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. 10, 2024
Filed:
Jan. 22, 2024
Applicant:
King Faisal University, Al-Ahsa, SA;
Inventors:
Mai Mostafa Khalaf Ali, Al-Ahsa, SA;
Hany Mohamed Abd El-Lateef, Al-Ahsa, SA;
Mohamed Gouda, Al-Ahsa, SA;
Assignee:
KING FAISAL UNIVERSITY, Al-Ahsa, SA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B42D 25/378 (2014.01); C09B 67/02 (2006.01); C09D 11/037 (2014.01); C09D 11/107 (2014.01); C09D 11/50 (2014.01); C09K 9/02 (2006.01); D21H 19/42 (2006.01); D21H 19/58 (2006.01); D21H 21/28 (2006.01); D21H 21/48 (2006.01);
U.S. Cl.
CPC ...
B42D 25/378 (2014.10); C09B 67/0097 (2013.01); C09D 11/037 (2013.01); C09D 11/107 (2013.01); C09D 11/50 (2013.01); C09K 9/02 (2013.01); D21H 19/42 (2013.01); D21H 19/58 (2013.01); D21H 21/28 (2013.01); D21H 21/48 (2013.01); C09K 2211/1007 (2013.01); C09K 2211/1018 (2013.01);
Abstract
A thermochromic ink and, particularly, to a thermochromic ink produced by combining an anthocyanidin extract with alginate. The thermochromic ink can be used for authentication purposes produced by combining an anthocyanidin (ACYD)-basedL. var.extract with an alginate (ALG). To increase the anthocyanidin/alginate ink stability, a mordant (ferrous sulfate) can be used to link the anthocyanidin biomolecules with the alginate.