James W. Davis,Howard Allen Ketelson,David L. Meadows,John C. Baker
申请号：
US13396305
公开号：
US20120142630A1
申请日:
2012.02.14
申请国别(地区):
US
年份:
2012
代理人:
摘要：
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.
