C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/25, 6/66
C08J 9/28 (2006.01) C08J 3/14 (2006.01)
Patent
CA 1321860
MULTI-CELLULAR CELLULOSE PARTICLE AND PROCESS FOR PREPARATION THEREOF ABSTRACT OF THE DISCLOSURE A multi-cellular cellulose particle having a multiplicity of cells spaced from one another by cell membranes is described, which cells have a maximum inscribed sphere diameter of larger than 2 µm. The cells have a continuous hole structure in which cells the cells communicate with one another through openings in the membranes separating two adjacent cells. The multi-cellular cellulose particle is prepared by forming drops of a solution of cellulose or a cellulose derivative, cooling the drops at a temperature lower than the solidification temperature of the solution to freeze the drops, and removing the solvent by extraction or nullifying the dissolving power of the solvent.
574368
Asahi Medical Co. Ltd.
Goudreau Gage Dubuc
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