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AssigneeQuick-Med Technologies, Inc.
InventorsWilliam Toreki, Gerald Olderman, Gregory Staab
Estimating the term…
A novel gypsum board having improved antimicrobial and antibacterial properties is disclosed. The board comprises a gypsum core, front and back paper facings, and a polymeric antimicrobial or antibacterial compound effective at inhibiting fungal growth. Preferred polymeric antimicrobial and antibacterial compounds include polyDADMAC, polyTMMC, and quaternized polyvinyl pyridine derivatives. The novel gypsum board further comprises a non-polymeric antimicrobial or antibacterial compound. Preferred non-polymeric antimicrobial or antibacteral compounds include cetyl pyridinium chloride and sodium pyrithione. The polymeric antimicrobial or antibacterial compound can be present in the gypsum core and/or on one or both of the paper facings. The non-polymeric antimicrobial or antibacterial compound may be encapsulated in a material or ionically associated with the polymeric antimicrobial or antibacterial compound to allow releases of the non-polymeric antimicrobial or antibacterial compound over time and/or upon exposure to moisture. Methods for preparing the aforementioned novel gypsum board are also disclosed.
An antimicrobial gypsum board comprising a polymeric antimicrobial compound and an antimicrobial non-polymeric compound, wherein said polymeric antimicrobial compound is non-leachably bonded to a component of said gypsum board, and wherein said polymeric antimicrobial compound is a complexing agent which stabilizes the diffusible said antimicrobial non-polymeric compound.
An antibacterial gypsum board comprising a polymeric antibacterial compound and an antibacterial non-polymeric compound, wherein said polymeric antibacterial compound is non-leachably bonded to a component of said gypsum board, and wherein said polymeric antibacterial compound is a complexing agent which stabilizes the diffusible said antibacterial non-polymeric compound.
An improved method for manufacturing an antimicrobial gypsum board which comprises the steps:
An improved method for manufacturing an antibacterial gypsum board which comprises the steps:
Dependencies are inferred from the claim text.