公开(公告)号：US11364656B2

公开(公告)日：2022-06-21

申请号：US16503848

申请日：2019-07-05

Applicant: CASE WESTERN RESERVE UNIVERSITY

Inventor： Rigoberto Advincula ,  Pengfei Chao ,  Eric Baer

IPC: B29B9/04 ,  B32B27/08 ,  B29B9/12 ,  B32B27/24 ,  B29B9/16 ,  B01J2/20

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.