Synergistic antimicrobial mixtures
OwnerKamlesh Gaglani, Maihua Yanginventors
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Abstract
A broad spectrum antimicrobial composition consisting essentially of an iodopropynyl compound in combination with a benzimidazole and a metal borate is disclosed. The composition can be used to protect industrial systems against microbial growth and, more particularly, to protect substrates such as paints, coatings, stucco, concrete, stone, cementaceous surfaces, wood, wood-plastic composites, caulking, sealants, textiles, leather, wood, preservatives, metal working fluids, drilling muds, clay slurries, glazes, optical brighteners, carpet backing, and pigments against microbial growth. The composition can be used as a preservative for aqueous products.
Claims21
An antifungal composition, consisting of:
- 3-iodo-2-propynyl butyl carbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate in proportions effective for three-component synergy and optionally a solid or liquid vehicle;
- in which composition the proportion of zinc borate is less than 67 mass %, based on the total mass of 3-iodo-2-propynyl butyl carbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate.
A method for making a polymeric material that is resistant to fungal infestation, which method consists of:
- introducing into the polymeric material an antifungal composition consisting of 3-iodo-2-propynyl-N-n-butylcarbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate in proportions effective for three-component synergy and optionally a solid or liquid vehicle;
- in which method the proportion of zinc borate is less than 67 mass %, based on the total mass of 3-iodo-2-propynyl butyl carbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate.
A method for making a wood-plastic composite that is resistant to fungal infestation, which method consists of:
- introducing into the wood-plastic composite an antifungal composition consisting of 3-iodo-2-propynyl-N-n-butylcarbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate in proportions effective for three-component synergy and optionally a solid or liquid vehicle;
- in which method the proportion of zinc borate is less than 67 mass %, based on the total mass of 3-iodo-2-propynyl butyl carbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate.
A method for protecting a substrate from fungal infestation, which method consists of treating the substrate with a fungicidally inhibiting amount of an antifungal composition consisting of:
- 3-iodo-2-propynyl butyl carbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate, in proportions effective for three-component synergy and optionally a solid or liquid vehicle;
- in which method the proportion of zinc borate is less than 67 mass %, based on the total mass of 3-iodo-2-propynyl butyl carbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate.
A method for making a dry film coating that is resistant to fungal infestation, which method consists of:
- adding to a film-forming coating precursor an antifungal composition consisting of 3-iodo-2-propynyl-N-n-butylcarbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate in proportions effective for three-component synergy against fungi and optionally a solid or liquid vehicle;
- and
- exposing the coating precursor to an oxygen-containing gas to form a dry film coating that is resistant to fungal infestation;
- in which method the proportion of zinc borate is less than 67 mass %, based on the total mass of 3-iodo-2-propynyl butyl carbamate, 2-(methoxycarbonylamino)benzimidazole, and zinc borate.
Dependencies are inferred from the claim text.