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. 02, 2003
Filed:
Apr. 05, 2001
Angela Ohlemacher, Schopfheim-Wiechs, DE;
Carsten Benecke, Weil am Rhein, DE;
Klaus Schmitt, Lörrach, DE;
Rolic AG, Zug, CH;
Abstract
Compounds of formula (I) wherein A, C and D represent (1) or (2), B represents (3) or (4) wherein at least one of the substituents is other than hydrogen and also at least one of the phenylene rings may be replaced by a 1,4-phenylene ring in which one or two non-adjacent CH groups have been replaced by nitrogen; k, l, m are 0 or 1, wherein k+l+m must be equal to 1 or 2; Z , Z , Z each independently of the others represents a single bond, —CH CH —, —CH O—, —OCH —, —COO—, —OOC—, —CH═CH—COO—, —OOC—CH═CH—, —(CH ) —, —O(CH ) —, —(CH ) O— or —C≡C—; R , R represent crosslinkable groups, and S , S represent spacer units.