Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Tong Sun0
Mahesh Malusare0
Pushpa Narayanan0
Sunil Ashtekar0
Guohua Xiu0
Gurram Kishan0
Jan Plen Lens0
Date of Patent
May 5, 2009
0Patent Application Number
112779560
Date Filed
March 30, 2006
0Patent Primary Examiner
Patent abstract
A process comprising the steps of dissolving a dihydric phenol in a solvent to form a solution A; contacting the solution A with a zeolite; filtering the zeolite to form a solution B; adding an anti-solvent to the solution B to form a solution C; and distilling the solution C; wherein the dihydric phenol is represented by Formula (I):
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