发明名称 Ultraviolet absorbent
摘要 To provide an ultraviolet absorbent having high UV shieldability, especially UV-A shieldability, high transparency and good dispersibility. An ultraviolet absorbent, which comprises a flaky substrate coated with ultra-fin zinc oxide particles having a mean particle size of not larger than 100 nm, and which is optionally treated with an organic silicone compound; and a method for producing the ultraviolet absorbent, which comprises calcining particles as coated with basic zinc carbonate in the presence of a complex-forming agent.
申请公布号 US2001031272(A1) 申请公布日期 2001.10.18
申请号 US20010839310 申请日期 2001.04.23
申请人 MERCK PATENT GESELLSCHAFT MIT BESCHRANKT 发明人 NOGUCHI TAMIO;WATANABE YUKITAKA
分类号 A61K8/00;A61K8/11;A61K8/27;A61Q1/00;A61Q1/12;A61Q17/04;C01G9/02;C08K9/02;C08L83/07;C08L101/00;C09C1/00;C09C1/40;C09C3/06;C09C3/12;C09D5/32;C09K3/00;(IPC1-7):A61K6/00;A61K7/42;A61K7/00;C04B2/00;C09C1/04;C04B14/00 主分类号 A61K8/00
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