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:
Apr. 11, 2023
Filed:
Jan. 30, 2020
Applicant:
Shpp Global Technologies B.v., Bergen op Zoom, NL;
Inventors:
James Patrick Schulte, II, Mt. Vernon, IN (US);
Juan Justino Rodriguez Ordonez, Cartagena, ES;
Assignee:
SHPP GLOBAL TECHNOLOGIES B.V., Bergen op Zoom, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 51/47 (2006.01); C07C 63/331 (2006.01); C07C 51/42 (2006.01);
U.S. Cl.
CPC ...
C07C 51/47 (2013.01); C07C 51/42 (2013.01); C07C 63/331 (2013.01);
Abstract
A method for purification of a biphenol tetraacid composition includes contacting the biphenol tetraacid composition with a solvent including a C1-6 alcohol to form a slurry and isolating the purified biphenol tetraacid from the slurry. The biphenol tetraacid composition includes a biphenol tetraacid and a biphenol. A purified biphenol tetraacid composition is also described.