Patents by Inventor Tadashi Sengoku

Tadashi Sengoku 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: 9382406
    Abstract: A vinyl chloride resin composition for transparent products, comprising 100 parts by mass of the vinyl chloride resin, 0.01 to 10 parts by mass of the following component (A), 0.01 to 10 parts by mass of the following component (B) and 0.01 to 3 parts by mass of the following component (C); (A) At least one kind of salt selected from organic acid zinc salts. (B) At least one kind of compound selected from zinc-modified hydrotalcite compounds. (C) At least one kind of compound selected from phosphite ester compounds.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: July 5, 2016
    Assignee: ADEKA CORPORATION
    Inventors: Ryusuke Mitamura, Tadashi Sengoku, Kazumasa Tanaka
  • Publication number: 20160017126
    Abstract: A vinyl chloride resin composition for transparent products, comprising 100 parts by mass of the vinyl chloride resin, 0.01 to 10 parts by mass of the following component (A), 0.01 to 10 parts by mass of the following component (B) and 0.01 to 3 parts by mass of the following component (C); (A) At least one kind of salt selected from organic acid zinc salts. (B) At least one kind of compound selected from zinc-modified hydrotalcite compounds. (C) At least one kind of compound selected from phosphite ester compounds.
    Type: Application
    Filed: February 27, 2014
    Publication date: January 21, 2016
    Applicant: ADEKA CORPORATION
    Inventors: Ryusuke MITAMURA, Tadashi SENGOKU, Kazumasa TANAKA
  • Patent number: 9187615
    Abstract: The present invention provides a vinyl chloride resin composition having an improved resistance to warm-water bleaching. The vinyl chloride resin composition according to the present invention is characterized by comprising, with respect to 100 parts by mass of a vinyl chloride-based resin, 0.01 to 10 parts by mass of (a) a zinc-modified hydrotalcite and 0.01 to 10 parts by mass of (b) an acrylic processing aid having a weight-average molecular weight of 200,000 to 7,000,000. The above-described (a) zinc-modified hydrotalcite is preferably a compound represented by the following Formula (I): Mgx1Znx2Al2(OH)2(x1+x2)+4.CO3.mH2O??(I) (wherein, x1 and x2 each represent a number satisfying the conditions of the following equations; and m represents a real number: 0.1?x2/x1<10, 2?x1+x2<20).
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: November 17, 2015
    Assignee: ADEKA CORPORATION
    Inventors: Keiichi Odagiri, Tadashi Sengoku
  • Publication number: 20140066559
    Abstract: The present invention provides a vinyl chloride resin composition for injection molding, including relative to 100 parts by mass of a vinyl chloride resin, (a) 0.01 to 10 parts by mass of an organic acid calcium salt and/or an organic acid zinc salt, (b) 0.01 to 10 parts by mass of a hydrotalcite compound, (c) 0.01 to 10 parts by mass of a ?-diketone compound, and (d) 0.01 to 10 parts by mass of a polyol mixture, wherein the polyol mixture of component (d) is a polyol mixture composed of pentaerithrytol and condensates thereof; when the degree of condensation of pentaerithritol is represented by n, the combined content of the pentaerithrytol and condensates thereof of n=1 to 3 is 5 to 40% by mass relative to the overall amount of the polyol mixture.
    Type: Application
    Filed: April 26, 2012
    Publication date: March 6, 2014
    Inventors: Hiroki Tairabune, Tadashi Sengoku, Masumi Mizu
  • Patent number: 8598259
    Abstract: The vinyl chloride resin composition for transparent products which does not contain heavy metal stabilizers such as lead, tin and barium, characterized in that (A) 0.001˜10 mass parts of at least one kind of organic acid zinc salts and (B) 0.001˜10 mass parts of at least one kind of zinc-modified hydrotalcite compounds are contained relative to 100 mass parts of vinyl chloride resin; and the transparent molded products produced by molding the said composition.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: December 3, 2013
    Assignee: Adeka Corporation
    Inventors: Keiichi Odagiri, Tadashi Sengoku, Taro Mitsudera
  • Publication number: 20130317157
    Abstract: Disclosed is a vinyl chloride resin composition that is excellent in thermal stability, coloring resistance and processability, free from heavy metal stabilizers such as lead, tin and barium, and thus is suitable for use in building materials, and specifically provides a vinyl chloride resin composition containing (a) an organic acid calcium salt and/or an organic acid zinc salt, (b) calcium acetylacetonate and/or zinc acetylacetonate, (c) a hydrotalcite compound and (d) a polyol mixture in specific contents with respect to a vinyl chloride resin, wherein a polyol mixture having a specific composition is used as the polyol mixture that is the component (d).
    Type: Application
    Filed: December 28, 2011
    Publication date: November 28, 2013
    Applicant: ADEKA CORPORATION
    Inventors: Tadashi Sengoku, Kenji Kajiwara, Yohei Harada, Masumi Mizu
  • Publication number: 20130150513
    Abstract: The present invention provides a vinyl chloride resin composition having an improved resistance to warm-water bleaching. The vinyl chloride resin composition according to the present invention is characterized by comprising, with respect to 100 parts by mass of a vinyl chloride-based resin, 0.01 to 10 parts by mass of (a) a zinc-modified hydrotalcite and 0.01 to 10 parts by mass of (b) an acrylic processing aid having a weight-average molecular weight of 200,000 to 7,000,000. The above-described (a) zinc-modified hydrotalcite is preferably a compound represented by the following Formula (I): Mgx1Znx2Al2(OH)2(x1+x2)+4.CO3.mH2O ??(I) (wherein, x1 and x2 each represent a number satisfying the conditions of the following equations; and m represents a real number: 0.1?x2/x1<10, 2?x1+x2<20).
    Type: Application
    Filed: July 29, 2011
    Publication date: June 13, 2013
    Applicant: ADEKA CORPORATION
    Inventors: Keiichi Odagiri, Tadashi Sengoku
  • Publication number: 20130131227
    Abstract: The present invention provides a vinyl chloride-based resin composition for transparent products which has sufficient transparency as well as improved performances such as initial coloration property and weathering resistance. The vinyl chloride-based resin composition for transparent products is characterized by comprising 0.01 to 0.3 parts by mass of (a) zinc acetylacetonate, 0.1 to 10 parts by mass of (b) a zinc-modified hydrotalcite and 0.1 to 10 parts by mass of (c) an ultraviolet absorber, with respect to 100 parts by mass of a vinyl chloride-based resin. In the vinyl chloride-based resin composition for transparent products according to claim 1, the above-described (b) zinc-modified hydrotalcite is a compound represented by the following Formula (I): Mgx1Znx2Al2(OH)2(X1+X2)+4.CO3.mH2O (??(I) (wherein, x1 and x2 each represent a number satisfying the following equations and m represents a real number: 0.1?x2/x1<10, 2?x1+x2<20).
    Type: Application
    Filed: June 14, 2011
    Publication date: May 23, 2013
    Applicant: ADEKA CORPORATION
    Inventors: Keiichi Odagiri, Tadashi Sengoku
  • Publication number: 20120316274
    Abstract: A vinyl chloride resin composition for transparent products having excellent weather resistance, heat stability and discoloration resistance: comprising (A) 0.001 to 10 mass parts of at least one kind of organic acid zinc salt, (B) 0.001 to 10 mass parts of at least one kind of zinc-modified hydrotalcite compound and (C) 0.01 to 20 mass parts of oxanilide ultraviolet absorber represented by the following general formula (I) relative to 100 mass parts of vinyl chloride resin. R1 in the formula is a hydrogen atom or a straight-chain or branched alkyl group having 1 to 12 carbon atoms, R2 is a straight-chain or branched alkyl group having 1 to 12 carbon atoms, R3 and R4 are each a hydrogen atom or a straight-chain or branched alkyl group having 1 to 18 carbon atoms independently.
    Type: Application
    Filed: February 15, 2011
    Publication date: December 13, 2012
    Applicant: ADEKA CORPORATION
    Inventors: Keiichi Odagiri, Tadashi Sengoku
  • Patent number: 8314166
    Abstract: A waterproof sheet comprising a vinyl chloride-based resin composition which comprises 100 parts by weight of a vinyl chloride-based resin (A), 5 to 100 parts by weight of a plasticizer (B), 0.05 to 5 parts by weight of a hindered amine compound (C) represented by the following general formula (I), and 0.05 to 5 parts by weight of a benzotriazole-based ultraviolet light absorber (D) represented by the general formula (II): wherein R1 and R2 represent each independently an alkyl group having 4 to 20 carbon atoms or a cycloalkyl group having 5 to 6 carbon atoms; wherein R3 represents an alkyl group having 1 to 12 carbon atoms.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: November 20, 2012
    Assignee: Adeka Corporation
    Inventors: Taro Mitsudera, Tadashi Sengoku, Yutaka Yonezawa
  • Publication number: 20120149809
    Abstract: The present invention is the vinyl chloride resin composition for transparent products, characterized in that (A) 0.001˜10 mass parts of at least one kind of organic acid zinc salts, (B) 0.001˜10 mass parts of at least one kind of zinc-modified hydrotalcite compounds and (C) 0.001˜1.0 mass parts of at least one kind selected from a group consisting of mannitol, maltitol and lactitol are contained relative to 100 mass parts of vinyl chloride resin. Transparent molded products of the present invention, obtained by molding the said composition, has characteristics such as thermal resistance, coloring resistance and thermal coloring resistance as well as maintaining high transparency.
    Type: Application
    Filed: August 10, 2010
    Publication date: June 14, 2012
    Applicant: Adeka Corporation
    Inventors: Keiichi Odagiri, Tadashi Sengoku
  • Publication number: 20110201741
    Abstract: The vinyl chloride resin composition for transparent products which does not contain heavy metal stabilizers such as lead, tin and barium, characterized in that (A) 0.001˜10 mass parts of at least one kind of organic acid zinc salts and (B) 0.001˜10 mass parts of at least one kind of zinc-modified hydrotalcite compounds are contained relative to 100 mass parts of vinyl chloride resin; and the transparent molded products produced by molding the said composition.
    Type: Application
    Filed: September 17, 2009
    Publication date: August 18, 2011
    Applicant: ADEKA CORPORATION
    Inventors: Keiichi Odagiri, Tadashi Sengoku, Taro Mitsudera
  • Patent number: D660946
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: May 29, 2012
    Assignee: Sengoku Co., Ltd.
    Inventors: Tadashi Sengoku, Takehira Sengoku
  • Patent number: D863520
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: October 15, 2019
    Assignee: SENGOKU WORKS, LTD.
    Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
  • Patent number: D925964
    Type: Grant
    Filed: October 2, 2019
    Date of Patent: July 27, 2021
    Assignee: SENGOKU WORKS, LTD.
    Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
  • Patent number: D968153
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: November 1, 2022
    Assignee: SENGOKU WORKS, LTD.
    Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
  • Patent number: D981542
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: March 21, 2023
    Assignee: SENGOKU WORKS, LTD.
    Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
  • Patent number: D1002259
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: October 24, 2023
    Assignee: SENGOKU WORKS, LTD.
    Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
  • Patent number: D1004356
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: November 14, 2023
    Assignee: SENGOKU WORKS, LTD.
    Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
  • Patent number: D1007927
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: December 19, 2023
    Assignee: SENGOKU WORKS, LTD.
    Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota