US Patent 7638655 Method for producting 4-(methylthio)butane-1,2-diol

Patent 7638655 was granted and assigned to Sumitomo Chemical on December, 2009 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Sumitomo Chemical

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

76386550

Patent Inventor Names

Koji Hagiya0

Date of Patent

December 29, 2009

Patent Application Number

119917340

Date Filed

August 11, 2006

Patent Primary Examiner

‌

Sikarl A. Witherspoon

Patent abstract

A method for producing 4-(methylthio)butane-1,2-diol which comprises reacting 3-butene-1,2-diol with methanethiol in the presence of at least one nitrogen-containing compound selected from a nitrogen-containing aromatic compound and a tertiary amine compound and a carboxylic acid compound.

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