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:
Dec. 21, 1982
Filed:
Jul. 06, 1979
Applicant:
Inventor:
Werner Fringeli, Laufen, CH;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25230122 ;
Abstract
Concentrated aqueous solutions of sulfo group-containing fluorescent brighteners, which are stable on storage, containing a stilbene fluorescent brightener substituted by sulfo groups and a lactam of the formula ##STR1## in which m is 0 or an integer between 1 and 9, and their use for the fluorescent brightening of high molecular weight organic material.