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. 14, 2005
Filed:
Apr. 30, 2002
Athanassios Tzikas, Pratteln, CH;
Urs Lauk, Zürich, CH;
Romeo Dreier, Fehren, CH;
Antoine Clément, Basel, CH;
Athanassios Tzikas, Pratteln, CH;
Urs Lauk, Zürich, CH;
Romeo Dreier, Fehren, CH;
Antoine Clément, Basel, CH;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
The present invention relates to pyridone dyes of formula (1), wherein R is a radical —(CR'H)—W, R′ is hydrogen, C-Calkyl or phenyl, Y is cyano, —CONHor —CHSOH, W is hydrogen, a radical —NRRor a radical —OR, Rand Rare each independently of the other hydrogen, unsubstituted or hydroxy- or phenyl-substituted C-C-alkyl, it being possible for the alkyl chain from Cupwards to be interrupted by one or more oxygen atoms, or a radical of formula (3), (4) or (5), or Rand Rtogether with the nitrogen atom in —NRRform a heterocyclic ring, Ris hydrogen, unsubstituted or hydroxy-substituted C-Calkyl, phenyl or a radical of formula (6), Ris alkyl or aryl, Rand Rare each independently of the other alkyl, aryl or heteroaryl, n is an integer from 2 to 6, and m is an integer from 1 to 6, a process for the preparation thereof and their use in the production of coloured plastics or polymeric colour particles