Title:
MANUFACTURE OF POLYURETHANE FOAM MOLDED ARITCLE
Document Type and Number:
Japanese Patent JP3260195
Kind Code:
B2
Abstract:
PURPOSE: To improve the moldability of skinned polyurethane foam molded article without using R-11 by a method wherein specified polyoxyalkylene polyol, polyisocyanate compound and the like are reacted to one another in the presence of the predetermined foaming material and catalyst in molds.
CONSTITUTION: Polyoxyalkylene polyol, the number of hydroxyl groups of which is 2-8, the hydroxyl value X and the total degree of unsaturation Y of which satisfy the following relationships: Y≤0.04 at 3≤X≤32.5, and Y≤0.9/(X-10) at 32.5≤X≤60, or polymer-dispersed polyol (a) having the above- mentioned polyoxyalkylene polyol as matrix is prepared. Further, polyoxyalkylene polyol or polymer-dispersed polyol (b) excluding (a) is also prepared. The desired molded article is obtained by reacting polymer active hydrogen, at least 80wt.% of which contains polyoxyalkylene polyol consisting of 20-100wt.% of the component (a) and 0-80wt.% of the component (b), chain extender and polyisocyanate compound to one another under the presence of the predetermined foaming material and catalyst in molds.
Inventors:
Hiroshi Wada
Kyuichi Harada
Shoji Hayashida
Kyuichi Harada
Shoji Hayashida
Application Number:
JP3125493A
Publication Date:
February 25, 2002
Filing Date:
January 27, 1993
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
B29C39/10; B29C39/02; B29C45/00; C08G18/00; C08G18/08; C08G18/09; C08G18/65; C08G18/66; C08J9/02; C08G101/00; (IPC1-7): B29C45/00; B29C39/02; C08G18/09; C08G18/66; C08J9/02
Domestic Patent References:
| JP4152116A |
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