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. 01, 2020
Filed:
Sep. 29, 2017
Applicant:
Mitsubishi Hitec Paper Europe Gmbh, Bielefeld, DE;
Inventors:
Claas Boxhammer, Herford, DE;
Martin Schreer, Melle, DE;
Assignee:
Mitsubishi HiTec Paper Europe GmbH, Bielefeld, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/323 (2006.01); B41M 5/333 (2006.01);
U.S. Cl.
CPC ...
B41M 5/323 (2013.01); B41M 5/3333 (2013.01); B41M 2205/04 (2013.01);
Abstract
A heat-sensitive recording material having i) a carrier substrate and ii) a heat-sensitive recording layer. The heat-sensitive recording layer contains a color former and a color developer mixture and the color developer mixture contains a) N/-[2-(3-phenylureido)phenyl]benzole sulfonamide (compound of formula (I)). The compound of formula (I) is present in a crystalline form, which has an absorption band in the IR spectrum at 3401±20 cm−1, and b) N-(4-methylphenylsulfonyl)-N-(3-(4-methylphenylsulfonyloxy)phenyl)urea (compound of formula (II)).