| Patent application number | Description | Published |
|---|
| 20080272062 | BROAD SPECTRUM ANTIMICROBIAL PURIFICATION DEVICES AND METHODS FOR PURIFYING FLUIDS - Devices and methods for inactivating microbiological contaminants in a fluid are provided for use in water, air, and other fluid treatment applications. The device includes (i) a housing having at least one fluid inlet and at least one fluid outlet; and (ii) an antimicrobial material secured in the housing between said at least one fluid inlet and said at least one fluid outlet. In one embodiment, the antimicrobial material is a biguanide dihydrate compound, such as a chlorhexidine dihydrate, which exhibits broad spectrum antimicrobial activity. | 11-06-2008 |
| 20080306301 | BROAD SPECTRUM ANTIMICROBIAL PURIFICATION MATERIALS AND METHODS FOR PURIFYING FLUIDS - An antimicrobial composition for use in water, air, and other fluid treatment applications is provided. The composition includes a biguanide dihydrate compound, such as a chlorhexidine dihydrate, which exhibits broad spectrum antimicrobial activity. | 12-11-2008 |
| 20090191250 | Antimicrobial Composite Material and Method for Fluid Treatment - Composite materials with broad spectrum antimicrobial properties and methods and devices for fluid treatment utilizing said materials are provided. The antimicrobial composite materials may include combinations of activated carbon and a biguanide hydrate. A particular composition includes a mixture of carbon particles and particles of chlorhexidine hydrate, which is useful in fixed particle bed water treatment devices and methods. | 07-30-2009 |
| 20100125105 | ANTIMICROBIAL DEVICE AND MATERIALS FOR FLUID TREATMENT - Compositions comprising miscible blends of antimicrobial bisguanide compounds with certain thermoplastic polymers are provided. These antimicrobial polymeric materials may be further processed into particulate or fiber form for use in fluid treatment devices and processes. The antimicrobial bisguanide compound, such as chlorhexidine, is distributed at the molecular level within at least one thermoplastic polymer, such as a polyolefin, in which the antimicrobial bisguanide compound is soluble to form a miscible blend, which may be from about 1% to about 25% by weight antimicrobial bisguanide compound. The antimicrobial polymeric materials may be secured in a device for antimicrobial treatment of a fluid. The devices may comprise a housing having at least one inlet orifice and at least one outlet orifice, the antimicrobial polymeric material being secured within the house and configured to contact a fluid flowing through the housing between the inlet orifice and the outlet orifice. | 05-20-2010 |
| 20110086078 | FIBROUS ANTIMICROBIAL MATERIALS, STRUCTURES, AND BARRIER APPLICATIONS - Fibrous antimicrobial materials for use in structures and barrier applications, such as face masks and wound dressings, have been developed from antimicrobial polymeric materials. The fibrous antimicrobial materials also are particularly suitable for use in air and water filtration. The antimicrobial polymeric materials are prepared from solid solutions of antimicrobial bisguanide compounds blended with certain thermoplastic polymers. The antimicrobial polymeric materials may be extruded into fibers or used in the particulate form for preparation of the nonwoven antimicrobial materials. The antimicrobial bisguanide compound, such as chlorhexidine, are distributed at the molecular level within at least one thermoplastic polymer, such as a polyolefin in which the antimicrobial bisguanide compound is soluble, to form a miscible blend. Methods for their formation and use also are provided. | 04-14-2011 |
