发明名称 |
Corrosion-resistant material for sulfur-containing alkali metal salts and equipment for producing polyarylene sulfide using the same, and polyarylene sulfide and process for producing the same. |
摘要 |
<p>A corrosion-resistant material against sulfur-containing alkali metal salt which comprises high purity metallic chromium having a relative density of 95% or higher and a purity of 99.7% or higher and equipment for production of polyarylene sulfides which is composed of such a corrosion-resistant material, and a polyarylene sulfide containing substantially no heavy metal and a process for producing such a polyarylene sulfide comprising reacting an alkali metal sulfide and a dihalogenated aromatic compound in a polar aprotic solvent by using equipment made of high purity chromium having a purity of 99.7% or higher and having a relative density of 95% or higher at least at parts in contact with a liquid are disclosed.</p> |
申请公布号 |
EP0456349(A2) |
申请公布日期 |
1991.11.13 |
申请号 |
EP19910303000 |
申请日期 |
1991.04.05 |
申请人 |
TOSOH CORPORATION |
发明人 |
KATO, MASATOSHI;INOUE, HIROSHI;KATO, TOSHIKAZU |
分类号 |
C08G75/02;C22C27/06 |
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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