Chlorhexidine complex
April 27, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3842168 Treatment of teeth Polymeric diffusion matrix containing phenylpropanolamine Salt of chlorhexidine Pharmaceutical preparation for remedy of periodontal disease and process for production thereof Chlorhexidine salts and compositions of same Dentifrice gel Fungicidal and bactericidal method Patent #: 4877617 InventorAssigneeApplicationNo. 344257 filed on 04/27/1989US Classes:424/49, DENTIFRICES (INCLUDES MOUTH WASH)424/78.07, Anti-infective514/54, Polysaccharide514/779, Algin or derivative514/781, Cellulose or derivative514/901, Mouthwash536/3Algin or derivativeExaminersPrimary: Griffin, Ronald W.Attorney, Agent or FirmInternational ClassA61K 007/16AbstractA chlorhexidine complex is prepared by complexing chlorhexidine (a divalent, cationic antiseptic) with an anionic polymer such as algin or carboxymethylcellulose. The complex is insoluble but can be granulated or crushed to a fine powder. In powdered form the complex forms stable aqueous dispersions. The chlorhexidine complex is suitable for inclusion in oral hygiene compositions such as dentrifrices, and in other antibacterial compositions such as opthalmic under-eye-lid treatment capsules topical preparations and ocular solutions. |
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