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US 2019/0194083 A1Published application
Polyhipe-based substance-releasing systems
AssigneeTechnion Research & Development Foundation Limited
InventorsMichael S. SILVERSTEIN, Katya KAPILOV-BUCHMAN, Reinhard EFFENBERGGER, Dorit CANFI
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Abstract
A polyHIPE-based substance-releasing system capable of releasably encapsulating a highly concentrated solution and/or a room temperature solid while minimizing or avoiding burst release from the closed-cell microstructure of an elastic polyHIPE.
Claims48
A composition-of-matter comprising an elastomer and a substance encapsulated therein, wherein:
- said elastomer is having a microstructure templated by an external phase of a high internal phase emulsion (HIPE);
- said microstructure being a closed-cell microstructure and said substance being encapsulated in pores of said closed-cell microstructure;
- said substance comprises less than 80% water;
- and
- said substance is releasable through said elastomer when the composition-of-matter is exposed to an aqueous environment.
2 more elements
A composition-of-matter comprising an elastomer and a substance encapsulated therein, wherein:
- said HIPE is a water-in-oil emulsion;
- said elastomer is having a microstructure templated by an external phase of a high internal phase emulsion (HIPE);
- said microstructure being a closed-cell microstructure and said substance being encapsulated in pores of said closed-cell microstructure;
- said elastomer comprises residues of at least one acrylate monomer having a chain longer than 6-atoms;
- said substance comprises less than 80% water;
- and
- said substance is releasable through said elastomer when the composition-of-matter is exposed to an aqueous environment.
4 more elements
(canceled)
8-15. (canceled)
21-22. (canceled)
(canceled)
Dependencies are inferred from the claim text.