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. 18, 1982
Filed:
Jul. 16, 1980
Applicant:
Inventors:
Thomas Martini, Bad Soden am Taunus, DE;
Rudiger Erckel, Eppstein/Taunus, DE;
Horst Fruhbeis, Kelkheim/Taunus, DE;
Gunter Rosch, Bad Soden am Taunus, DE;
Heinz Probst, Sulzbach, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
25230124 ; 25230121 ; 25230122 ; 25230125 ; 25230126 ; 25230127 ; 25230128 ; 25230129 ;
Abstract
Mixtures of optical brighteners consisting of 5 to 95 parts by weight of a mixture consisting of 0 to 80% by weight of the compound of the formula 1 ##STR1## 20 to 100% by weight of the compound of the formula 2 ##STR2## and 0 to 80% by weight of the compound of the formula 3 ##STR3## and 95 to 5% by weight of one or more other optical brighteners.