Emulsifiable concentrate for weed control
AssigneeSumitomo Chemical Company, Limited
InventorsFumio Horide, Kozo Tsuji
Life of this patent
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Abstract
An emulsifiable concentrate for weed control, which comprises 10 to 20 parts by weight of N'-[4-(4-methylphenethyloxy)phenyl]-N-methoxy-N-methylurea, 5 to 15 parts by weight of an emulsifier, 10 to 70 parts by weight of at least one of aromatic hydrocarbon solvents of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each hydrogen or alkyl having 1 to 3 carbon atoms and 15 to 75 parts by weight of at least one of ketonic solvents having not more than 9 carbon atoms, of which the water solubility is not more than 10% by weight at room temperature.
Claims6
An emulsifiable concentrate for weed control, consisting essentially of 10 to 20 parts by weight of N'-[4-(4-methylphenethyloxy)phenyl]-N-methoxy-N-methylurea, 5 to 15 parts by weight of an emulsifier, 10 to 70 parts by weight of at least one aromatic hydrocarbon solvent of the formula:
- ##STR3## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are each hydrogen or alkyl having 1 to 3 carbon atoms and 15 to 75 parts by weight of at least one ketonic solvent having not more than 9 carbon atoms and having a water solubility of not more than 10% by weight at room temperature, said emulsifier being a mixture of at least one anionic surfactant selected from the group consisting of the calcium or sodium salt of an alkylbenzenesulfonic acid and at least two non-ionic surfactants selected from the group consisting of polyoxyethylene alkyl ether, polyoxyethylene alkyl aryl ether, polyoxyethylene styryl aryl ether, polyoxyethylene styryl aryl ether polymer, polyoxyethylene fatty acid ester, oxyethylene oxypropylene polymer, and mixtures thereof.
Dependencies are inferred from the claim text.