Title:
THERMOSETTING POLYURETHANE ELASTOMER COMPOSITION, POLYURETHANE ELASTOMER AND PROCESS FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2003/074582
Kind Code:
A1
Abstract:
A polyurethane elastomer having low hardness, high strength, and high elongation, which is produced by curing an isocyanate-terminated prepolymer (i) obtained by reacting a polyoxyalkylene polyol having an average number of hydroxyl groups exceeding 2, a total degree of unsaturation of less than 0.05 meq/g, and a number-average molecular weight of 4000 to 20000 with a polyisocyanate compound with a curing agent (ii) containing as the curing components a polyoxytetramethylene polyol (a) and a chain extender (b) bearing two active hydrogen-containing groups and having a number-average molecular weight of 500 or below.
Inventors:
SAITO JOICHI (JP)
SHIMOMA HITOSHI (JP)
SHIMOMA HITOSHI (JP)
Application Number:
PCT/JP2003/002592
Publication Date:
September 12, 2003
Filing Date:
March 05, 2003
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
SAITO JOICHI (JP)
SHIMOMA HITOSHI (JP)
SAITO JOICHI (JP)
SHIMOMA HITOSHI (JP)
International Classes:
C08G18/10; C08G18/48; (IPC1-7): C08G18/66
Foreign References:
| JPH0238455A | 1990-02-07 | |||
| JPH01230618A | 1989-09-14 | |||
| JPH01152118A | 1989-06-14 | |||
| JPS63225637A | 1988-09-20 |
Other References:
See also references of EP 1489119A4
Attorney, Agent or Firm:
Senmyo, Kenji (38 Kanda-Higashimatsushitach, Chiyoda-ku Tokyo, JP)
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