Patents by Inventor Makito Nakamura

Makito Nakamura 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).

  • Publication number: 20210371574
    Abstract: To provide a polyurethane prepolymer whereby a pressure-sensitive adhesive having excellent moisture permeability and also having both low adhesion to skin and high adhesion to a substrate can be obtained, a pressure-sensitive adhesive, an adhesive skin patch, a pressure-sensitive adhesive tape, a wearable device and a wearable device kit. A hydroxy group-terminated polyurethane prepolymer which is obtained by reacting an oxyalkylene polymer A having an average number of hydroxy groups per molecule of from 2.1 to 3, an oxyalkylene polymer B having one hydroxy group per molecule, and a diisocyanate compound, wherein the number average molecular weight of the oxyalkylene polymer B is at least 5,000, and the content of ethylene oxide units in the hydroxy group-terminated polyurethane prepolymer is more than 10 mass %, a pressure-sensitive adhesive, an adhesive skin patch, a pressure-sensitive adhesive tape, a wearable device and a wearable device kit.
    Type: Application
    Filed: August 11, 2021
    Publication date: December 2, 2021
    Applicant: AGC Inc.
    Inventors: Makito NAKAMURA, Haru KAWASAKI, Hitoshi SHIMOMA, Chitoshi SUZUKI, Hiroshi WADA
  • Patent number: 10294390
    Abstract: To provide a coating agent capable of forming a coating layer or film excellent in moisture permeability, flexibility and tensile strength. A coating agent comprising an isocyanate group-containing prepolymer obtainable by reacting a polyol mixture (A) and a polyisocyanate compound (B), wherein the polyol mixture (A) is a mixture of at least two polyoxyalkylene polyols which are different in the number of hydroxy groups or the hydroxy value, and said mixture has an average number of hydroxy groups being from 2.2 to 2.6, a molecular weight per hydroxy group being from 1,500 to 10,000 and an oxyethylene group content being at least 60 mass %.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: May 21, 2019
    Assignee: AGC Inc.
    Inventors: Makito Nakamura, Kaoru Oguro, Tomeyoshi Ohori
  • Publication number: 20150291725
    Abstract: To provide a curable resin composition which is curable at a high curing speed and which is capable of forming a cured product which is flexible and has color unevenness suppressed, and a laminate using such a curable resin composition and a process for its production.
    Type: Application
    Filed: June 1, 2015
    Publication date: October 15, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Makito NAKAMURA, Kaoru OGURO
  • Publication number: 20150057409
    Abstract: To provide a coating agent capable of forming a coating layer or film excellent in moisture permeability, flexibility and tensile strength. A coating agent comprising an isocyanate group-containing prepolymer obtainable by reacting a polyol mixture (A) and a polyisocyanate compound (B), wherein the polyol mixture (A) is a mixture of at least two polyoxyalkylene polyols which are different in the number of hydroxy groups or the hydroxy value, and said mixture has an average number of hydroxy groups being from 2.2 to 2.6, a molecular weight per hydroxy group being from 1,500 to 10,000 and an oxyethylene group content being at least 60 mass %.
    Type: Application
    Filed: November 3, 2014
    Publication date: February 26, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Makito NAKAMURA, Kaoru OGURO, Tomeyoshi OHORI
  • Patent number: 8609768
    Abstract: A hot melt adhesive composition employing a thermoplastic polyurethane, which has a high adhesive strength even under bonding conditions of low temperature and short time or even to nylon cloth, and which has a favorable adhesive strength in a wide temperature range of from room temperature to low temperature. A hot melt adhesive composition comprising a thermoplastic polyurethane (A) having a flow initiation temperature of from 80 to 150° C. and a phenolic hydroxy group-containing compound (B) having phenolic hydroxy groups and having a molecular weight of at least 1,000.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: December 17, 2013
    Assignee: Asahi Glass Company, Limited
    Inventors: Makito Nakamura, Genichirou Enna
  • Publication number: 20120172524
    Abstract: The present invention relates to a reactive hot-melt adhesive agent composition, containing an isocyanate group-terminated urethane prepolymer (P) obtained through a step of reacting a polyol (Z) with a polyisocyanate compound (C), in which the polyol (Z) contains a polyester ether polyol (A) and an aliphatic polyester polyol (B).
    Type: Application
    Filed: March 14, 2012
    Publication date: July 5, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Makito NAKAMURA, Hisashi SATO, Takeaki ARAI
  • Publication number: 20120123043
    Abstract: To provide a hot melt adhesive composition employing a thermoplastic polyurethane, which has a high adhesive strength even under bonding conditions of low temperature and short time or even to nylon cloth, and which has a favorable adhesive strength in a wide temperature range of from room temperature to low temperature. A hot melt adhesive composition comprising a thermoplastic polyurethane (A) having a flow initiation temperature of from 80 to 150° C. and a phenolic hydroxy group-containing compound (B) having phenolic hydroxy groups and having a molecular weight of at least 1,000.
    Type: Application
    Filed: January 24, 2012
    Publication date: May 17, 2012
    Applicant: Asahi Glass Company, Limited
    Inventors: Makito NAKAMURA, Genichirou Enna
  • Patent number: 7834104
    Abstract: An object of the invention is to provide a process for urethane resin production in which the molecular weight of the urethane resin can be easily controlled regardless of the kind of polyisocyanate compound and which can yield a urethane resin for use as a removable pressure-sensitive adhesive usable in extensive applications ranging from a strong-tack region to a slight-tack region.
    Type: Grant
    Filed: August 11, 2008
    Date of Patent: November 16, 2010
    Assignee: Asahi Glass Company, Limited
    Inventors: Makito Nakamura, Hitoshi Shimoma, Hisashi Sato, Yasuhito Adachi
  • Publication number: 20100197857
    Abstract: Provided is a polyurethane for printing ink binders excellent in solubility in a solvent having a low solvency, low viscosity and adhesion to films, and a method for producing the same. A method for producing urethane for printing ink binders, wherein a polyurethane is obtained by reacting a polyol (A), a polyisocyanate compound (B) and a chain extender (C), and the polyol (A) contains a polyesterether polyol (A1) which is obtained by copolymerizing a polycarboxylic acid anhydride (b) and an alkylene oxide (c) to an initiator (a) in the presence of a catalyst (x).
    Type: Application
    Filed: April 9, 2010
    Publication date: August 5, 2010
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Yukio TSUGE, Hisashi Sato, Yuuko Nagasaki, Makito Nakamura, Takeaki Arai
  • Publication number: 20100087593
    Abstract: To present a resin composition comprising a thermoplastic polyurethane which can be melted at a low temperature, is capable of bonding in a short time and is excellent in flexibility; and a hot melt adhesive. A resin composition comprising a thermoplastic polyurethane which has structural units derived from a diol compound (I) containing a polyester ether diol (A) which has an initiator (a), a dicarboxylic acid anhydride (b) and an alkylene oxide (c), a diisocyanate compound (II) and a chain extender (III), wherein ([II]+[III])/([I]+[II]+[III])=0.20 to 0.40 where [I], [II] and [III] are the proportions by mass (mass %) of the structural units derived from the diol compound (I), the diisocyanate compound (II) and the chain extender (III), respectively; the NCO index is from 0.90 to 1.05; and the structural units derived from the dicarboxylic acid anhydride (b) are contained in an amount of from 10 to 50 mass % in the polyester ether diol (A).
    Type: Application
    Filed: December 7, 2009
    Publication date: April 8, 2010
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Makito NAKAMURA, Hisashi Sato, Takeaki Arai
  • Publication number: 20090012258
    Abstract: A process for producing a urethane resin having a low viscosity and usable as a wide range of pressure-sensitive adhesives ranging from a strong-tack region to a slight-tack region, and a pressure-sensitive adhesive are provided. The process for producing a urethane resin comprises reacting a polyol with a polyisocyanate compound in such a proportion that isocyanate groups are in excess to thereby obtain an isocyanate-group-terminated prepolymer, thereafter reacting the isocyanate-group-terminated prepolymer with a chain extender, and reacting the resultant polymer with a chain terminator, wherein the chain extender has three or more functional groups reactive with an isocyanate group, wherein one of the functional groups is a primary amino group or a secondary amino group, another is a primary hydroxyl group, and the remaining functional group(s) are a secondary hydroxyl group or a tertiary hydroxyl group. The pressure-sensitive adhesive comprises the urethane resin obtained.
    Type: Application
    Filed: March 30, 2007
    Publication date: January 8, 2009
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Hitoshi Shimoma, Kota Hamasaki, Makito Nakamura, Hisashi Sato, Hiroshi Wada
  • Publication number: 20080312386
    Abstract: An object of the invention is to provide a process for urethane resin production in which the molecular weight of the urethane resin can be easily controlled regardless of the kind of polyisocyanate compound and which can yield a urethane resin for use as a removable pressure-sensitive adhesive usable in extensive applications ranging from a strong-tack region to a slight-tack region.
    Type: Application
    Filed: August 11, 2008
    Publication date: December 18, 2008
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Makito NAKAMURA, Hitoshi Shimoma, Hisashi Sato, Yasuhito Adachi
  • Publication number: 20070088146
    Abstract: The present invention provides a method for producing a thermoplastic polyurethane elastomer having excellent heat resistance and mechanical properties, and capable of obtaining one having a low hardness without using a plasticizer. A method for producing a polyurethane elastomer, which comprises reacting a polyol compound and a polyisocyanate compound, characterized by using, as all or part of the above polyol compound, a polyester ether polyol (A) obtainable by ring-opening polymerization of a mixture of an alkylene oxide and a lactone monomer with an initiator.
    Type: Application
    Filed: November 30, 2006
    Publication date: April 19, 2007
    Applicant: Asahi Glass Company, Limited
    Inventors: Makito NAKAMURA, Hiroshi WADA