发明名称 |
SYNDIOTACTIC VINYLAROMATIC POLYMERIZATION USING MULTIPLE REACTORS IN SERIES |
摘要 |
A method for making a syndiotactic vinylaromatic polymer. The method includes mixing a first amount of a vinylaromatic monomer with a catalyst in a first back-mixed reaction zone under polymerization conditions such that the vinylaromatic monomer polymerizes to a conversion of from 60 to 85 percent to form a polymer-containing mixture. The polymer-containing mixture is passed to at least one other back-mixed reaction zone where it contacts a second amount of the vinylaromatic monomer under polymerization conditions such that the syndiotatic vinylaromatic polymer is formed.
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申请公布号 |
WO9910394(A1) |
申请公布日期 |
1999.03.04 |
申请号 |
WO1998US16789 |
申请日期 |
1998.08.13 |
申请人 |
THE DOW CHEMICAL COMPANY;BEAUDOIN, DANIEL, A. |
发明人 |
BEAUDOIN, DANIEL, A. |
分类号 |
C08F2/00;C08F12/04;(IPC1-7):C08F12/04 |
主分类号 |
C08F2/00 |
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