The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 02, 2009
Filed:
Mar. 30, 2006
Sunil Ashtekar, Karnataka, IN;
Mahesh Malusare, Karnataka, IN;
Gurram Kishan, Karnataka, IN;
Pushpa Narayanan, Karnataka, IN;
Ramanarayanan Gv, Karnataka, IN;
Arun Dixit, Karnataka, IN;
Pradeep Nadkarni, Karnataka, IN;
Jan Plen Lens, Breda, NL;
Sunil Ashtekar, Karnataka, IN;
Mahesh Malusare, Karnataka, IN;
Gurram Kishan, Karnataka, IN;
Pushpa Narayanan, Karnataka, IN;
Ramanarayanan GV, Karnataka, IN;
Arun Dixit, Karnataka, IN;
Pradeep Nadkarni, Karnataka, IN;
Jan Plen Lens, Breda, NL;
SABIC Innovative Plastics IP B.V., Bergen op Zoom, NL;
Abstract
A process comprising the steps of dissolving a dihydric phenol in a solvent to form a solution A, contacting the solution A with an adsorbent material selected from the group consisting of metal oxides, modified metal oxides, activated carbons, and clays, filtering the adsorbent material 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): wherein R is a hydrogen atom or an aliphatic functionality having 1 to 6 carbon atoms and n is an integer having a value of 1 to 4.