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:
Oct. 09, 2007
Filed:
Jul. 08, 2003
Roman Lenz, Liestal, CH;
Gerardus DE Keyzer, Riehen, CH;
Olof Wallquist, Therwil, CH;
Taher Yousaf, Basel, CH;
Roman Lenz, Liestal, CH;
Gerardus De Keyzer, Riehen, CH;
Olof Wallquist, Therwil, CH;
Taher Yousaf, Basel, CH;
Ciba Specialty Chemicals Corporation, Tarrytown, NY (US);
Abstract
The present invention relates to high-molecular-weight polymeric material comprising at least one diketopyrrolopyrrole pigment of formula (1) wherein R, is hydrogen, chlorine, methyl, methoxy, CFor CN, Ris hydrogen, chlorine, methyl, methoxy, CFor CN, A is hydrogen, chlorine, methyl, mehtoxy, CF, CN, unsubstituted or substituted phenyl or a radical of formula (2), (2a) or (2b), wherein Ris hydrogen, chlorine, methyl, methoxy, nitro, CFor CN and Ris hydrogen, chlorine, methyl, methoxy, nitro, CFor CN, or Rand Rtogether with the phenyl ring to which they are bonded form an aryl or a heteroaryl and Ais a radical of formula (2), (2a) or (2b), to the preparation of that material and to the use thereof in colour filters, and to novel diketopyrrolopyrrole pigments.