PROCESS FOR PURIFYING GUAR
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United States of America Patent
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Issued Date -
Dec 12, 2013
app pub date -
Aug 14, 2013
filing date -
Feb 5, 2009
priority date (Note) -
Abandoned
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Abstract
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.
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