Preparation of particulate gels

Details Preparation of particulate gels Preparation of particulate gels

B - Operations, Transporting

01

J

402/3, 400/7013

B01J 13/00 (2006.01) A01N 25/10 (2006.01) C08J 9/28 (2006.01)

Patent

CA 1239724

ABSTRACT OF THE DISCLOSURE A process for the preparation of a particulate hydrogel of a homo- or copolymer which can exhibit syneresis is provided herein. The process comprises (i) contacting the hydrogel with a swelling agent; (ii) subjecting the swollen hydrogel to shear stress such that the swollen hydrogel is comminuted to particles; and (iii) drying the swollen particulate hydrogel by varying its temperature so that it exhibits syneresis.

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