发明授权
- 专利标题： Process for the manufacture of plastics materials having a good impact strength
- 专利标题（中）： 具有良好冲击强度的塑料材料的制造工艺
-
申请号： US3624185D申请日： 1969-02-19
-
公开(公告)号： US3624185A公开(公告)日： 1971-11-30
- 发明人: LEDERER MICHAEL , EHMANN WERNER , MARKTSCHEFFEL FRITZ
- 申请人： HOECHST AG
- 专利权人： Hoechst AG
- 当前专利权人： Hoechst AG
- 优先权： DEF0054947 1968-02-29
- 主分类号： C08F2/18
- IPC分类号： C08F2/18 ; C08F2/20 ; C08F291/02 ; C08F15/04 ; C08F1/11 ; C08F7/04
摘要：
IN COMBINATION WITH A SALT OF POLYVINYL SULFONIC ACID.
A process for the suspension polymerization of a prepolymer derived from a mixture of from 70 percent to 98 percent of a vinyl aromatic substance, 2 percent to 30 percent of one or more elastomers, which has been mass-polymerized to a conversion of 10 to 60 percent, in an aqueous phase in the presence of a dispersing agent, which comprises using, as a dispersing agent, a copolymer of an open-chain N-vinylamide of the formula
A process for the suspension polymerization of a prepolymer derived from a mixture of from 70 percent to 98 percent of a vinyl aromatic substance, 2 percent to 30 percent of one or more elastomers, which has been mass-polymerized to a conversion of 10 to 60 percent, in an aqueous phase in the presence of a dispersing agent, which comprises using, as a dispersing agent, a copolymer of an open-chain N-vinylamide of the formula
信息查询
