发明授权
US6046249A Dimensional stabilizing, cell opening additives for polyurethane
flexible and rigid foams
失效
尺寸稳定，聚氨酯柔性和刚性泡沫的开孔添加剂
- 专利标题： Dimensional stabilizing, cell opening additives for polyurethane flexible and rigid foams
- 专利标题（中）： 尺寸稳定，聚氨酯柔性和刚性泡沫的开孔添加剂
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申请号： US338105申请日： 1999-06-23
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公开(公告)号： US6046249A公开(公告)日： 2000-04-04
- 发明人: James Douglas Tobias , Julia Renae Bennett , Gary Dale Andrew , John Elton Dewhurst , Robert G. Petrella
- 申请人： James Douglas Tobias , Julia Renae Bennett , Gary Dale Andrew , John Elton Dewhurst , Robert G. Petrella
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： C08G18/00
- IPC分类号： C08G18/00 ; C08G18/18 ; C08G18/34 ; C08G18/40 ; C08G18/42 ; C08G18/48 ; C08G18/65 ; C08G18/66
摘要：
A method for preparing a polyurethane flexible or rigid foam by reacting an organic polyisocyanate with a polyol in the presence of urethane catalyst, water as a blowing agent, optionally a silicone surfactant, and a cell opener characterized in that the cell opener comprises the reaction product of a C1-C20 hydrocarbyl group-containing organic acid anhydride and a substituted phenol which may be alkoxylated or an alkoxylated primary alcohol, optionally reacted in the presence of a tertiary amine urethane catalyst.