Antimicrobial barrier coatings and methods of use

Abstract

Barrier / sealer compositions impart at least biostatic activity to porous substrates, particularly architectural building materials, such as wood products, providing extended protection against the development of damaging fungi, such as mold, mildew and yeasts, as well as bacterial infestation. The protective sealer compositions comprise at least one antimicrobial agent, such as a fungicide and a film forming combination comprising a continuous film forming polymer and a water repellent compound. The spectrum of activity can also be potentiated to impart expanded biocidal activity to effectively kill and clean infected porous substrates and extend the useful life expectancy of architectural building materials by the introduction of other additives, including peroxide and antibacterial quaternary ammonium compounds.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001] This application claims the benefit of U.S. Provisional Application 60 / 516,021, filed Oct. 31, 2003.TECHNICAL FIELD [0002] The present invention relates generally to protective barrier or sealer coating compositions and methods of use for porous surfaces, and more particularly, to compositions for preventing and / or treating surfaces of building and construction materials, including wood products, gypsum board, ceiling tile, brick, concrete, etc., from infestation by microorganisms. BACKGROUND OF THE INVENTION [0003] Fungi, particularly mold, mildew and yeasts, including bacteria infestations in homes and commercial buildings have been an ever increasing health problem. Interior environments of homes, schools, hospitals and commercial buildings, new and old, commonly experience dampness and airborne particles of dust which can serve as carriers of microorganisms, such as bacteria, viruses and fungi. If left untreated they can lead to the ...

AI Technical Summary

Benefits of technology

[0007] Accordingly, it is a principal object of the invention to provide for protective, high penetrating biostatic sealer compositions for application to building / architectural construction for long term inhibitory activity from potentially damaging microorganisms that can adversely affect interior building environments and their occupants.

[0009] It is yet a further object of the invention to provide for novel compositions comprising combinations of biocidally active ingredients for effective cleaning and treatment of porous architectural construction products, such as wood and other forest products which have developed mold and mildew, for example, during aging and storage processes for effective remediation and long term inhibitory activity from such damaging microbes.

Problems solved by technology

Fungi, particularly mold, mildew and yeasts, including bacteria infestations in homes and commercial buildings have been an ever increasing health problem.

If left untreated they can lead to the development of damaging mold and mildew and other potential health hazards in walls, ceilings, flooring, air ducts, etc.

Such infestations, if not corrected can lead to illnesses and diseases among individuals who occupy these buildings.

This would often entail replacement of affected building structures, including ceiling tiles, wallboards, paneling, and so on, at considerable expense.