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US Patent 7713341 Quaternary ammonium salt compositions

Patent 7713341 was granted and assigned to Kao Corporation on May, 2010 by the United States Patent and Trademark Office.

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Patent attributes

Current Assignee

Kao Corporation

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Tetsuaki Fukushima0

Katsuhisa Inoue0

Kazuhiko Kurita0

Tadayuki Suzuki0

Hidehito Ikebata0

Date of Patent

May 11, 2010

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Patent Application Number

120786900

Date Filed

April 3, 2008

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Patent Primary Examiner

Anthony J Green

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Patent abstract

The present invention relates to a quaternary ammonium salt composition containing (a) a quaternary ammonium salt represented by the following general formula (1), (b) a specific tertiary amine and (c) an organic acid ester in specific mass ratios which is excellent in hue and storage stability, a process for producing the quaternary ammonium salt composition, and a wood preservative containing the quaternary ammonium salt composition.

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