Unsaturated carbohydrate derivatives, polymers thereof and...

Details Unsaturated carbohydrate derivatives, polymers thereof and... Unsaturated carbohydrate derivatives, polymers thereof and...

C - Chemistry, Metallurgy

07

H

C07H 13/12 (2006.01) A61L 27/34 (2006.01) C07D 493/04 (2006.01) C07H 15/04 (2006.01) C08B 37/16 (2006.01) C08F 20/36 (2006.01) C08F 290/02 (2006.01) C08F 299/00 (2006.01) G02B 1/04 (2006.01) G02C 7/04 (2006.01)

Patent

CA 2142435

The present invention relates to polymerisable derivatives of carbohydrates comprising a compound of formula (I) R1-(COO-Alk)m-(OCONH-R)n-(NHCO)p-Y-Z (I) wherein R1 is a radically polymerisable hydrocarbon group; m, n and p are 0 or 1; Alk is alkylene having up to 10 carbon atoms; R is a diradical, having up to 20 carbon atoms, of an organic diisocyanate; Z is a monovalent radical, minus a single hydroxy group, of a mono-, di- or tri-saccharide, of an oligosaccharide, of a cyclodextrin (CD) or of an anhydrosaccharide; and Y is -O- or-NH-; with the proviso that when p is zero, m and n are also zero and Y is -NH-; to homopolymers, copolymers, block copolymers, graft copolymers and polymeric networks thereof, to moulded articles, for example contact lenses or biomedicinal articles, comprising the mentioned polymers, as well as to processes for the preparation of the mentioned polymers and articles.

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