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:
Sep. 21, 1999
Filed:
Jul. 23, 1997
Applicant:
Inventors:
Jurg Heller, Oberwil, CH;
Jean-Luc Mura, Rixheim, FR;
Assignee:
Clariant Finance (BVI) Limited, Tortola, VG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06M / ; F21V / ;
U.S. Cl.
CPC ...
252589 ; 811556 ; 8442 ; 8607 ; 252-861 ; 252-881 ; 252-891 ; 568333 ;
Abstract
An aqueous dispersion comprising at least one of the UV absorbing compounds of the following formulae I, II or III as below defined: A--B (I); A--C--A (II); or B--A--B (III); wherein in Formula (I) and (II) ##STR1## and in Formula III, A is ##STR2## Y being a direct bond, a substitute C.sub.1-4 alkylene group, ##STR3## and R.sub.1 to R.sub.5 independently of each other are hydrogen; C.sub.4-4 alkyl, the alkyl optionally being substituted; aryl; heterocyclyl; or any two of R.sub.1 to R.sub.5 which are adjacent, together form part of a ring, with the proviso that no more than four of R.sub.1 to R.sub.5 are hydrogen.