Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 29, 2008
Patent Application Number
10478102
Date Filed
May 21, 2002
Patent Citations Received
...
Patent Primary Examiner
Patent abstract
The present invention relates to a method for producing cubic boron nitride abrasive grains used for producing a grinding wheel, etc., and to cubic boron nitride abrasive grains. The method comprises maintaining a mixture containing hexagonal boron nitride and seed crystals of cubic boron nitride under pressure and temperature conditions where cubic boron nitride remains thermodynamically stable, characterized in that the seed crystals contain cubic boron nitride twin crystals.
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