylene-vinyl alcohol copolymer (A), and at least a part of the modified ethylene-vinyl alcohol copolymer (C) is crosslinked, and the gel fraction of the shaped article is 3% by weight or more. Thereby, a shaped article which contains almost no harmful crosslinking agent and which is excellent in hot water resistance, heat resistance and a gas barrier property is provided.
    Type: Application
    Filed: April 17, 2007
    Publication date: April 28, 2011
    Applicant: Kuraray Co., Ltd
    Inventors: Kaoru Ikeda, Masakazu Nakaya, Kazuhiro Kurosaki, Tomoyuki Watanabe
  • Patent number: 7893145
    Abstract: The present invention provides an oxygen-absorbing resin composition containing a thermoplastic resin (A) having carbon-carbon double bonds substantially only in the main chain and a transition metal salt (B), and the oxygen absorption amount of 1 mol of carbon-carbon double bond of the thermoplastic resin (A) being 1.6 mols or more.
    Type: Grant
    Filed: April 27, 2007
    Date of Patent: February 22, 2011
    Assignee: Kuraray Co., Ltd.
    Inventors: Yasutaka Inubushi, Tatsuhiko Hayashibara, Hideharu Iwasaki, Kazuhiro Kurosaki, Emi Yatagai, Tomoyuki Watanabe, Mie Kanehara
  • Publication number: 20090169902
    Abstract: The present invention provides an oxygen-absorbing resin composition containing a thermoplastic resin (A) having carbon-carbon double bonds substantially only in the main chain and a transition metal salt (B), and the oxygen absorption amount of 1 mol of carbon-carbon double bond of the thermoplastic resin (A) being 1.6 mols or more.
    Type: Application
    Filed: April 27, 2007
    Publication date: July 2, 2009
    Inventors: Yasutaka Inubushi, Tatsuhiko Hayashibara, Hideharu Iwasaki, Kazuhiro Kurosaki, Emi Yatagai, Tomoyuki Watanabe, Mie Kanehara