发明申请
US20050116205A1 Chain inorganic oxide fine particle groups, process for preparing dispersion of the fine particle groups, and uses of the fine particle groups 失效
链状无机氧化物微粒子群,微粒子群分散体的制造方法,细粒子群的使用

Chain inorganic oxide fine particle groups, process for preparing dispersion of the fine particle groups, and uses of the fine particle groups
摘要:
A chain antimony oxide fine particle group comprising antimony oxide fine particles which have an average particle diameter of 5 to 50 nm, are connected in the form of a chain and have an average connection number of 2 to 30 and preferably used for forming a hard coating film. The fine particle group can be prepared by a process comprising treating an alkali antimonate aqueous solution with a cation exchange resin to prepare an antimonic acid (gel) dispersion and then treating the dispersion with an anion exchange resin and/or adding a base to the dispersion. Also provided is a substrate with a film comprising a substrate and a hard coating film. The hard coating film includes a chain inorganic oxide fine particle group, in which inorganic oxide fine particles of 2 to 30 on the average are connected in the form of a chain, and a matrix. The inorganic oxide particles may be silica particles, silica-alumina particles being preferable, and porous particles and/or hollow particles having a cavity inside being more preferable.
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