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:
Jun. 12, 1984
Filed:
Jun. 07, 1982
Applicant:
Inventors:
Albert Wurmli, Riehen, CH;
Christel Tempel, Riehen, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M / ; B41M / ; B41M / ;
U.S. Cl.
CPC ...
346216 ;
Abstract
A pressure-sensitive or heat-sensitive recording material which contains in its color reactant system, as developer for the color former, at least one metal-free compound of the formula ##STR1## wherein R is alkyl of 1 to 12 carbon atoms, cycloalkyl, phenyl, benzyl, or phenyl which is substituted by halogen, nitro, methyl, methoxy, ethoxy or methylenedioxy, and X is hydrogen, halogen, carboxyl, lower alkyl or lower alkoxy.