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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 12195921 B1

PDFFull Text
Date of Patent:
Jan. 14, 2025

Filed:

Oct. 11, 2021

Double-crosslinked cellulose nanofiber film with high strength and high transmittance and method for manufacturing the same

Applicants:

Hyundai Motor Company, Seoul, KR;

Kia Corporation, Seoul, KR;

University-industry Cooperation Group of Kyung Hee University, Yongin-si, KR;

Inventors:

Chae Hwan Hong, Seoul, KR;

Jin Woo Choung, Suwon-si, KR;

Jungmok You, Yongin-si, KR;

Kangyun Lee, Suwon-si, KR;

Assignees:

HYUNDAI MOTOR COMPANY, Seoul, KR;

KIA CORPORATION, Seoul, KR;

UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, Yongin-si, KR;

Attorney:

Lempia Summerfield Katz LLC

Primary Examiner:

Jacob T Minskey

Assistant Examiner:

Stephen M Russell

Int. Cl.
CPC ...
D21H 17/66 (2006.01); D21H 11/10 (2006.01); D21H 21/14 (2006.01); B82Y 40/00 (2011.01);
U.S. Cl.
CPC ...
D21H 17/66 (2013.01); D21H 11/10 (2013.01); D21H 21/14 (2013.01); B82Y 40/00 (2013.01);
Abstract

A method for manufacturing a cellulose nanofiber film is provided. The method includes preparing cellulose nanofiber dispersion, performing a chemical crosslinking by adding an epichlorohydrin-based material to the cellulose nanofiber dispersion to prepare a planar body and performing physical crosslinking in which a metal chloride is added to the planar body.

Find Patent Forward Citations

Quick Actions:

Hong, Chae. (2025). Double-crosslinked cellulose nanofiber film with high strength and high transmittance and method for manufacturing the same (U.S. Patent No. 12195921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12195921

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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