Title:
【発明の名称】柔軟性にすぐれたポリウレタン系硬化性組成物
Document Type and Number:
Japanese Patent JP2619109
Kind Code:
B2
Abstract:
A cold curing polyurethane composition containing as a curing component an isocyanate-terminated polyurethane prepolymer prepared by reacting an organic polyisocyanate with a polyol mainly comprising a polyoxyalkylene polyol having a molecular weight of 1,500 to 15,000 per unit hydroxyl group and a total degree of unsaturation of 0.07 meq/g or less. Such a polyoxyalkylene polyol is produced preferably by the ring-opening addition polymerization of an alkylene oxide with an initiator in the presence of a double metal cyanide complex catalyst. This composition gives a highly flexible cured article by curing the same with an atmospheric moisture. The use of a high-molecular polyoxyalkylene polyol as the curing agent gives a similar highly flexible cured article. This composition is useful as a sealant or a waterproofing material.
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Inventors:
Toshihiko Higuchi
Shigeyuki Ozawa
Kunii Nobuaki
Shigeyuki Ozawa
Kunii Nobuaki
Application Number:
JP11059190A
Publication Date:
June 11, 1997
Filing Date:
April 27, 1990
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
C08G18/10; C08G18/48; C08G65/26; (IPC1-7): C08G18/48
Domestic Patent References:
| JP2219822A |
Attorney, Agent or Firm:
Kenji Izumina (3 outside)