Title:
ポリエーテルポリウレタン
Document Type and Number:
Japanese Patent JP3707777
Kind Code:
B2
Abstract:
Disclosed is a polyether polyurethane comprising (A) at least one polyisocyanate having two or more isocyanate groups, which is selected from the group consisting of an aromatic polyisocyanate and an aliphatic polyisocyanate; (B) a polyoxytetramethylene glycol (PTMG) having a number average molecular weight of from 500 to 4,000, a molecular weight distribution (Mw/Mn) of 1.75 or less, and a content of high molecular weight PTMG molecules of 10% by weight or less; and (C) at least one chain extender selected from the group consisting of a C2-C10 polyol having two or more hydroxyl groups and a C2-C10 polyamine having two or more amino groups. Also disclosed is a urethane prepolymer which comprises the above-mentioned components (A) and (B) and which has terminal isocyanate groups.
Inventors:
Atsushi Shimizu
Mutsuhisa Furukawa
Seiyu Kato
Yoshiyuki Asahina
Mutsuhisa Furukawa
Seiyu Kato
Yoshiyuki Asahina
Application Number:
JP2001518772A
Publication Date:
October 19, 2005
Filing Date:
August 18, 2000
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
C08G18/10; C08G18/12; C08G18/42; C08G18/48; C08G18/66; C09D175/04; (IPC1-7): C08G18/66; C08G18/10; C08G18/48
Domestic Patent References:
| JP2000309622A | ||||
| JP60149623A | ||||
| JP4008719A | ||||
| JP4213316A |
Attorney, Agent or Firm:
Masami Sakai
Norio Kagami
Jun Komatsu
Norio Kagami
Jun Komatsu