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Effect pigments on the basis of mica flakes 发明申请

2023-05-18 3010 261K 0

专利信息

申请日期 2025-09-19 申请号 EP07010052
公开(公告)号 EP1865032A2 公开(公告)日 2007-12-12
公开国别 EP 申请人省市代码 全国
申请人 Merck Patent GmbH
简介 Effect pigments exhibiting a synthetic mica panels in which 90% of the particle with an equivalent distribution of 2-40 mu m, and a thickness distribution of 100-3500 nm and a coating by a refractive index >=1.9 containing titanium dioxide and zinc oxide and/or one or more heavily soluble alkaline-earth compound. Independent claims are included for : (1) a formulations comprising one or more effect pigments; (2) a production of the effect pigment comprising coating the synthetic mica panel wet chemical via hydrolytic decomposition of metal salts in aqueous medium; (3) a pigment preparation comprising one or more binder, optionally one or more additives and the effect pigment; and (4) drying preparations comprising the effect pigments.


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