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:
Feb. 20, 2024
Filed:
Mar. 05, 2020
Applicant:
Evonik Operations Gmbh, Essen, DE;
Inventors:
Assignee:
Evonik Operations GmbH, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/48 (2006.01); A61J 3/07 (2006.01); B29C 41/14 (2006.01); B29K 33/00 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
A61K 9/4816 (2013.01); A61J 3/077 (2013.01); B29C 41/14 (2013.01); B29K 2033/12 (2013.01); B29K 2105/0064 (2013.01); B29K 2105/0094 (2013.01);
Abstract
A capsule shell contains 40 to 99% by weight of a core-shell polymer and 1 to 60% by weight of a cellulose. The core-shell polymer contains 50 to 90% by weight of a core, containing polymerized units of 65 to 75% by weight of ethyl acrylate and 25 to 35% by weight of methyl methacrylate; and 10 to 50% by weight of a shell, containing polymerized units of 45 to 55% by weight of ethyl acrylate and 45 to 55% by weight of methacrylic acid.