发明名称 |
Process for polymerizing vinyl chloride |
摘要 |
Disclosed is a process for polymerizing vinyl chloride, alone or in combination with a comonomer, in the vapor phase maintained at a pressure lower than the vapor pressure of the monomer at the polymerization temperature employed, and in the presence of the specified seed vinyl chloride polymer particles. The seed polymer particles used are prepared by polymerizing vinyl chloride, along or in combination with a comonomer, under bulk conditions, in the presence of 0.001% to 2% by weight, based on the weight of the monomer, of a cellulose ether soluble in the monomer.
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申请公布号 |
US4145499(A) |
申请公布日期 |
1979.03.20 |
申请号 |
US19780901243 |
申请日期 |
1978.04.28 |
申请人 |
TOYO SODA MANUFACTURING CO., LTD. |
发明人 |
NAGANO, MINEO;AWAZAWA, SHIGERU;NIWA, TATSUHIKO |
分类号 |
C08F2/02;C08F259/04;(IPC1-7):C08F2/02;C08F6/26;C08F14/06 |
主分类号 |
C08F2/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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