Biocidal compositions
View Patent ↗Compositions of 1-(3-chloroallyl)-3,5,7-triaza-1-azonia-adamantane chloride, and an optional second biocide, in copolymers of ethylene oxide/propylene oxide are provided. The compositions exhibit good color and phase stability.
1. A biocidal composition comprising:
1-(3-chloroallyl)-3,5,7-triaza-1-azonia-adamantane chloride; and
a dispersant comprising a copolymer of ethylene oxide and propylene oxide as a color and phase stabilizer for the 1-(3-chloroallyl)-3,5,7-triaza-1-azonia-adamantane chloride;
a carrier comprising a mono-ether capped polyethylene glycol compound or a polypropylene glycol compound; and
a thickener comprising a polyethylene glycol compound.
2. A biocidal composition according to claim 1 further comprising a second biocide.
3. A biocidal composition according to claim 1 wherein the carrier has a number average molecular weight of between about 60 and 5000.
4. A biocidal composition according to claim 1 wherein the thickener has a number average molecular weight between about 200 and 100,000.
5. A biocidal composition according to claim 1 wherein the thickener has a number average molecular weight between about 200 and 5000.
6. A biocidal composition according to claim 2 wherein the second biocide is 1,2-benzisothiazolin-3-one.
7. A biocidal composition comprising:
1-(3-chloroallyl)-3,5,7-triaza-1-azonia-adamantane chloride;
1,2-benzisothiazolin-3-one;
a dispersant comprising a copolymer of ethylene oxide and propylene oxide as a color and phase stabilizer for the 1-(3-chloroallyl)-3,5,7-triaza-1-azonia-adamantane chloride;
a carrier comprising a mono-ether capped polyethylene glycol compound or a polypropylene glycol compound; and
a thickener comprising a polyethylene glycol compound.
8. A biocidal composition according to claim 7 comprising:
0.1 to 50% by weight of the 1-(3-chloroallyl)-3,5,7-triaza-1-azonia-adamantane chloride;
0.1 to 40% by weight of the 1,2-benzisothiazolin-3-one;
0.1 to 20% by weight of the dispersant;
0.1 to 10% by weight of the optional thickener; and
balance carrier.
9. A biocidal composition according to claim 1 that is non-aqueous.
10. A method of inhibiting bacterial growth in a medium, the method comprising providing the medium with a biocidal composition according to claim 1 .
11. A method according to claim 10 wherein the medium comprises: paints and coatings, emulsion polymers and latexes, surfactants, metal working fluids, cleaners, detergents, household products, agricultural products, or leather products.