Polymer scale preventive agent
申请(专利)号：
NZ19910238965
申请日期：
1991-07-15
公开/公告号：
NZ238965A
公开/公告日期：
1993-05-26
申请(专利权)人：
SHIN-ETSU CHEMICAL CO LTD
被引量：
摘要：
A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising an alkaline solution containing (A) a condensation product of (A-1) a diamino aromatic compound having the general formula (1): wherein R is at least one group selected from the group consisting of -OH, -COOH and -SOH, R is a hydrogen atom or a substituent group, X is a single bond or a divalent group of the formula -CH=CH-, and and are each an integer from 0 to 4, provided and are not simultaneously zero, when a plurality of R groups are present they may be identical or different, and when a plurality of R groups are present they may be identical or different, with (A-2) a quinone compound, and a process for producing a polymer using the agent are disclosed. Polymer scale deposition can be prevented not only on the areas located in the liquid phase region but also on the areas around the interface between gas and liquid phases in a polymerization vessel, and a polymeric product can be obtained which has a reduced number of fish eyes when processed into formed products.
展开
相似文献
参考文献
引证文献
辅助模式
引用
文献可以批量引用啦~
欢迎点我试用！
