Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yutaka Takashina0
Kiyoshi Katsuura0
Tomoya Hidaka0
Yasuo Ohnuki0
Date of Patent
November 17, 2009
0Patent Application Number
109508890
Date Filed
September 27, 2004
0Patent Primary Examiner
Patent abstract
The present invention is to provide methods for producing highly pure 4,4′-dihydroxydiphenyl sulfone monoethers advantageously in industrial production.
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