Process for purifying guar

Details Process for purifying guar Process for purifying guar

C - Chemistry, Metallurgy

08

B

C08B 37/00 (2006.01) A61K 9/00 (2006.01) A61K 47/36 (2006.01)

Patent

CA 2749809

The present invention relates to processes for purifying guar comprising combining borate and guar in an aqueous solution and treating the aqueous solution with an organic solvent to induce precipitation of purified guar. Another embodiment of the present invention is directed to ophthalmic formulations comprising purified guar produced by the processes described.

La présente invention porte sur des procédés de purification de guar comprenant la combinaison de borate et de guar dans une solution aqueuse et le traitement de la solution aqueuse par un solvant organique pour induire la précipitation du guar purifié. Un autre mode de réalisation de la présente invention porte sur des formulations ophtalmiques comprenant du guar purifié produit par les procédés décrits.

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