Patents by Inventor Shigeru Ikai
Shigeru Ikai 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: 20140113985Abstract: To provide a process for producing a flexible polyurethane foam having a higher biomass degree than a conventional flexible polyurethane foam and excellent in foam physical properties and its appearance. A polymer-dispersed polyol obtained by polymerizing a vinyl monomer in the presence of the following polyol (a1) derived from a natural fat/oil and/or the following polyoxyalkylene polyol (a2) is used: Polyol (a1) derived from a natural fat/oil: a polyol derived from a natural fat/oil, which is obtained by providing a natural fat/oil with hydroxy groups by chemical reaction, and which has a hydroxy value of from 20 to 250 mgKOH/g and a molecular weight distribution of at least 1.Type: ApplicationFiled: December 20, 2013Publication date: April 24, 2014Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takayuki SASAKI, Yasuyuki Sasao, Naohiro Kumagai, Chitoshi Suzuki, Shigeru Ikai
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Patent number: 8642668Abstract: To provide a process for producing a flexible polyurethane foam having a higher biomass degree than a conventional flexible polyurethane foam and excellent in foam physical properties and its appearance. A polymer-dispersed polyol obtained by polymerizing a vinyl monomer in the presence of the following polyol (a1) derived from a natural fat/oil and/or the following polyoxyalkylene polyol (a2) is used: Polyol (a1) derived from a natural fat/oil: a polyol derived from a natural fat/oil, which is obtained by providing a natural fat/oil with hydroxy groups by chemical reaction, and which has a hydroxy value of from 20 to 250 mgKOH/g and a molecular weight distribution of at least 1.Type: GrantFiled: December 22, 2009Date of Patent: February 4, 2014Assignee: Asahi Glass Company, LimitedInventors: Takayuki Sasaki, Yasuyuki Sasao, Naohiro Kumagai, Chitoshi Suzuki, Shigeru Ikai
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Patent number: 8530602Abstract: A polyether polyol composition comprising: a polyether polyol, a phosphoric acid compound selected from the group consisting of at least one of orthophosphoric acid, polyphosphoric acid, polymetaphosphoric acid, and partial esters thereof in an amount raning from 0.5 to 100 ppm based on the polyether polyol metals derived from a composite metal cyanide complex catalyst in an amount ranging from 1 to 30 ppm based on the polyether polyol; a method for producing this polyether polyol composition; and methods of making polyurethane or isocyanate group-terminated prepolymers.Type: GrantFiled: April 30, 2009Date of Patent: September 10, 2013Assignee: Asahi Glass Company, LimitedInventors: Chitoshi Suzuki, Hiroki Fukuda, Shigeru Ikai
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Patent number: 8354559Abstract: A polyether is synthesized by ring opening polymerization of an alkylene oxide with an initiator having at least one hydroxyl group, in the presence of a double metal cyanide complex catalyst, then a powder of an inorganic adsorbent containing at least 50 vol % of fine particles having a particle size of at most 26 ?m and further containing at least 90 vol % of fine particles having a particle size of at most 44 ?m, is added to the crude polyether, and a metal derived from the above double metal cyanide complex catalyst is adsorbed on the powder, followed by separating the powder from the crude polyether.Type: GrantFiled: March 2, 2009Date of Patent: January 15, 2013Assignee: Asahi Glass Company, LimitedInventors: Chitoshi Suzuki, Tomoyuki Suzuki, Shigeru Ikai
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Patent number: 7786251Abstract: To provide a process for producing a polyester ether poly- or mono-ol having a narrow molecular weight distribution, which is obtained by copolymerizing an initiator having hydroxyl groups with a cyclic ester compound and an alkylene oxide. It is possible to produce a polyester ether poly- or mono-ol having a molecular distribution (Mw/Mn) of from 1.02 to 1.4 by copolymerizing a cyclic ester compound which carbon number is from 3 to 9 and an alkylene oxide which carbon number is from 2 to 20 with an initiator having from 1 to 12 hydroxyl groups and having a number average molecular weight (Mn) of from 18 to 20,000 in the presence of a double-metal cyanide complex catalyst is having tert-butyl alcohol as at least a part of an organic ligand.Type: GrantFiled: February 15, 2008Date of Patent: August 31, 2010Assignee: Asahi Glass Company, LimitedInventors: Shigeki Uemori, Shigeru Ikai, Chitoshi Suzuki
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Publication number: 20100096768Abstract: To provide a process for producing a flexible polyurethane foam having a higher biomass degree than a conventional flexible polyurethane foam and excellent in foam physical properties and its appearance. A polymer-dispersed polyol obtained by polymerizing a vinyl monomer in the presence of the following polyol (a1) derived from a natural fat/oil and/or the following polyoxyalkylene polyol (a2) is used: Polyol (a1) derived from a natural fat/oil: a polyol derived from a natural fat/oil, which is obtained by providing a natural fat/oil with hydroxy groups by chemical reaction, and which has a hydroxy value of from 20 to 250 mgKOH/g and a molecular weight distribution of at least 1.Type: ApplicationFiled: December 22, 2009Publication date: April 22, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takayuki SASAKI, Yasuyuki Sasao, Naohiro Kumagai, Chitoshi Suzuki, Shigeru Ikai
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Publication number: 20100041864Abstract: To provide a process for producing, simply and with high reproducibility, a double metal cyanide complex catalyst having an organic ligand, which has a high catalytic activity, a small particle size and a high particle size uniformity. A process for producing a double metal cyanide complex catalyst having an organic ligand, comprising (a) a step of contacting an aqueous metal halide compound solution and an aqueous transition metal cyanide compound solution in a laminar flow state to obtain a liquid containing a double metal cyanide complex, and (b) a step of mixing the liquid containing a double metal cyanide complex, and an organic ligand, to obtain a dispersion containing a double metal cyanide complex catalyst having an organic ligand.Type: ApplicationFiled: October 8, 2009Publication date: February 18, 2010Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Yoshinobu KADOWAKI, Shigeru Ikai, Yasuyuki Sasao, Kazuhiko Yamada, Kenji Yamada
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Publication number: 20090239964Abstract: To provide a process for producing a flexible polyurethane foam, which can suitably form a flexible polyurethane foam having a good cushioning characteristic by using a raw material derived from a natural fat/oil. The process comprises a step of reacting a polyoxyalkylene polyol (A) containing the first polyoxyalkylene polyol (A1) obtained by ring-opening polymerization of an alkylene oxide (c) with an initiator (b) in the presence of a polymerization catalyst (a), with a polyisocyanate compound (B) in the presence of a catalyst (C) and a blowing agent (D).Type: ApplicationFiled: March 27, 2009Publication date: September 24, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takayuki SASAKI, Naohiro Kumagai, Yasuyuki Sasao, Shigeru Ikai, Chitoshi Suzuki
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Publication number: 20090215935Abstract: To provide a polyether polyol composition, whereby the reaction rate with a polyisocyanate can be controlled, and an isocyanate group-terminated prepolymer excellent particularly in storage stability can be given. A polyether polyol composition comprising a polyether polyol obtained by ring-opening polymerization of an alkylene oxide in the presence of a composite metal cyanide complex catalyst, and a phosphoric acid compound comprising a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and/or a partial ester of such a phosphoric acid, characterized in that the polyether polyol composition contains metals derived from the composite metal cyanide complex catalyst in an amount of from 1 to 30 ppm based on the polyether polyol, and the above phosphoric acid compound in an amount of from 0.5 to 100 ppm based on the polyether polyol.Type: ApplicationFiled: April 30, 2009Publication date: August 27, 2009Applicant: Asahi Glass Company, LimitedInventors: Chitoshi SUZUKI, Hiroki FUKUDA, Shigeru IKAI
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Publication number: 20090203875Abstract: To provide a purification process which makes it possible to reduce the amount of an inorganic adsorbent to be used, shorten the time for separating a polyether and the inorganic adsorbent by filtration, and further reduce the amount of a metal derived from a double metal cyanide complex catalyst in a purified polyether thereby obtained. A polyether is synthesized by ring opening polymerization of an alkylene oxide with an initiator having at least one hydroxyl group, in the presence of a double metal cyanide complex catalyst, then a powder of an inorganic adsorbent containing at least 50 vol % of fine particles having a particle size of at most 26 ?m is and further containing at least 90 vol % of fine particles having a particle size of at most 44 ?m, is added to the above polyether, and a metal derived from the above double metal cyanide complex catalyst is adsorbed on the above powder, followed by separating the above powder from the above polyether.Type: ApplicationFiled: March 2, 2009Publication date: August 13, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Chitoshi Suzuki, Tomoyuki Suzuki, Shigeru Ikai
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Patent number: 7553921Abstract: A polyether polyol composition, the reactivity of which with a polyisocyanate can be controlled, to thereby obtain an isocyanate group-terminated prepolymer having excellent storage stability. A polyether polyol composition comprising a polyether polyol obtained by a ring-opening polymerization of an alkylene oxide in the presence of a composite metal cyanide complex catalyst, and a phosphoric acid compound comprising a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and/ or a partial ester of such a phosphoric acid, wherein the polyether polyol composition contains metals derived from the composite metal cyanide complex catalyst in an amount of from 1 to 30 ppm based on the polyether polyol, and the above phosphoric acid compound in an amount of from 0.5 to 100 ppm based on the polyether polyol.Type: GrantFiled: July 26, 2005Date of Patent: June 30, 2009Assignee: Asahi Glass Company, LimitedInventors: Chitoshi Suzuki, Hiroki Fukuda, Shigeru Ikai
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Publication number: 20080146775Abstract: To provide a process for producing a polyester ether poly- or mono-ol having a narrow molecular weight distribution, which is obtained by copolymerizing an initiator having hydroxyl groups with a cyclic ester compound and an alkylene oxide. It is possible to produce a polyester ether poly- or mono-ol having a molecular distribution (Mw/Mn) of from 1.02 to 1.4 by copolymerizing a cyclic ester compound which carbon number is from 3 to 9 and an alkylene oxide which carbon number is from 2 to 20 with an initiator having from 1 to 12 hydroxyl groups and having a number average molecular weight (Mn) of from 18 to 20,000 in the presence of a double-metal cyanide complex catalyst is having tert-butyl alcohol as at least a part of an organic ligand.Type: ApplicationFiled: February 15, 2008Publication date: June 19, 2008Applicant: Asahi Glass Company, LimitedInventors: Shigeki UEMORI, Shigeru Ikai, Chitoshi Suzuki
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Patent number: 7169956Abstract: Provided is a double metal cyanide complex catalyst with a high activity which is readily produced on an industrial scale. The double metal cyanide complex catalyst is of a fine particle form and contains t-butyl alcohol or, t-butyl alcohol and another organic compound as an organic ligand. The catalyst of the fine particle form has a volume-average particle size in a range of from 3 to 20 ?m, based on measurement by a light scattering method for measuring fine particles having particle sizes of at least 0.15 ?m. A particle content of the catalyst in a particle size range of at least 0.15 ?m and at most 1 ?m is less than 5% by volume, and a particle content of the catalyst over a particles size of 1 ?m is in a range of more than 95% and at most 100% by volume.Type: GrantFiled: August 26, 2005Date of Patent: January 30, 2007Assignee: Asahi Glass Company, LimitedInventors: Chitoshi Suzuki, Hiroki Fukuda, Yoshinori Toyota, Shigeru Ikai, Hideo Sakurai
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Patent number: 7012164Abstract: A method for precisely producing a polyether having a relatively high molecular weight by means of a double metal cyanide complex catalyst is provided. A method for continuously producing a polyether, which comprises ring opening addition polymerization of an alkylene oxide in the presence of a double metal cyanide complex catalyst, wherein substantially no vapor phase part is present in a reactor.Type: GrantFiled: July 21, 2004Date of Patent: March 14, 2006Assignee: Asahi Glass Company, LimitedInventors: Kazuhiko Yamada, Nobuyuki Kasahara, Yoshinori Toyota, Chitoshi Suzuki, Shigeru Ikai, Hiroshi Hatano
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Publication number: 20060004233Abstract: Provided is a double metal cyanide complex catalyst with a high activity which is readily produced on an industrial scale. The double metal cyanide complex catalyst is of a fine particle form and contains t-butyl alcohol or, t-butyl alcohol and another organic compound as an organic ligand. The catalyst of the fine particle form has a volume-average particle size in a range of from 3 to 20 ?m, based on measurement by a light scattering method for measuring fine particles having particle sizes of at least 0.15 ?m. A particle content of the catalyst in a particle size range of at least 0.15 ?m and at most 1 ?m is less than 5% by volume, and a particle content of the catalyst over a particles size of 1 ?m is in a range of more than 95% and at most 100% by volume.Type: ApplicationFiled: August 26, 2005Publication date: January 5, 2006Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Chitoshi Suzuki, Hiroki Fukuda, Yoshinori Toyota, Shigeru Ikai, Hideo Sakurai
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Publication number: 20050267279Abstract: To provide a polyether polyol composition, whereby the reaction rate with a polyisocyanate can be controlled, and an isocyanate group-terminated prepolymer excellent particularly in storage stability can be given. A polyether polyol composition comprising a polyether polyol obtained by ring-opening polymerization of an alkylene oxide in the presence of a composite metal cyanide complex catalyst, and a phosphoric acid compound comprising a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and/or a partial ester of such a phosphoric acid, characterized in that the polyether polyol composition contains metals derived from the composite metal cyanide complex catalyst in an amount of from 1 to 30 ppm based on the polyether polyol, and the above phosphoric acid compound in an amount of from 0.5 to 100 ppm based on the polyether polyol.Type: ApplicationFiled: July 26, 2005Publication date: December 1, 2005Applicant: Asahi Glass Company, LimitedInventors: Chitoshi Suzuki, Hiroki Fukuda, Shigeru Ikai
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Publication number: 20040260056Abstract: A method for precisely producing a polyether having a relatively high molecular weight by means of a double metal cyanide complex catalyst is provided. A method for continuously producing a polyether, which comprises ring opening addition polymerization of an alkylene oxide in the presence of a double metal cyanide complex catalyst, wherein substantially no vapor phase part is present in a reactor.Type: ApplicationFiled: July 21, 2004Publication date: December 23, 2004Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kazuhiko Yamada, Nobuyuki Kasahara, Yoshinori Toyota, Chitoshi Suzuki, Shigeru Ikai, Hiroshi Hatano
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Patent number: 6627576Abstract: A process for producing a double metal cyanide complex catalyst for ring opening polymerization of alkylene oxide, which comprises subjecting a substantially crystalline double metal cyanide compound to a contact treatment by heating at from 45 to 125° C. with an aqueous solution containing an organic ligand and a metal salt, and then separating the resulting solid from the obtained slurry.Type: GrantFiled: August 28, 2002Date of Patent: September 30, 2003Assignee: Asahi Glass Company, LimitedInventors: Kayoko Sugiyama, Shigeru Ikai
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Publication number: 20030100444Abstract: A process for producing a double metal cyanide complex catalyst for ring opening polymerization of alkylene oxide, which comprises subjecting a substantially crystalline double metal cyanide compound to a contact treatment by heating at from 45 to 125° C. with an aqueous solution containing an organic ligand and a metal salt, and then separating the resulting solid from the obtained slurry.Type: ApplicationFiled: August 28, 2002Publication date: May 29, 2003Applicant: Asahi Glass Company, LimitedInventors: Kayoko Sugiyama, Shigeru Ikai
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Patent number: 6376628Abstract: A method for preparing an &agr;-olefin polymer comprising the step of polymerizing or copolymerizing an &agr;-olefin in the presence of a catalyst containing a solid catalyst constituent (A) which contains magnesium, titanium, a halogen element and an electron donor, an organoaluminum compound constituent (B), an organosilicon compound constituent (C) represented by the following general formula (1); and an organosilicon compound constituent (D) represented by the following general formulas (2) or (3) to prepare an &agr;-olefin polymer RnSi(OR)4−n (1) wherein R is a hydrocarbon group having 1 to 8 carbon atoms, n is integer of 1 or 2; wherein R1 is a hydrocarbon group having 1 to 8 carbon atoms, R2 is a hydrocarbon group having 1 to 8 carbon atoms, a hydrocarbylamino group having 2 to 24 carbon atoms, or a hydrocarbylalkoxy group having 1 to 24 carbon atoms, R3N is a polycyclic amino group having 7 to 40 carbon atoms, wherein the carbon atoms and the nitrogen atom form a cType: GrantFiled: May 19, 1999Date of Patent: April 23, 2002Assignee: Grand Polymer Co., Ltd.Inventors: Shigeru Ikai, Hiroyuki Ikeuchi, Yasuhisa Sakakibara, Hiroshi Satoh