Title:
硬化速度に優れた硬質ポリウレタンフォームの製造法
Document Type and Number:
Japanese Patent JP3572422
Kind Code:
B2
Abstract:
PURPOSE: To obtain a rigid polyurethane foam improved in curing rate, moldability, and physical properties even when the amt. of water used as a blowing agent is increased without using a chlorofluorocarbon blowing agent by using a specific amine compd. as the catalyst. CONSTITUTION: A rigid polyurethane foam is produced by reacting a polyol component with a polyisocyanate component in the presence of an amine catalyst, a blowing agent, and a foam stabilizer under conditions that at least one amine compd. selected from among compds. represented by the formula (wherein A is a 11-14C alkyl; and R1 and R2 are each a 1-6C alkyl) is used as the amine catalyst and that water or a mixture thereof with a hydrocarbon, a hydrochlorofluorocarbon, or a hydrofluorocarbon is used as the blowing agent in an amt. of water of 2-15 pts.wt. based on 100 pts.wt. polyol component.
Inventors:
Hiroyuki Yoshimura
Yutaka Tamano
Shuichi Okuzono
Yutaka Tamano
Shuichi Okuzono
Application Number:
JP26266194A
Publication Date:
October 06, 2004
Filing Date:
October 26, 1994
Export Citation:
Assignee:
Tosoh Corporation
International Classes:
C08G18/08; C08G18/00; C08G18/16; C08G18/18; C08G101/00; (IPC1-7): C08G18/18
Domestic Patent References:
| JP58093715A |
Foreign References:
| US4515638 | ||||
| US3074911 |
Other References:
岩田敬治編,ポリウレタン樹脂ハンドブック,日本,日刊工業新聞社,1987年 9月25日,pp.118-121