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:
Mar. 12, 2013
Filed:
Jun. 27, 2008
Stefan Müller, Weil am Rhein, DE;
Bernd Herzog, Grenzach-Wyhlen, DE;
Stefan Müller, Weil am Rhein, DE;
Bernd Herzog, Grenzach-Wyhlen, DE;
BASF SE, Ludwigshafen, DE;
Abstract
Disclosed is a method of preparing a composition, comprising a micronized insoluble organic UV absorber, which method comprises grinding the insoluble organic UV absorber, in coarse particle form, in a grinding apparatus comprising yttrium-stabilized zirconium oxide grinding beads, in the presence of alkyl polyglucoside having the formula CHO(CHO)H, in which n is an integer ranging from 8 to 16 and x is the mean polymerisation level of the glucoside moiety (CHO) and ranges from 1.4 to 1.6, or an ester thereof and in the presence of an antifoam agent as dispersingagent auxiliary.