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:
Jun. 21, 2022
Filed:
Jul. 05, 2019
Applicant:
Case Western Reserve University, Cleveland, OH (US);
Inventors:
Rigoberto Advincula, Shaker Heighls, OH (US);
Pengfei Chao, Cleveland, OH (US);
Eric Baer, Cleveland Heights, OH (US);
Assignee:
CASE WESTERN RESERVE UNIVERSITY, Cleveland, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B29B 9/04 (2006.01); B32B 27/08 (2006.01); B29B 9/12 (2006.01); B32B 27/24 (2006.01); B29B 9/16 (2006.01); B01J 2/20 (2006.01);
U.S. Cl.
CPC ...
B29B 9/04 (2013.01); B01J 2/20 (2013.01); B29B 9/12 (2013.01); B29B 9/16 (2013.01); B32B 27/08 (2013.01); B32B 27/24 (2013.01); B29B 2009/161 (2013.01); B32B 2250/24 (2013.01);
Abstract
A method of forming particles for controlled guest agent release includes coextruding first and second polymer materials to form a multilayer polymer composite sheet comprising alternating first and second polymer layers, dividing the multilayer sheet into particles, immersing the particles in a solvent containing the guest agent such that the first layers swell and the guest agent is loaded into the swollen first layers.