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. 15, 1990
Filed:
Jun. 27, 1988
Applicant:
Inventors:
Heinz Hefti, Reinach, CH;
Dieter Reinehr, Kandern, DE;
Kurt Weber, Basle, CH;
Claude Eckhardt, Riedisheim, FR;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C11D / ;
U.S. Cl.
CPC ...
25230121 ; 8648 ; 8918 ; 252 891 ; 252550 ; 252558 ; 562427 ; 562 83 ; 562 84 ; 562 87 ; 585 25 ;
Abstract
Liquid detergent compositions which are stable on storage and contain fluorescent whitening agents from the class of the disulfonated distyrylbiphenyl and distyrylphenyl compounds; they do not produce bleach spots on direct contact with textile fabric. Some of the fluorescent whitening agents used are novel.