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:
Dec. 09, 2025

Filed:

Nov. 02, 2022
Applicants:

North Carolina State University, Raleigh, NC (US);

Domtar Paper Company Llc, Fort Mill, SC (US);

Inventors:

Lokendra Pal, Raleigh, NC (US);

Manoj Kumar Dixit, Matthews, NC (US);

Sachin Agate, Raleigh, NC (US);

Brian Watson Ranson, Greensboro, SC (US);

Assignees:

North Carolina State University, Raleigh, NC (US);

Domtar Paper Company LLC, Fort Mill, SC (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H 21/16 (2006.01); D21H 17/29 (2006.01); D21H 17/37 (2006.01); D21H 17/66 (2006.01); D21H 23/24 (2006.01); H05K 1/03 (2006.01); H05K 1/09 (2006.01);
U.S. Cl.
CPC ...
D21H 21/16 (2013.01); D21H 17/29 (2013.01); D21H 17/37 (2013.01); D21H 17/66 (2013.01); D21H 23/24 (2013.01); H05K 1/0386 (2013.01); H05K 1/097 (2013.01); H05K 2201/10037 (2013.01); H05K 2201/10098 (2013.01); H05K 2201/10106 (2013.01); H05K 2201/10128 (2013.01); H05K 2201/10151 (2013.01);
Abstract

Provided herein is an uncoated functional paper formed from a slurry comprising about 10 wt % to 90 wt % cellulosic fibers and about 1% to 25% sizing solution per total weight of the fibers. The sizing solution can be applied during papermaking and/or applied in a size press or coater. The paper can be calendered at a temperature greater than 50° C. Methods of making are also provided. Also provided are flexible electronics including a functional paper substrate printed with a conductive ink.


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