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US Patent 8734959 Barrier material and method for making the same

Patent 8734959 was granted and assigned to Sheffield Hallam University on May, 2014 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors

Is a

Patent

Patent attributes

Current Assignee

Sheffield Hallam University

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

8734959

Date of Patent

May 27, 2014

Patent Application Number

13139814

Date Filed

December 21, 2009

Patent Primary Examiner

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Leszek Kiliman

Patent abstract

The present invention relates to a biopolymer based barrier coating composition wherein said biopolymer based barrier coating composition comprises a plasticizer, a nano-sized clay and a biopolymer comprising a native starch and/or a de-graded starch and/or a chemically modified starch. The present invention also relates to a method for preparing the biopolymer based barrier coating composition as well as to a method for coating a cellulose based substrate with the biopolymer based barrier coating composition. Finally, the present invention relates to a cellulose based substrate coated with said biopolymer based barrier coating composition.