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1. (WO2001030145) ACTIVE MATERIAL WITHIN HYDROGEL MICROBEADS

Pub. No.:    WO/2001/030145    International Application No.:    PCT/US2000/027947
Publication Date: Fri May 04 01:59:59 CEST 2001 International Filing Date: Wed Oct 11 01:59:59 CEST 2000
IPC: A01N 25/10
A01N 25/28
A61K 8/04
A61K 8/34
A61K 8/35
A61K 8/37
A61K 8/73
B01J 13/00
B01J 13/14
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: QUONG, Douglas
Title: ACTIVE MATERIAL WITHIN HYDROGEL MICROBEADS
Abstract:
A method of delivering active material using microbeads comprising droplets of active material entrained in a hydrophilic matrix. Compositions comprising the microbeads may be sprayable. The microbeads of the invention may be controllable by exposing the microbeads to high or low humidity or moisture.