US Patent 7470368 Hydrophilic substance and a production method thereof

Patent 7470368 was granted and assigned to Toray Industries on December, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Toray Industries

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

7470368

Date of Patent

December 30, 2008

Patent Application Number

11907655

Date Filed

October 16, 2007

Patent Primary Examiner

‌

Ana M Fortuna

Patent abstract

The present invention relates to a hydrophilic substance production method characterized in that polyvinylpyrrolidone-containing material wetted with an aqueous solution of a cationic polymer is treated with radiation. The invention makes it possible to produce material for blood treatment that prevents adsorption of blood platelets.