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. 21, 2020
Filed:
Nov. 14, 2016
Applicant:
Basf SE, Ludwigshafen, DE;
Inventors:
Timothy D. Klots, Plymouth, MI (US);
Amirpouyan Sardashti, Ann Arbor, MI (US);
Frank Reinhold, Plymouth, MI (US);
Assignee:
BASF SE, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 8/12 (2006.01); C08L 25/08 (2006.01); C08F 222/06 (2006.01); C08F 8/30 (2006.01); C08F 8/48 (2006.01); C08F 220/18 (2006.01); C08L 33/12 (2006.01); C08F 120/18 (2006.01); C08L 35/06 (2006.01); C08F 8/44 (2006.01);
U.S. Cl.
CPC ...
C08L 25/08 (2013.01); C08F 8/12 (2013.01); C08F 8/30 (2013.01); C08F 8/44 (2013.01); C08F 8/48 (2013.01); C08F 120/18 (2013.01); C08F 220/18 (2013.01); C08F 222/06 (2013.01); C08L 33/12 (2013.01); C08L 35/06 (2013.01); C08F 2800/10 (2013.01); C08F 2810/50 (2013.01); C08L 2205/025 (2013.01);
Abstract
A process of preparing an aqueous solution of a cycloimide-containing polymer includes heating an aqueous solution of a cycloanhydride-containing polymer with a first neutralizing agent at a ratio of cycloanhydride to neutralizing agent of about 1:1 to about 1:1.5 at a temperature and for a time sufficient to form the aqueous solution of the cycloimide-containing polymer having a cycloimide to acid group ratio of about 1:2 to about 1.5:2.