Patents by Inventor Yoshinori Toyota
Yoshinori Toyota 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: 8623933Abstract: A process for producing a polyether polyol which can form low viscosity rigid foamed synthetic resins excellent in strength, dimensional stability and flame retardancy, can give a low viscosity polyol system solution containing water instead of HFCs as a blowing agent with good miscibility with isocyanate compounds and can form good rigid foamed synthetic resins by spraying, which polyether polyol is produced by reacting a phenol component (molar ratio 1) selected from phenol and phenol derivatives having a hydrogen atom at one or more ortho-positions to the phenolic hydroxyl group, an aldehyde component (molar ratio 0.3 to 0.9) selected from formaldehyde and acetoaldehyde and an alkanolamine component (molar ratio 1.5 to 3.5) selected from monoethanolamine, diethanolamine and 1-amino-2-propanol and then adding an alkylene oxide to the resulting reaction product.Type: GrantFiled: December 15, 2011Date of Patent: January 7, 2014Assignee: Asahi Glass Company, LimitedInventors: Katsuhiko Shimizu, Tomohiro Hayashi, Hiroshi Wada, Yoshinori Toyota
-
Patent number: 8507036Abstract: To provide a process capable of producing a light-weight rigid open-cell foam by a spraying method using mainly or solely water as a blowing agent, wherein a polyol system liquid is excellent in storage stability even when the blowing agent is used in a large amount, and the foam is excellent in dimensional stability without sagging and capable of forming a uniform thermal insulation layer having an excellent appearance for the purpose of constructing a whole constructions.Type: GrantFiled: June 18, 2012Date of Patent: August 13, 2013Assignee: Asahi Glass Company, LimitedInventors: Katsuhiko Shimizu, Hiroshi Wada, Yoshinori Toyota
-
Patent number: 8324289Abstract: A flexible polyurethane foam excellent in the vibration characteristics and the load-deflection characteristics, a process for producing the flexible polyurethane foam stably and inexpensively, and a seat for an automobile excellent in posture-stability performance and supported feeling with little bottom-hitting feeling, are provided. When a polyoxyalkylene polyol and a polyisocyanate compound are reacted in the presence of a urethane-forming catalyst, a blowing agent and a foam stabilizer, a predetermined amount of a compound of the following formula (1) is used: wherein the average of n is from 13 to 2,100.Type: GrantFiled: May 23, 2007Date of Patent: December 4, 2012Assignee: Asahi Glass Company, LimitedInventors: Takayuki Sasaki, Takashi Ito, Yoshinori Toyota, Akio Horie
-
Publication number: 20120251727Abstract: To provide a process capable of producing a light-weight rigid open-cell foam by a spraying method using mainly or solely water as a blowing agent, wherein a polyol system liquid is excellent in storage stability even when the blowing agent is used in a large amount, and the foam is excellent in dimensional stability without sagging and capable of forming a uniform thermal insulation layer having an excellent appearance for the purpose of constructing a whole constructions.Type: ApplicationFiled: June 18, 2012Publication date: October 4, 2012Applicant: Asahi Glass Company, LimitedInventors: Katsuhiko Shimizu, Hiroshi Wada, Yoshinori Toyota
-
Publication number: 20120088851Abstract: Provided is a process for producing a polyether polyol which can form low viscosity rigid foamed synthetic resins excellent in strength, dimensional stability and flame retardancy, can give a low viscosity polyol system solution containing water instead of HFCs as a blowing agent with good miscibility with isocyanate compounds and can form good rigid foamed synthetic resins by spraying. A polyether polyol (A) is produced by reacting a phenol component (molar ratio 1) selected from phenol and phenol derivatives having a hydrogen atom at one or more ortho-positions to the phenolic hydroxyl group, an aldehyde component (molar ratio 0.3 to 0.9) selected from formaldehyde and acetoaldehyde and an alkanolamine component (molar ratio 1.5 to 3.5) selected from monoethanolamine, diethanolamine and 1-amino-2-propanol and then adding an alkylene oxide to the resulting reaction product.Type: ApplicationFiled: December 15, 2011Publication date: April 12, 2012Applicant: Asahi Glass Company, LimitedInventors: Katsuhiko Shimizu, Tomohiro Hayashi, Hiroshi Wada, Yoshinori Toyota
-
Patent number: 7825166Abstract: To provide a flexible polyurethane foam having good vibration characteristics and suitable particularly for a seat for an automobile. A flexible polyurethane foam obtained by reacting a high molecular weight polyoxyalkylene polyol or a polymer-dispersed polyol containing fine polymer particles in the high molecular weight polyoxyalkylene polyol, with a polyisocyanate compound, in the presence of a catalyst, a blowing agent and a foam stabilizer, characterized in that an amino-modified silicone (F) having a silicon atom and a nitrogen atom in its molecule is used in an amount of from 0.00001 to 1 part by mass per 100 parts by mass of all active hydrogen compounds.Type: GrantFiled: November 26, 2007Date of Patent: November 2, 2010Assignee: Asahi Glass Company, LimitedInventors: Takayuki Sasaki, Takashi Ito, Yoshinori Toyota, Naohiro Kumagai
-
Patent number: 7588121Abstract: To provide a flexible polyurethane foam having improved sound absorbing properties in a low frequency region. A process for producing a flexible polyurethane foam which comprises foaming a starting material composition (E) comprising a high molecular weight polyoxyalkylene polyol (A), an organic polyisocyanate compound (B), a blowing agent (C) and a catalyst (D) in a closed mold, characterized in that at least a part of the high molecular weight polyoxyalkylene polyol (A) is a polyoxyalkylene polyol (p) having at least two hydroxyl groups on the average and having a molecular weight (Mc) per hydroxyl group of from 1,800 to 2,800 and a total unsaturation value (USV) of at most 0.08 meq/g, and that the air flowability of a flexible polyurethane foam obtained by foaming the starting material composition (E) in a thickness of 26 mm, is at most 0.085 m3/min.Type: GrantFiled: September 15, 2008Date of Patent: September 15, 2009Assignee: Asahi Glass Company, LimitedInventors: Takayuki Sasaki, Shigeo Hatano, Yoshinori Toyota, Katsuji Kuribayashi
-
Publication number: 20090008595Abstract: To provide a flexible polyurethane foam having improved sound absorbing properties in a low frequency region. A process for producing a flexible polyurethane foam which comprises foaming a starting material composition (E) comprising a high molecular weight polyoxyalkylene polyol (A), an organic polyisocyanate compound (B), a blowing agent (C) and a catalyst (D) in a closed mold, characterized in that at least a part of the high molecular weight polyoxyalkylene polyol (A) is a polyoxyalkylene polyol (p) having at least two hydroxyl groups on the average and having a molecular weight (Mc) per hydroxyl group of from 1,800 to 2,800 and a total unsaturation value (USV) of at most 0.08 meq/g, and that the air flowability of a flexible polyurethane foam obtained by foaming the starting material composition (E) in a thickness of 26 mm, is at most 0.085 m3/min.Type: ApplicationFiled: September 15, 2008Publication date: January 8, 2009Applicant: Asahi Glass Company, LimitedInventors: Takayuki SASAKI, Shigeo Hatano, Yoshinori Toyota, Katsuji Kuribayashi
-
Patent number: 7388036Abstract: A novel flexible polyurethane foam having good vibration characteristics and being excellent in occupant posture stability, is provided. A flexible polyurethane foam obtainable by reacting a high molecular weight polyoxyalkylene polyol or a polymer-dispersed polyol containing fine polymer particles in the high molecular weight polyoxyalkylene polyol, with a polyisocyanate compound in the presence of a catalyst, a blowing agent and a foam stabilizer, characterized in that as at least a part of the foam stabilizer, the following fluorinated compound (F) is used in an amount of from 0.Type: GrantFiled: May 11, 2006Date of Patent: June 17, 2008Assignees: Asahi Glass Company, Limited, NHK Spring Co., Ltd.Inventors: Takayuki Sasaki, Yoshinori Toyota, Akio Horie, Takashi Ito, Satoru Hashimoto, Kunio Asobe
-
Publication number: 20080081847Abstract: To provide a flexible polyurethane foam having good vibration characteristics and suitable particularly for a seat for an automobile. A flexible polyurethane foam obtained by reacting a high molecular weight polyoxyalkylene polyol or a polymer-dispersed polyol containing fine polymer particles in the high molecular weight polyoxyalkylene polyol, with a polyisocyanate compound, in the presence of a catalyst, a blowing agent and a foam stabilizer, characterized in that an amino-modified silicone (F) having a silicon atom and a nitrogen atom in its molecule is used in an amount of from 0.00001 to 1 part by mass per 100 parts by mass of all active hydrogen compounds.Type: ApplicationFiled: November 26, 2007Publication date: April 3, 2008Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Takayuki SASAKI, Takashi Ito, Yoshinori Toyota, Naohiro Kumagai
-
Publication number: 20070219284Abstract: A flexible polyurethane foam excellent in the vibration characteristics and the load-deflection characteristics, a process for producing the flexible polyurethane foam stably and inexpensively, and a seat for an automobile excellent in posture-stability performance and supported feeling with little bottom-hitting feeling, are provided. When a polyoxyalkylene polyol and a polyisocyanate compound are reacted in the presence of a urethane-forming catalyst, a blowing agent and a foam stabilizer, a predetermined amount of a compound of the following formula (1) is used: wherein the average of n is from 13 to 2,100.Type: ApplicationFiled: May 23, 2007Publication date: September 20, 2007Applicant: ASAHI GLASS CO., LTD.Inventors: Takayuki SASAKI, Takashi Ito, Yoshinori Toyota, Akio Horie
-
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
-
Publication number: 20060205834Abstract: A novel flexible polyurethane foam having good vibration characteristics and being excellent in occupant posture stability, is provided. A flexible polyurethane foam obtainable by reacting a high molecular weight polyoxyalkylene polyol or a polymer-dispersed polyol containing fine polymer particles in the high molecular weight polyoxyalkylene polyol, with a polyisocyanate compound in the presence of a catalyst, a blowing agent and a foam stabilizer, characterized in that as at least a part of the foam stabilizer, the following fluorinated compound (F) is used in an amount of from 0.Type: ApplicationFiled: May 11, 2006Publication date: September 14, 2006Applicants: ASAHI GLASS COMPANY, LIMITED, NHK SPRING CO., LTD.Inventors: Takayuki Sasaki, Yoshinori Toyota, Akio Horie, Takashi Ito, Satoru Hashimoto, Kunio Asobe
-
Publication number: 20060160913Abstract: To provide a flexible polyurethane foam having improved sound absorbing properties in a low frequency region. A process for producing a flexible polyurethane foam which comprises foaming a starting material composition (E) comprising a high molecular weight polyoxyalkylene polyol (A), an organic polyisocyanate compound (B), a blowing agent (C) and a catalyst (D) in a closed mold, characterized in that at least a part of the high molecular weight polyoxyalkylene polyol (A) is a polyoxyalkylene polyol (p) having at least two hydroxyl groups on the average and having a molecular weight (Mc) per hydroxyl group of from 1,800 to 2,800 and a total unsaturation value (USV) of at most 0.08 meq/g, and that the air flowability of a flexible polyurethane foam obtained by foaming the starting material composition (E) in a thickness of 26 mm, is at most 0.085 m3/min.Type: ApplicationFiled: March 15, 2006Publication date: July 20, 2006Applicant: Asahi Glass Company, LimitedInventors: Takayuki Sasaki, Shigeo Hatano, Yoshinori Toyota, Katsuji Kuribayashi
-
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
-
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
-
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
-
Patent number: 6815467Abstract: A method for producing a polyoxyalkylene polyol which comprises subjecting propylene oxide and ethylene oxide to ring-opening addition polymerization with an initiator in the presence of a catalyst, wherein the polyoxyalkylene polyol is a polyoxyalkylene polyol obtained by subjecting propylene oxide to ring-opening addition polymerization with an initiator in the presence of a double metal cyanide complex catalyst to form an oxypropylene block chain, subjecting ethylene oxide and propylene oxide to ring-opening addition polymerization randomly to form an oxyalkylene random chain, changing the catalyst and subjecting ethylene oxide to ring-opening addition polymerization in the presence of an alkali metal catalyst to form an oxyethylene block chain, and the polyoxyalkylene polyol is a polyoxyalkylene polyol having a hydroxyl value of from 5 to 56 mgKOH/g, a proportion of an initiator residue of at most 25 mass %, a proportion of the oxypropylene block chain of from 5 to 50 mass %, a total oxyethylene group cType: GrantFiled: July 18, 2002Date of Patent: November 9, 2004Assignee: Asahi Glass Company, LimitedInventors: Yoshinori Toyota, Akio Horie, Hiroshi Wada, Kayoko Sugiyama, Etsuko Akagi
-
Patent number: 6759448Abstract: A flexible polyurethane foam, wherein in a load (N)-deflection (mm) loop obtained by a load test of the flexible polyurethane foam, the X value as calculated from the formula (1) is at most 4.Type: GrantFiled: August 5, 2002Date of Patent: July 6, 2004Assignee: Asahi Glass Company, LimitedInventors: Yoshinori Toyota, Hiroshi Wada, Etsuko Akagi
-
Patent number: 6653362Abstract: A process for producing a flexible polyurethane foam satisfying low resilience, high vibration absorption and high durability, is presented. A mixture comprising from 95 to 50 mass % of a polyoxyalkylene polyol produced by means of an alkali metal catalyst and from 5 to 50 mass % of a polyoxyalkylene polyol produced by means of a double metal cyanide complex catalyst, is reacted with a polyisocyanate compound in the presence of a catalyst and a blowing agent, to produce a flexible polyurethane foam having a resonance frequency of at most 3.7 Hz, a resonance ratio of at most 3.5 and an impact resilience of at most 70%.Type: GrantFiled: October 8, 2002Date of Patent: November 25, 2003Assignee: Asahi Glass Company, LimitedInventors: Yoshinori Toyota, Hiroshi Wada, Takayuki Sasaki, Akio Horie, Kayoko Sugiyama, Hiromitsu Takeyasu