Nutrient microemulsion in spray form, useful as a biodegradation accelerator
AssigneeElf Aquitaine
InventorsJacques Tellier, Anne Basseres, Pascal Brochette, Alexandre Espert
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Abstract
A microemulsion is prepared containing: a mixture of (1) nitrogenous compounds, (2) from 10-5% by weight of an alkyl or alkenyl phosphoric ester surfactant, the alkyl and alkenyl groups of which contain less than 12 carbon atoms per group and the ester surfactant containing from 1 to 10 alkoxy radicals, (3) from 3 to 20% by weight of at least one cosurfactant, (4) a vegetable oil, an animal oil or a fatty acid and (5) a plasticizer. The microemulsion having a viscosity at 5° C. less than or equal to 200 mPa·sec and is stable at a temperature of −10° C. to +50° C. Further, the microemulsion is useful as a biodegradation accelerator.
Claims19
A microemulsion, comprising:
- a mixture of (1) nitrogenous compounds, (2) from 10-35% by weight of an alkyl or alkenyl phosphoric ester surfactant, the alkyl and alkenyl groups of which contain less than 12 carbon atoms per group and the ester surfactant containing from 1 to 10 alkoxy radicals, (3) from 3 to 20% by weight of at least one cosurfactant and (4) a vegetable oil, an animal oil or a fatty acid and (5) a plasticizer, said microemulsion having a viscosity at 5° C. less than or equal to 200 mPa·sec and is stable at a temperature of −10° C. to +50° C.
Dependencies are inferred from the claim text.