Antimicrobial device and materials for fluid treatment

Details Antimicrobial device and materials for fluid treatment Antimicrobial device and materials for fluid treatment

C - Chemistry, Metallurgy

02

F

C02F 1/50 (2006.01) C02F 1/00 (2006.01)

Patent

CA 2744284

Compositions comprising irascible 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 an ti microbial 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.

L'invention porte sur des compositions comprenant des mélanges miscibles de composés bisguanides antimicrobiens avec certains polymères thermoplastiques. Ces matériaux polymères antimicrobiens peuvent être encore transformés en particules ou fibres en vue dune utilisation dans des dispositifs et procédés de traitement de fluides. Le composé bisguanide antimicrobien, tel que la chlorhexidine, est distribué au niveau moléculaire dans au moins un polymère thermoplastique, tel qu'une polyoléfine, dans lequel le composé bisguanide antimicrobien est soluble pour former un mélange miscible, qui peut être à environ 1 % à environ 25 % en poids de composé bisguanide antimicrobien. Les matériaux polymères antimicrobiens peuvent être fixés dans un dispositif pour un traitement antimicrobien d'un fluide. Les dispositifs peuvent comprendre un boîtier ayant au moins un orifice d'entrée et au moins un orifice de sortie, le matériau polymère antimicrobien étant fixé à l'intérieur du boîtier et configuré pour venir en contact avec un fluide sécoulant à travers le boîtier entre l'orifice d'entrée et l'orifice de sortie.

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