发明名称 |
Use of 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid for stabilizing polyether polyols |
摘要 |
The present invention relates to a method for stabilizing a polyether polyol having a molecular weight of from about 300 to about 10,000 comprising adding 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid as an antioxidant stabilizer, optionally in combination with other antioxidants, to said polyether polyol. This invention further relates to polyols stabilized by the method of this invention and to stabilized polyurethanes prepared from such stabilized polyols.
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申请公布号 |
US5006599(A) |
申请公布日期 |
1991.04.09 |
申请号 |
US19890450894 |
申请日期 |
1989.12.14 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
GUPTA, PRAMOD;ENGELS, HANS-WILHELM;RABE, HANSJUERGEN |
分类号 |
C08L71/02;C08G18/08;C08G18/48;C08K5/13;C08L75/00 |
主分类号 |
C08L71/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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