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:
Jul. 03, 2012
Filed:
Aug. 15, 2011
Applicant:
David Bruce Hall, Ballston Lake, NY (US);
Inventor:
David Bruce Hall, Ballston Lake, NY (US);
Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/00 (2006.01); C08G 73/00 (2006.01); C08G 6/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for purifying a polymer comprising providing a first mixture comprising at least one solvent and at least one polymeric material, diluting the first mixture with veratrole to produce a second mixture in which the polymeric material is substantially dissolved at a temperature less than 100° C., performing at least one step selected from (i) contacting the second mixture with an aqueous wash solution, and (ii) filtering the second mixture.