发明授权
US4820810A Urea catalyst for preparation of sucrose polyols useful for rigid
polyurethane foams
失效
用于制备用于硬质聚氨酯泡沫的蔗糖多元醇的尿素催化剂
- 专利标题: Urea catalyst for preparation of sucrose polyols useful for rigid polyurethane foams
- 专利标题(中): 用于制备用于硬质聚氨酯泡沫的蔗糖多元醇的尿素催化剂
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申请号: US924660申请日: 1986-10-30
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公开(公告)号: US4820810A公开(公告)日: 1989-04-11
- 发明人: Howard P. Klein , Michael E. Brennan
- 申请人: Howard P. Klein , Michael E. Brennan
- 申请人地址: DE Wilmington
- 专利权人: ARCO Chemical Technology, Inc.
- 当前专利权人: ARCO Chemical Technology, Inc.
- 当前专利权人地址: DE Wilmington
- 主分类号: C08G65/28
- IPC分类号: C08G65/28 ; C07H15/08 ; C08G18/48 ; C08G18/50 ; C08G65/26 ; C08G18/14
摘要:
Catalytic quantities of urea are used in the alkoxylation of aqueous sucrose to prepare low color polyols useful in rigid polyurethane foams.
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