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:
Nov. 15, 2016
Filed:
Feb. 21, 2014
Applicant:
Hercules Incorporated, Wilmington, DE (US);
Inventors:
Todd A. Brugel, Wilmington, DE (US);
Tuyen T. Nguyen, Newark, DE (US);
Sangrama Sahoo, Wilmington, DE (US);
Divya Tewari, West Chester, PA (US);
Yuda Zong, West Chester, PA (US);
Assignee:
Hercules LLC, Wilmington, DE (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A01N 25/00 (2006.01); A61K 47/00 (2006.01); A61K 9/14 (2006.01); C08B 3/06 (2006.01); A61K 47/38 (2006.01); A61K 31/4418 (2006.01); A61K 31/397 (2006.01); C08B 13/00 (2006.01); C08L 1/32 (2006.01);
U.S. Cl.
CPC ...
A61K 47/38 (2013.01); A61K 31/397 (2013.01); A61K 31/4418 (2013.01); C08B 13/00 (2013.01); C08L 1/32 (2013.01);
Abstract
The presently disclosed and claimed inventive concept(s) relates to a polymer for enhancing drug performance and improving processability. Specifically, the polymer comprises hydroxypropyl methyl cellulose acetate succinate (HPMC-AS). On the HPMC-AS, the percentage of total succinoyl degree of substitution is less than 12% at C6-OH position and greater than 53% at C3-OH, and the percentage of total acetyl degree of substitution is greater than 32% at C6-OH position.