IMPROVED RESORBABLE POLYMER PURIFICATION PROCESS

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专利权人:

EVONIK CORPORATION

发明人:

LU, Jie,OBERMEIER, Boris,ARNOLD-STANTON, Regina,JONES, Adolphus

申请号：

SG11202001688W

公开号：

SG11202001688WA

申请日:

2018.08.31

申请国别(地区):

SG

年份:

2020

代理人:

摘要：

The present invention is directed to an improved purification process using additive and activated carbon for purifying resorbable polymers suitable for industrial manufacturing. The metal catalyst concentration in the purified resorbable polymers of this invention is preferably less than 1 ppm. The method can be used to obtain high molecular weight polymers that are substantially metal free.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/