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Method of producing porous vitrified grinder
   
Document Number
US Patent 5151108
Issued Date
September 29, 1992
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Abstract
Disclosed is a method of producing porous vitrified grinder, where melamine cyanurate is used as a pore-imparting agent. The grinder has a long life and has an improved grinding capacity.
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Number of Claims:
5
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Published
September 29, 1992
Application Number
07/680,142
Filed
April 3, 1991
US Classification
51/296  
Int'l Classification
B24D   3/20   (20060101)   B24D   3/32   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
Apr 05, 1990 [JP] 2-90927
USPTO Field of Search
51/296  
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