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).
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Patent number: 9382406Abstract: 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: GrantFiled: February 27, 2014Date of Patent: July 5, 2016Assignee: ADEKA CORPORATIONInventors: Ryusuke Mitamura, Tadashi Sengoku, Kazumasa Tanaka
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Publication number: 20160017126Abstract: 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: ApplicationFiled: February 27, 2014Publication date: January 21, 2016Applicant: ADEKA CORPORATIONInventors: Ryusuke MITAMURA, Tadashi SENGOKU, Kazumasa TANAKA
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Patent number: 9187615Abstract: 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: GrantFiled: July 29, 2011Date of Patent: November 17, 2015Assignee: ADEKA CORPORATIONInventors: Keiichi Odagiri, Tadashi Sengoku
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Publication number: 20140066559Abstract: 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: ApplicationFiled: April 26, 2012Publication date: March 6, 2014Inventors: Hiroki Tairabune, Tadashi Sengoku, Masumi Mizu
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Patent number: 8598259Abstract: 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: GrantFiled: September 17, 2009Date of Patent: December 3, 2013Assignee: Adeka CorporationInventors: Keiichi Odagiri, Tadashi Sengoku, Taro Mitsudera
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Publication number: 20130317157Abstract: 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: ApplicationFiled: December 28, 2011Publication date: November 28, 2013Applicant: ADEKA CORPORATIONInventors: Tadashi Sengoku, Kenji Kajiwara, Yohei Harada, Masumi Mizu
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Publication number: 20130150513Abstract: 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: ApplicationFiled: July 29, 2011Publication date: June 13, 2013Applicant: ADEKA CORPORATIONInventors: Keiichi Odagiri, Tadashi Sengoku
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Publication number: 20130131227Abstract: 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: ApplicationFiled: June 14, 2011Publication date: May 23, 2013Applicant: ADEKA CORPORATIONInventors: Keiichi Odagiri, Tadashi Sengoku
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Publication number: 20120316274Abstract: 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: ApplicationFiled: February 15, 2011Publication date: December 13, 2012Applicant: ADEKA CORPORATIONInventors: Keiichi Odagiri, Tadashi Sengoku
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Patent number: 8314166Abstract: 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: GrantFiled: February 12, 2008Date of Patent: November 20, 2012Assignee: Adeka CorporationInventors: Taro Mitsudera, Tadashi Sengoku, Yutaka Yonezawa
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Publication number: 20120149809Abstract: 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: ApplicationFiled: August 10, 2010Publication date: June 14, 2012Applicant: Adeka CorporationInventors: Keiichi Odagiri, Tadashi Sengoku
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Publication number: 20110201741Abstract: 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: ApplicationFiled: September 17, 2009Publication date: August 18, 2011Applicant: ADEKA CORPORATIONInventors: Keiichi Odagiri, Tadashi Sengoku, Taro Mitsudera
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Patent number: D660946Type: GrantFiled: December 28, 2011Date of Patent: May 29, 2012Assignee: Sengoku Co., Ltd.Inventors: Tadashi Sengoku, Takehira Sengoku
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Patent number: D863520Type: GrantFiled: April 24, 2018Date of Patent: October 15, 2019Assignee: SENGOKU WORKS, LTD.Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
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Patent number: D925964Type: GrantFiled: October 2, 2019Date of Patent: July 27, 2021Assignee: SENGOKU WORKS, LTD.Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
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Patent number: D968153Type: GrantFiled: June 24, 2021Date of Patent: November 1, 2022Assignee: SENGOKU WORKS, LTD.Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
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Patent number: D981542Type: GrantFiled: June 30, 2021Date of Patent: March 21, 2023Assignee: SENGOKU WORKS, LTD.Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
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Patent number: D1002259Type: GrantFiled: January 19, 2022Date of Patent: October 24, 2023Assignee: SENGOKU WORKS, LTD.Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
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Patent number: D1004356Type: GrantFiled: January 19, 2022Date of Patent: November 14, 2023Assignee: SENGOKU WORKS, LTD.Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota
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Patent number: D1007927Type: GrantFiled: January 6, 2022Date of Patent: December 19, 2023Assignee: SENGOKU WORKS, LTD.Inventors: Tadashi Sengoku, Takehira Sengoku, Akihiko Shirota