Original document(22 pages) Authorized document(10 pages) 中文版
    Solid, transparent, non-vitreous, zirconia and zirconia-silica ceramic microspheres, useful as lens elements in retroreflective pavement markings. The microspheres are characterized by: (a) containing at least one additive metal oxide selected from alumina, magnesia, yttria and mixtures thereof; (b) an index of refraction greater than 1.6; and (c) being virtually free of cracks. These microspheres are formed by a sol-gel technique of extractive gelation of a sol in liquid medium such as hot peanut oil.
Application Number
申请号		 86107671 Application Date
申请日		 1986.11.08
Title 名称 Transparent non-vitreous zirconia microspheres and process for preparing thereof
Publication Number
公开号		 1012063 Publication Date
公开日		 1987.07.15
Approval Pub. Date 1992.08.05 Granted Pub. Date 1992.08.05
International Classification 分类号 B01J13/02;C04B35/48
Applicant(s) Name
申请人		 Minnesota Mining and Manufacturing Co.
Address 地址
Inventor(s) Name 发明人 Roger Wayne Lange;Thomas Edward Wood
Attorney & Agent 代理人 DUAN CHENGEN XU RUXUN
More information 更  多  信  息


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