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:
Sep. 08, 2020
Filed:
May. 07, 2018
Applicant:
Tyrx, Inc., Monmouth Junction, NJ (US);
Inventors:
Satish Pulapura, Bridgewater, NJ (US);
Dan Thanh Le, Franklin Park, NJ (US);
Xiangji Chen, Plymouth, MN (US);
Suping Lyu, Maple Grove, MN (US);
Fatima Buevich, Highland Park, NJ (US);
Assignee:
MEDTRONIC, INC., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 63/40 (2006.01); C08G 63/91 (2006.01); C08G 63/685 (2006.01);
U.S. Cl.
CPC ...
C08G 63/91 (2013.01); C08G 63/6856 (2013.01); C08G 63/916 (2013.01);
Abstract
A method for hydrogenating tyrosine derived polyarylates includes dissolving a second polyarylate with DMF in a flask to produce a first solution. A catalyst is added to the first solution to produce a polymer solution. The polymer solution is filtered through a Celite bed to produce a filtrate. The filtrate is added to water and stirred to precipitate the polyarylate.