The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8734959 B1

PDF
Full Text
Expired
Date of Patent:
May. 27, 2014

Filed:

Dec. 21, 2009
Applicants:

Caisa Johansson, Karlstad, SE;

Lars Järnström, Uppsala, SE;

Christopher Breen, South Yorkshire, GB;

Inventors:

Caisa Johansson, Karlstad, SE;

Lars Järnström, Uppsala, SE;

Christopher Breen, South Yorkshire, GB;

Assignees:

Other;

Sheffield Hallam University, Sheffield South Yorkshire, GB;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B 23/04 (2006.01);
U.S. Cl.
CPC ...
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.


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Johansson, Caisa. (2014). Barrier material and method for making the same (U.S. Patent No. 8734959). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8734959

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