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:
Mar. 21, 2017
Filed:
Dec. 17, 2013
Applicant:
Eastman Chemical Company, Kingsport, TN (US);
Inventors:
Kenny Randolph Parker, Afton, TN (US);
Shane Kipley Kirk, Church Hill, TN (US);
Assignee:
Eastman Chemical Company, Kingsport, TN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 12/00 (2006.01); D04H 1/435 (2012.01);
U.S. Cl.
CPC ...
D04H 1/435 (2013.01);
Abstract
A process for recovering a primary polymer concentrate stream is provided. The process comprises routing a second mother liquor stream to a primary concentration zone to remove water from the second mother liquor stream to produce the primary polymer concentrate stream; wherein the primary concentration zone comprises at least one ultrafiltration membrane. A process is also provided to recover sulfopolyester from the primary polymer concentrate stream and to produce articles therefrom.