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. 02, 2005
Filed:
Dec. 13, 2001
Rainer Hildebrand, Lörrach, DE;
Peter Sutter, Muttenz, CH;
Rainer Hildebrand, Lörrach, DE;
Peter Sutter, Muttenz, CH;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
The present application relates to a process for preparing dyed plastics or polymeric dye particles characterized in that it comprises mixing a high molecular weight organic material with a coloristically effective amount of at least one dye of the formula where Ris hydrogen, hydroxyl or a radical —NHCO—R, where Ris C-Calkyl or unsubstituted or C-Calkyl- or halogen-substituted phenyl, Ris hydrogen, hydroxyl or a radical W—R, where W is —NHCO— or —S— and Ris C-Calkyl or unsubstituted or C-Calkyl- or halogen-substituted phenyl, Ris hydrogen, Ris hydrogen or hydroxyl, Ris hydrogen, or Rand Rcombine to form the radical of the formula, where the rings A and B may independently bear further substituents.