Abrading – Abrading process – Utilizing fluent abradant
Reexamination Certificate
2011-06-14
2011-06-14
Eley, Timothy V (Department: 3723)
Abrading
Abrading process
Utilizing fluent abradant
C451S037000, C451S041000, C451S057000, C451S059000, C451S060000, C451S063000
Reexamination Certificate
active
07959493
ABSTRACT:
Spots generated on a glass substrate after a polishing step are reduced. The present invention relates to a method for polishing a glass substrate including injecting a silica abrasive and a high-boiling solvent in a final glass substrate polishing step. The high-boiling solvent is preferably a solvent having a molecular weight of 300 or lower and a boiling point of 150° C. or higher. As Examples of the high-boiling solvent having a molecular weight of 300 or lower and a boiling point of 150° C. or higher includes ethylene glycol, propylene glycol and glycerine.
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Horie Mitsuru
Ito Masabumi
Shimodaira Noriaki
Tomonaga Hiroyuki
Asahi Glass Company Limited
Eley Timothy V
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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