Title:
URETHANE RESIN SOLUTION, PROCESS FOR PRODUCTION THEREOF, AND PROCESS FOR PRODUCTION OF URETHANE RESIN
Document Type and Number:
WIPO Patent Application WO/2006/043568
Kind Code:
A1
Abstract:
A urethane resin solution capable of giving a urethane resin which exhibits a low stretch modulus, a low modulus of elasticity at low temperature, and excellent elastic recovery and is excellent in heat resistance and adhesiveness; a process for the production thereof; and a process for the production of a urethane resin. The urethane resin solution is produced by subjecting a mixture of an alkylene oxide and a lactone monomer to ring-opening polymerization with an initiator consisting of a polyoxy- tetramethylenediol having a molecular weight of 500 to 2500, if necessary, in the presence of a double metal cyanide complex catalyst to obtain a polyether ester diol having a molecular weight of 800 to 4000, reacting the polyether ester diol with a polyisocyanate to form an isocyanate-terminated prepolymer, and then reacting the prepolymer with a chain extender such as a low-molecular diamine and/or a low-molecular diol in an organic solvent. The obtained solution can give a urethane resin by molding into a prescribed shape or by application to a substrate by coating or immersion and solvent removal subsequent to the application.
Inventors:
Tsuge, Yukio c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Ohori, Tomeyoshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Wada, Hiroshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Ohori, Tomeyoshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Wada, Hiroshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Application Number:
PCT/JP2005/019145
Publication Date:
April 27, 2006
Filing Date:
October 18, 2005
Export Citation:
Assignee:
ASAHI GLASS COMPANY, LIMITED (12-1, Yurakucho 1-chome Chiyoda-k, Tokyo 05, 10084, JP)
Tsuge, Yukio c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Ohori, Tomeyoshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Wada, Hiroshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Tsuge, Yukio c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Ohori, Tomeyoshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
Wada, Hiroshi c/o Asahi Glass Urethane Co. Ltd. (25, Towada, Kamisu-cit, Ibaraki 95, 31401, JP)
International Classes:
C08G18/42; B05D7/24; C08G18/10; C08G18/65; C08L75/06; D01F6/70; D06N3/14
Attorney, Agent or Firm:
Senmyo, Kenji (Torimoto Kogyo Bldg, 38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo 42, 10100, JP)
Download PDF:
Previous Patent: CONDENSING LENS AND OPTICAL SCANNING DEVICE
Next Patent: POLYURETHANE RESIN AND PROCESS FOR PRODUCING POLYURETHANE RESIN SOLUTION
Next Patent: POLYURETHANE RESIN AND PROCESS FOR PRODUCING POLYURETHANE RESIN SOLUTION