Algicidal composition and method of preventing or controlling algae with said composition
AssigneeDuphar International Research B.V.
InventorsJaap Van Gilse, Gerard B. Paerels
Life of this patent
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Abstract
Algicidal composition comprising in an algicidally effective amount a diamine of the formula ##STR1## wherein R.sub.1 is hydrogen or up to three substituents such as halogen, alkyl, phenoxy, phenylthio, or halogen substituted alkoxy, R.sub.2 is hydrogen or a substituent such as alkyl, phenyl, halogen substituted phenyl or a trifluoromethyl-substituted phenyl group, R.sub.3 is an alkylene of 2 to 6 carbon atoms, R.sub.4 is hydrogen or alkyl of 1 to 4 carbon atoms, R.sub.5 is alkyl of 1 to 6 carbon atoms or R.sub.4 and R.sub.5 are together tetramethylene or pentamethylene or R.sub.2 and R.sub.5 are together ethylene and where R.sub.1 is other than three halogen atoms.
Claims6
An algicidal composition comprising
- an algically effective amount of a compound of the formula ##STR2## wherein R.sub.2 ' is H, methyl, or phenyl, R.sub.3 ' is ethylene, trimethylene, or 2-methyl-ethylene,
- R.sub.6 and R.sub.8 are identical or different and are H, Cl, or methyl,
- R.sub.7 is Cl or methyl, with the provisos that (a) if R.sub.6 and R.sub.8 are both H, R.sub.7 is in addition trifluoromethyl, n-C.sub.2 -C.sub.10 -alkyl, or cyclohexyl, (b) not all R.sub.6, R.sub.7, and R.sub.8 are Cl, and (c) if R.sub.6 and R.sub.8 are H and R.sub.7 is Cl, R.sub.3 ' is ethylene, or a salt thereof and
- a solid or liquid inert material.
Dependencies are inferred from the claim text.