Patents by Inventor Shoji Furuta
Shoji Furuta 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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Publication number: 20140171697Abstract: A process for producing a fluoroalkyl iodide as a telomer Rf(CF2CF2)nI (wherein Rf is a C1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula RfI (wherein Rf is as defined above) as a telogen and tetrafluoroethylene (CF2CF2) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.Type: ApplicationFiled: December 11, 2013Publication date: June 19, 2014Applicant: Asahi Glass Company, LimitedInventors: Shoji FURUTA, Yusuke SUGAHARA, Keiko NAKASE, Keisuke MORI
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Patent number: 8729321Abstract: A process for producing a fluoroalkyl iodide as a telomer Rf(CF2CF2)nI (wherein Rf is a C1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula RfI (wherein Rf is as defined above) as a telogen and tetrafluoroethylene (CF2CF2) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state is under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.Type: GrantFiled: April 19, 2006Date of Patent: May 20, 2014Assignee: Asahi Glass Company, LimitedInventors: Shoji Furuta, Yu{grave over (s)}uke Sugahara, Keiko Nakase, Keisuke Mori
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Publication number: 20120022286Abstract: To provide a process for safely producing a perfluoroacyl peroxide with good productivity. By supplying a perfluoroacyl halide-containing organic solvent solution, an aqueous solution of hydrogen peroxide or a metal peroxide, and an aqueous basic alkali metal compound solution to a tubular reactor to allow them to react with one another, in a flow rate ratio of, as represented by molar ratio of the compounds in the solutions, from 1.00 to 1.35 of the basic alkali metal compound and from 0.60 to 40 of hydrogen peroxide or the metal peroxide per 1 of the perfluoroacyl halide, the yield of a perfluoroacyl peroxide based on the material perfluoroacyl halide can be remarkably improved as compared with conventional technique.Type: ApplicationFiled: September 29, 2011Publication date: January 26, 2012Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Katsuya Ueno, Toshiyuki Tanaka, Mayako Takahashi, Kazuhiko Yamada, Fusaaki Takeo, Shoji Furuta
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Patent number: 7723439Abstract: A process for producing a polyfluoroalkyl (meth)acrylate, which comprises isolating, from a reaction mixture containing a polyfluoroalkyl (meth)acrylate obtained by reacting a polyfluoroalkyl iodide of the formula CnF2n+1(CH2)mI (wherein n is an integer of from 2 to 7, and m is an integer of from 1 to 4) with a metal (meth)acrylate in tert-butanol, said polyfluoroalkyl (meth)acrylate by the following steps (1) to (3): (1) a step of taking out a crude liquid from the reaction mixture by solid-liquid separation; (2) a step of distilling the crude liquid to separate it into compound group A of compounds having a lower boiling point than the polyfluoroalkyl (meth)acrylate and compound group B of the polyfluoroalkyl (meth)acrylate and compounds having a higher boiling point than the polyfluoroalkyl (meth)acrylate; and (3) a step of distilling and purifying the polyfluoroalkyl (meth)acrylate from the compound group B in the presence of a polymerization inhibitor.Type: GrantFiled: January 8, 2009Date of Patent: May 25, 2010Assignee: Asahi Glass Company, LimitedInventors: Shoji Furuta, Taiki Hoshino, Ryuji Seki
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Publication number: 20090118433Abstract: A process for producing a polyfluoroalkyl (meth)acrylate, which comprises isolating, from a reaction mixture containing a polyfluoroalkyl (meth)acrylate obtained by reacting a polyfluoroalkyl iodide of the formula CnF2n+1(CH2)mI (wherein n is an integer of from 2 to 7, and m is an integer of from 1 to 4) with a metal (meth)acrylate in tert-butanol, said polyfluoroalkyl (meth)acrylate by the following steps (1) to (3): (1) a step of taking out a crude liquid from the reaction mixture by solid-liquid separation; (2) a step of distilling the crude liquid to separate it into compound group A of compounds having a lower boiling point than the polyfluoroalkyl (meth)acrylate and compound group B of the polyfluoroalkyl (meth)acrylate and compounds having a higher boiling point than the polyfluoroalkyl (meth)acrylate; and (3) a step of distilling and purifying the polyfluoroalkyl (meth)acrylate from the compound group B in the presence of a polymerization inhibitor.Type: ApplicationFiled: January 8, 2009Publication date: May 7, 2009Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Shoji FURUTA, Taiki Hoshino, Ryuji Seki
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Publication number: 20090085001Abstract: To provide a liquid repellent composition which is excellent in liquid repellency and durability and an article having a liquid repelling film. A liquid repellent composition comprising a copolymer (I) and a copolymer (II), characterized in that the copolymer (I) containing from 65 to 95 mass % of a polymerized unit (a) (referred to as “[a1]”) and from 1 to 30 mass % of a polymerized unit (b); and the copolymer (II) containing from 25 to 80 mass % of a polymerized unit (a) (referred to as “[a2]”) and from 1 to 50 mass % of a polymerized unit (c) are contained in an amount of the copolymer (I)/the copolymer (II)=10/90 to 95/5 (mass ratio), and [a1]?[a2]?10 (mass %).Type: ApplicationFiled: September 18, 2008Publication date: April 2, 2009Applicant: Asahi Glass Company, LimitedInventors: Shoji FURUTA, Minako Shimada, Kyouichi Kaneko, Kazunori Sugiyama
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Publication number: 20070249876Abstract: A process for producing a fluoroalkyl iodide as a telomer Rf(CF2CF2)nI (wherein Rf is a C1-10 fluoroalkyl group, and n is an integer of from 1 to 6) by telomerization from a fluoroalkyl iodide represented by the formula RfI (wherein Rf is as defined above) as a telogen and tetrafluoroethylene (CF2CF2) as a taxogen, which comprises a liquid phase telomerization step of supplying a homogeneous liquid mixture of the telogen and the taxogen from the lower portion of a tubular reactor, moving the mixture from the lower portion towards the upper portion of the reactor in the presence of a radical initiator over a retention time of at least 5 minutes while the reaction system is kept in a liquid phase state is under conditions where no gas-liquid separation will take place, so that the taxogen supplied to the reactor is substantially consumed by the reaction in the reactor, and drawing the reaction product from the upper portion of the reactor.Type: ApplicationFiled: April 19, 2006Publication date: October 25, 2007Applicant: Asahi Glass Company, LimitedInventors: Shoji Furuta, Yusuke Sugahara, Keiko Nakase, Keisuke Mori
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Patent number: 6860926Abstract: The following fluorine-containing compound is presented which is capable of providing dry soil resistance when incorporated to a water and oil repellent. Rf1R2OCOCH2CHR1COOR3Rf2 (wherein each of Rf1 and Rf2 which are independent of each other, is a C3-22 polyfluoroalkyl group, R1 is a hydrogen atom or a C1-10 alkyl group, and each of R2 and R3 which are independent of each other, is a C1-4 alkylene group, etc.).Type: GrantFiled: October 15, 2001Date of Patent: March 1, 2005Assignee: Asahi Glass Company, LimitedInventors: Minako Ishikawa, Takashige Maekawa, Ryuji Seki, Shoji Furuta, Kazuya Oharu
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Publication number: 20050004337Abstract: A process for producing a polyfluoroalkyl (meth)acrylate, which comprises isolating, from a reaction mixture containing a polyfluoroalkyl (meth)acrylate obtained by reacting a polyfluoroalkyl iodide of the formula CnF2n+1(CH2)mI (wherein n is an integer of from 2 to 7, and m is an integer of from 1 to 4) with a metal (meth)acrylate in tert-butanol, said polyfluoroalkyl (meth)acrylate by the following steps (1) to (3): (1) a step of taking out a crude liquid from the reaction mixture by solid-liquid separation; (2) a step of distilling the crude liquid to separate it into compound group A of compounds having a lower boiling point than the polyfluoroalkyl (meth)acrylate and compound group B of the polyfluoroalkyl (meth)acrylate and compounds having a higher boiling point than the polyfluoroalkyl (meth)acrylate; and (3) a step of distilling and purifying the polyfluoroalkyl (meth)acrylate from the compound group B in the presence of a polymerization inhibitor.Type: ApplicationFiled: June 3, 2004Publication date: January 6, 2005Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Shoji Furuta, Taiki Hoshino, Ryuji Seki
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Patent number: 6720371Abstract: A water repellent and oil resistant composition capable of imparting excellent water repellency and oil resistance to paper even under a condition of drying at a low temperature for a short time, is provided. The composition comprising a fluorocopolymer (A) obtained by polymerizing a polyfluoroalkyl group-containing (meth)acrylate, vinylidene chloride and a compound of the formula [CH2═C(R)COO—CH2—CH(OH)CH2N+(CH3)3·X− (R: a hydrogen atom or a methyl group, and X−: a counter ion)] or the like by means of a lipophilic polymerization initiator (E) having a solubility of less than 3 g in 100 g of water, a non-fluorine surfactant (B), a medium (C) and a water-soluble polymer (D) (a polyacrylamide, a polyvinyl alcohol or starch).Type: GrantFiled: June 10, 2002Date of Patent: April 13, 2004Assignee: Asahi Glass Company, LimitedInventors: Shoji Furuta, Ryuji Seki, Hiroshi Funaki
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Publication number: 20030040568Abstract: A water repellent and oil resistant composition capable of imparting excellent water repellency and oil resistance to paper even under a condition of drying at a low temperature for a short time, is provided.Type: ApplicationFiled: June 10, 2002Publication date: February 27, 2003Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Shoji Furuta, Ryuji Seki, Hiroshi Funaki
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Publication number: 20020060304Abstract: The following fluorine-containing compound is presented which is capable of providing dry soil resistance when incorporated to a water and oil repellent.Type: ApplicationFiled: October 15, 2001Publication date: May 23, 2002Applicant: Asahi Glass Company, LimitedInventors: Minako Ishikawa, Takashige Maekawa, Ryuji Seki, Shoji Furuta, Kazuya Oharu