Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David J. Heiler0
Date of Patent
March 1, 2011
0Patent Application Number
118657460
Date Filed
October 2, 2007
0Patent Primary Examiner
Patent abstract
A polymeric biguanide composition comprising less than 18 mol % of terminal amine groups as measured by 13C NMR. The polymeric biguanide composition also is characterized by a relative increase in the molar concentration of terminal guanidine groups or terminal cyanoguanidino groups. The invention is also directed to ophthalmic compositions comprising the polymeric biguanide compositions. The polymeric biguanide compositions can be used as an antimicrobial component in an ophthalmic lens care solution, or as a preservative to in a pharmaceutical composition or other health care product.
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