发明授权
US6051155A Preparations containing wax 失效
含蜡的制剂

Preparations containing wax
摘要:
Wax-containing preparation for treating wood and leather surfaces, comprising very fine transparent titanium dioxide particles with a crystallite size of between 5 and 50 nm offer long-term protection of wood and leather surfaces against the harmful effects of light at wavelengths between 280 and 800 nm.
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