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:
Sep. 29, 1981
Filed:
Nov. 16, 1979
Jean C Petitpierre, Kaiseraugst, CH;
Ciba-Geigy Corporation, Ardsley, NY (US);
Abstract
A pressure-sensitive or heat-sensitive recording material which contains in its color reactant system, as developer for color formers, at least one compound of the formula ##STR1## wherein Z is the radical of a reactive organic methylene or methyl compound or a radical of the formula ##STR2## wherein each of A.sub.1 and A.sub.2 independently is carbon or unsubstituted or substituted alkylene, arylene or aralkylene, each of X.sub.1 and X.sub.2 is halogen, cyano or nitro, each of D.sub.1, D.sub.2 and E independently is unsubstituted or substituted alkyl, aralkyl, aryl, alkanoyl, alkylsulfonyl, aroyl, arylsulfonyl, cyanoamidino, or is the group ##STR3## wherein each of R.sub.1 and R.sub.2 independently is hydrogen or unsubstituted or substituted alkyl, aryl or aralkyl, whilst D.sub.1 and D.sub.2 are also hydrogen, or each of the pairs of substituents (R.sub.1 and R.sub.2) and (D.sub.1 and E) together with the nitrogen atom to which said pair is attached is a 5- or 6-membered heterocyclic radical, W is --CO--, --SO.sub.2 --, --COCO--, ##STR4## or unsubstituted or substituted alkylene or phenylene, G is unsubstituted or substituted alkyl, aralkyl or aryl or is a 5- or 6-membered heterocyclic radical, and m is 1 to 6.