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. 08, 1984
Filed:
Sep. 15, 1983
Applicant:
Inventors:
Thomas Martini, Bad Soden am Taunus, DE;
Erich Schinzel, Hofheim am Taunus, DE;
Hans Frischkorn, Hofheim am Taunus, DE;
Herbert Friedrich, Heusenstamm, DE;
Heinz Probst, Sulzbach, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; D06L / ;
U.S. Cl.
CPC ...
25230122 ; 25230128 ; 25230129 ; 25230132 ;
Abstract
Mixtures of optical brighteners consisting of 1 to 60% by weight of a brightener from the bisbenzoxazolylnaphthalene series and 99 to 40% by weight of one or more brighteners of the formulae 2 to 10 listed in the description.