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:
Aug. 10, 2021
Filed:
Jan. 18, 2018
Applicant:
Papierfabrik August Koehler SE, Oberkirch, DE;
Inventors:
Assignee:
PAPIERFABRIK AUGUST KOEHLER SE, Oberkirch, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/333 (2006.01); B41M 5/327 (2006.01); C07C 311/47 (2006.01); C07C 311/21 (2006.01);
U.S. Cl.
CPC ...
B41M 5/3333 (2013.01); B41M 5/3275 (2013.01); C07C 311/21 (2013.01); C07C 311/47 (2013.01); C07C 2601/16 (2017.05);
Abstract
The invention relates to a compound of the formula (I) Ar(NHSOAr)l(SONHAr)(NHC(O)NHAr)(I), wherein l and m independently of one another are 0, 1, 2, 3, and/or 4 and the sum of l+m is equal to or more than 1, n is 2, 3, 4, or 5, Ar is a benzol group which is substituted (l+m+n) times, Aris an unsubstituted or substituted aromatic group, and Aris an unsubstituted or substituted phenyl group or a benzoyl group. The invention also relates to a heat-sensitive recording material comprising a carrier substrate and a heat-sensitive color-forming layer which contains at least one color former and at least said color developer.