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.

Date of Patent:
Oct. 28, 2025

Filed:

Aug. 13, 2021
Applicants:

The United States of America, As Represented BY the Secretary of Agriculture, Washington, DC (US);

World Centric, Rohnert Park, CA (US);

Inventors:

Gregory M. Glenn, Grand Junction, CO (US);

Xing Jin, Albany, CA (US);

Randal L. Shogren, Columbia Falls, MT (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 17/28 (2006.01); B65D 65/38 (2006.01); D21H 17/17 (2006.01); D21H 21/16 (2006.01); D21H 23/04 (2006.01); D21J 3/12 (2006.01);
U.S. Cl.
CPC ...
D21H 17/28 (2013.01); B65D 65/38 (2013.01); D21H 17/17 (2013.01); D21H 21/16 (2013.01); D21H 23/04 (2013.01); D21J 3/12 (2013.01);
Abstract

The invention relates to uncoated, fiber/starch composite materials manufactured without the use of fluorochemicals or additional binders that offer superior oil and grease resistance properties. Addition of an internal sizing agent in the preparation of the fiber/starch composite materials results in superior hot water and cold water resistance properties. The fiber/starch composite materials may be used for the manufacture of food service containers. The invention also relates to methods of preparation of the fiber/starch composite materials.


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