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.:
Date of Patent:
Dec. 07, 2021
Filed:
Oct. 04, 2018
Applicant:
Lg Electronics Inc., Seoul, KR;
Inventors:
Misun Lee, Seoul, KR;
Eunseck Kang, Seoul, KR;
Koun Park, Seoul, KR;
Dongwook Lee, Seoul, KR;
Kyungho Jung, Seoul, KR;
Assignee:
LG ELECTRONICS INC., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D21H 11/18 (2006.01); D21C 9/00 (2006.01); D21H 11/20 (2006.01); D21B 1/14 (2006.01);
U.S. Cl.
CPC ...
D21H 11/18 (2013.01); D21B 1/14 (2013.01); D21C 9/004 (2013.01); D21C 9/007 (2013.01); D21H 11/20 (2013.01);
Abstract
A method according to the present disclosure may includes preparing a urea solution by dissolving urea in distilled water, adding phosphoric acid to the urea solution, adding pulp to the solution in which urea and phosphoric acid are dissolved, heating the solution such that the urea and the phosphoric acid each react with the pulp and preparing nanocellulose by washing the pulp which is completely reacted, and then grinding the pulp, in which a weight of the phosphoric acid is 10 to 50% based on a weight of the pulp.