发明名称 |
Vinyl chloride suspension or bulk polymerisation initiator compsn. - contg. azo cpd., peroxy-di:carbonate, peroxy-ester and/or di:acyl peroxide and alcohol |
摘要 |
<p>Initiator compsn. for vinyl chloride suspension- or bulk polymerisation consists of (1) 0.005-0.25 wt.%, w.r.t. monomer, of a free radical-generating azo cpd., peroxy dicarbonate, alpha-branched peroxyesters and/or diacyl peroxide initiator, (I) and (2) 0.5-35 wt%, w.r.t. (I), of 18-20C alkyl- or aralkyl alcohol (II). (II)-addn. accelerates polymerisation velocity. E.g. 30% decan-l-ol addn. to tert. Bu peroxyneodecanate used as (I) lowered time before pressure fall in vinyl chloride suspension polymerisation from 300- to 210 min. The polymers have a narrower particle size distribution. Soiling of stirrer and reactor is reduced.</p> |
申请公布号 |
DE2942382(A1) |
申请公布日期 |
1980.05.08 |
申请号 |
DE19792942382 |
申请日期 |
1979.10.19 |
申请人 |
PENNWALT CORP. |
发明人 |
RATHNAKAR KAMATH,VASANTH;STEPHEN SHEPPARD,CHESTER |
分类号 |
C08F4/32;C08F14/06;(IPC1-7):C08F14/06 |
主分类号 |
C08F4/32 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|