发明名称 |
Process for preparation of increased molecular weight polyarylene sulfides. |
摘要 |
<p>An improved process for preparing increased molecular weight polyarylene sulfides is disclosed. The process comprises at least two stages: a first polymerization stage in which a polymer of a relatively low molecular weight is prepared and a second polymerization stage in which the molecular weight is substantially increased. The increased molecular weight permits the polymer to be used in a wide range of molding and shaping applications.</p> |
申请公布号 |
EP0446057(A2) |
申请公布日期 |
1991.09.11 |
申请号 |
EP19910301923 |
申请日期 |
1991.03.07 |
申请人 |
TOSOH CORPORATION |
发明人 |
TANAKA, SHINJI;INOUE, HIROSHI |
分类号 |
C08G75/02;C08G75/06 |
主分类号 |
C08G75/02 |
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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