发明名称 |
Method for improving the melt flow rate of polystyrene |
摘要 |
The specification discloses a method for assuring consistent and, if desired, increased melt flow rate in a vinyl aromatic based polymer by controlling the degree of absorption of carbon dioxide, oxygen and/or argon for a substantial period of time immediately prior to introduction of the polymer into a molding machine.
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申请公布号 |
US4782134(A) |
申请公布日期 |
1988.11.01 |
申请号 |
US19860920409 |
申请日期 |
1986.10.20 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
MOORE, EUGENE R.;LINDSEY, JR., RUDOLPH;DALKE, BRIAN D. |
分类号 |
C08F6/26;(IPC1-7):C08F6/00;C08J9/18;B29B13/04 |
主分类号 |
C08F6/26 |
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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