发明名称 |
Methods for removing contaminants from polymers |
摘要 |
<p>The present invention relates to a method for treating plastic polymers to reduce or remove organic contaminants. More particularly, the present invention relates to a method of treating , by continuous means, a flowable polymer mass with a solvating fluid in an environment at which the solvating fluid is in a supercritical state and is subject to conditions sufficient to preferentially solvate and extract organic, and especially non-volatile, contaminants from the polymer mass. <IMAGE></p> |
申请公布号 |
EP0838318(A2) |
申请公布日期 |
1998.04.29 |
申请号 |
EP19970203157 |
申请日期 |
1997.10.10 |
申请人 |
PRAXAIR TECHNOLOGY, INC. |
发明人 |
DUFRESNE, LOUISE ANNE;AGRAWAL, RAJAT DARSHAN;MOORE, FERREL |
分类号 |
B29B17/02;B29C47/76;C08F6/00;(IPC1-7):B29B13/06 |
主分类号 |
B29B17/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|