New UV absorbers for cosmetic sunscreens -: A breakthrough for the photoprotection of human skin

被引：29

作者：

Herzog, B ^{[1
]}

Hüglin, D ^{[1
]}

Borsos, E ^{[1
]}

Stehlin, A ^{[1
]}

Luther, H ^{[1
]}

机构：

[1] Chiba Specialty Chem Inc, D-79630 Grenzach Wyhlen, Germany

来源：

CHIMIA | 2004年 / 58卷 / 7-8期

关键词：

particle size; photostability; sunscreen; UV absorber; UVA; UVB;

D O I：

10.2533/000942904777677632

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two new UV filters for use in cosmetic sunscreens have been developed. Bis-ethylhexyloxyphenol methoxyphenyl triazine (BEMT) is a hydroxy-phenyl-triazine derivative, which has been designed for optimal spectral performance, excellent photostability, and solubility in cosmetic oils. Methylene bis-benzotriazolyl tetramethylbutylphenol (MBBT) is the active ingredient of a particulate UV-filter system, which is available as a 50% dispersion of MBBT Since the UV-attenuating efficacy depends strongly on particle size, the material is micronised to particle sizes below 200 nm. The mode of action of this photostable filter system is governed to about 90% by absorption and 10% by scattering of UV light. Both filters show broad-spectrum characteristics with significant protection in the UVA range.

引用

页码：554 / 559

页数：6

共 23 条

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