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:
Jan. 23, 2024
Filed:
Oct. 22, 2020
Applicant:
Solenis Technologies, L.p., Wilmington, DE (US);
Inventor:
Daniel F. Varnell, Wilmington, DE (US);
Assignee:
Solenis Technologies, L.P., Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F 6/12 (2006.01); C08F 6/28 (2006.01); B01D 17/04 (2006.01); C08F 20/56 (2006.01);
U.S. Cl.
CPC ...
C08F 6/12 (2013.01); B01D 17/042 (2013.01); C08F 6/28 (2013.01); C08F 20/56 (2013.01); B01D 2257/80 (2013.01);
Abstract
Provided are methods for the purification of polymer solutions. In particular, the method enables the separation of impurities from an oxazoline polymer solution by raising the temperature of the polymer solution above its lower critical solution temperature (LCST), wherein a water rich phase and a polymer rich phase separation occurs. The phases are then separated with the polymer rich phase containing a lower amount of impurities than before separation.