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. 03, 2024
Filed:
Mar. 29, 2021
Applicant:
Koehler Innovation & Technology Gmbh, Oberkirch, DE;
Inventors:
Timo Stalling, Appenweier, DE;
Michael Horn, Offenburg, DE;
Assignee:
Koehler Innovation & Technology GmBH, Oberkirch, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/333 (2006.01); C07C 309/76 (2006.01); B41M 5/327 (2006.01);
U.S. Cl.
CPC ...
B41M 5/3333 (2013.01); C07C 309/76 (2013.01); B41M 5/3275 (2013.01); B41M 2205/04 (2013.01);
Abstract
Described are colour developers of formula (I)Ar—NH—CO—NH—CH—SO—O—CH—NH—CO—NH—Ar (I),a heat-sensitive recording material comprising a carrier substrate and also a heat-sensitive, colour-forming layer containing at least one colour former and at least one phenol-free colour developer, wherein the at least one colour developer is the compound of formula (I), and a method for producing this heat-sensitive recording material.