发明授权
- 专利标题： Process for producing sulfur modified polychloroprene in the presence of quaternary ammonium salts
- 专利标题（中）： 在季铵盐存在下生产硫改性聚氯丁二烯的方法
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申请号： US784512申请日： 1977-04-04
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公开(公告)号： US4130704A公开(公告)日： 1978-12-19
- 发明人: Akihiko Shimizu , Atsushi Kita
- 申请人： Akihiko Shimizu , Atsushi Kita
- 申请人地址： JPX Yamaguchi
- 专利权人： Toyo Soda Manufacturing Co., Ltd.
- 当前专利权人： Toyo Soda Manufacturing Co., Ltd.
- 当前专利权人地址： JPX Yamaguchi
- 优先权： JPX49-89497 19740806
- 主分类号： C08F2/28
- IPC分类号： C08F2/28 ; C08F36/18 ; C08F136/18
摘要：
A sulfur modified polychloroprene is produced in a process which comprises polymerizing chloroprene or a mixture of chloroprene and a comonomer in a neutral or acidic aqueous emulsion by using a cationic emulsifier in the presence of sulfur and a peroxide initiator, and then performing a peptization of the resulting sulfur modified polychloroprene latex by addition thereto of an alkaline aqueous solution in amounts sufficient to reduce the pH of the latex to alkaline conditions.
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