Coated titanium dioxide particles
    1.
    发明授权
    Coated titanium dioxide particles 失效
    涂覆二氧化钛颗粒

    公开(公告)号:US07135206B2

    公开(公告)日:2006-11-14

    申请号:US10493062

    申请日:2002-10-30

    申请人: Martin Schichtel

    发明人: Martin Schichtel

    摘要: A method for producing nanoscale titanium dioxide particles which are coated with an oxide, a hydroxide or an oxide hydroxide of Al, Ce, Zr and/or Si wherein the enzymatic precipitant system urease/urea is used. Said coated titanium dioxide particles can have an average size of less than 50 nm, the coating providing effective protection against photocatalytic reactions. The coated particles are suitable, in particular, as UV absorbers in a transparent organic matrix.

    摘要翻译: 一种用Al,Ce,Zr和/或Si的氧化物,氢氧化物或氧化氢氧化物涂覆的纳米二氧化钛颗粒的制造方法,其中使用了酶沉淀剂体系脲酶/尿素。 所述涂覆的二氧化钛颗粒可以具有小于50nm的平均尺寸,所述涂层提供有效的防止光催化反应的保护。 涂覆的颗粒特别适用于透明有机基质中的UV吸收剂。