Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Bradley D. Craig0
Date of Patent
May 13, 2014
Patent Application Number
13123749
Date Filed
October 9, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
Fillers containing silica-zirconia nanoclusters are disclosed. The fillers may be prepared by mixing a sol of silica nanoparticles with a sol of preformed, crystalline nanozirconia particles. The fillers provide desirable optical properties, such as opalescence, and are useful in dental compositions.
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