Synergistic fungicidal composition and use
AssigneeZeneca Limited
InventorsBryan S. Backhouse, Malcolm Greenhalgh
Life of this patent
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Abstract
A composition comprises (a) halogenated aromatic 1,2- or 1,3-dinitrile, (b) a substituted urea and (c) a halogen-containing aromatic alkyl sulphoxide or sulphone. The composition may include other materials for example inorganic diluents such as silica, alumina, titanium, dioxide, zinc oxide, etc. and may also include other anti-microbial agents such as anti-bacterial agents. The composition has anti-microbial properties, particularly anti-fungal and anti-algal properties. The composition can be incorporated into materials such as paint or plastics to provide anti-microbial properties.
Claims19
A fungicidal composition comprising synergistically effective amount of (a) at least one halogenated aromatic 1,2- or 1,3-dinitrile, (b) at least one substituted urea, and (c) at least one compound of formula
- Ar.sup.1 SO.sub.x R.sup.3
- wherein
- Ar.sup.1 is a pyridine ring which contains at least one halogen substituent;
- R.sup.3 is C.sub.1-12 -alkyl;
- and
- x is 1 or 2.
A fungicidal composition comprising:
- (a) between 15% and 70% by weight of a tetrahalogenated aromatic 1,2- or 1,3-dinitrile;
- (b) between 15% and 40% by weight of a substituted urea of the formula:
- ##STR5## wherein Ar is an unsubstituted aryl group or is an aryl group substituted with one or two substituents which are halogen atoms or C.sub.1 -C.sub.6 alkyl groups;
- R.sup.1 is methyl or methoxy;
- and
- R.sup.2 is hydrogen, methyl or methoxy;
- and
- (c) between 15% and 50% by weight of a halogen-containing aromatic alkyl sulphoxide or sulphone of the formula
- Ar.sup.1 SO.sub.x R.sup.3
- wherein
- Ar.sup.1 is a pyridine ring which contains at least one halogen substituent;
- R.sup.3 is an alkyl group which contains not more than six carbon atoms;
- and
- x has a value of one or two;
- wherein the weight percents are based upon the total weight of (a), (b) and (c).
A fungicidal composition comprising:
- (a) 30 to 60% by weight of tetrachloroisophthalonitrile;
- (b) 20 to 25% by weight of 3-(3,4-dichlorophenyl)-1,1-dimethylurea;
- (c) 20 to 40% by weight of a halogen containing aromatic alkyl sulphone which is 2,3,5,6-tetrachloro-4-(methylsulphonyl)pyridine and (d) 0 to 20% by weight of at least one solid component selected from the group consisting of aluminum oxide, silicon oxide, titanium dioxide, zinc oxide, talc, pyrophyllite, gypsum, kieselguhr, chalk, diatomaceous earth, bentonite, fuller's earth, wheat flour, soybean flour, wood flour, walnut shell flour and lignin.
Dependencies are inferred from the claim text.