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. 26, 1989
Filed:
Dec. 05, 1988
Applicant:
Inventors:
Heinz Hefti, Reinach, CH;
Klaus Artz, Muttenz, CH;
Kurt Weber, Basel, CH;
Kurt Burdeska, Basel, CH;
Dieter Reinehr, Kandern, DE;
Assignee:
Ciba-Geigy Corporation, Ardsley, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25230122 ; 25230121 ; 25230124 ; 25230128 ;
Abstract
Mixtures of fuorescent whitening agents comprising 5 to 45 parts by weight of 4,4'-bis(cyanovinyl)stilbene and 95 to 55 parts by weight of a compound of formula ##STR1## and the use of said mixtures and compositions containing them for whitening polyester fibres and textile material containing polyester fibres.