发明名称 PREPARATION OF NANOSCALAR UV ABSORBERS.
摘要 <p>Disclosed is a method of preparing a composition, comprising a micronised insoluble organicUV 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 CnH2n +1O(C6H10O5)x< /sub>H, in which n is an integer ranging from 8 to 16 and x is the mean polymerisation level of the glucoside moiety (C6H10O5) and ranges from 1.4 to 1.6, or an ester thereof and in the presence of an antifoam agent as dispersingagent auxiliary.</p>
申请公布号 MX2009013736(A) 申请公布日期 2010.04.22
申请号 MX20090013736 申请日期 2008.06.27
申请人 BASF SE 发明人 BERND HERZOG;STEFAN M?LLER
分类号 C07D251/24;A61K8/49 主分类号 C07D251/24
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