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:
May. 19, 1987
Filed:
Jul. 27, 1984
Applicant:
Inventor:
Hans R Meyer, Binningen, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
25230122 ; 25230123 ; 25230124 ; 544208 ; 544211 ; 544217 ; 544218 ; 544219 ; 544180 ; 544311 ; 544313 ; 544314 ; 544317 ; 544318 ; 544319 ; 544321 ; 544323 ; 544325 ; 544327 ; 544329 ; 544334 ; 544335 ; 544242 ; 548131 ; 548215 ; 548262 ;
Abstract
Novel 4-heterocyclylvinyl-4'-styryl-biphenyls of the formula ##STR1## are described, i which A is an isoxazolyl, oxadiazolyl, pyrimidinyl or triazinyl radical which is unsubstituted or substituted by a non-chromophoric substituent, R.sub.1 is hydrogen or a non-chromophoric substituent and R.sub.2 is hydrogen, halogen, or alkyl; processes for the preparation of these compounds are also described. The novel 4-heterocyclylvinyl-4'-styryl-biphenyls can be used as fluorescent brighteners for high-molecular organic materials, in particular materials of polyamide and polyester, especially for polyester textiles.