发明名称 |
Process for reducing residual monomers in low viscosity polymer-polyols |
摘要 |
An improved process is provided for preparing stable low viscosity polymer-polyols containing less than about 100 ppm residual monomers by using a monoperoxycarbonate initiator in combination with at least one initiator selected from diperoxyketals and peroxyesters, as chaser catalysts, at or near the end of the polymerization. The polymer-polyols prepared by the instant invention can be used to prepare high resiliency (load bearing) polyurethane foams.
|
申请公布号 |
US4804775(A) |
申请公布日期 |
1989.02.14 |
申请号 |
US19860905412 |
申请日期 |
1986.09.09 |
申请人 |
PENNWALT CORPORATION |
发明人 |
KAMATH, VASANTH R.;PALYS, LEONARD H. |
分类号 |
C08F283/06;C08F4/28;C08F4/36;C08F4/38;C08F6/00;C08F283/00;C08G18/62;C08G18/63;(IPC1-7):C07C121/54 |
主分类号 |
C08F283/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|