Macroemulsions

Details Macroemulsions Macroemulsions

A - Human Necessities

01

N

71/41, 167/4.1

A01N 25/04 (2006.01) A01N 53/00 (2006.01)

Patent

CA 1271646

ABSTRACT FOR THE DISCLOSURE A macroemulsion which is stable to separation and crystallization over a wide range of temperature is disclosed. These macroemulsions contain: 0.0001 to 30% by weight of at least one solid pyrethroid, 0.0005 to 50% by weight of an aromatic diluent, 0.0001 to 15% by weight of polyvinyl alcohol having a mean molecular weight of between 5,000 and 60,000 and a content of acetate groups of between 2 and 30 mol%, if appropriate as a mixture with polyvinyl alochol having a mean molecular weight of between 70,000 and 150,000 and a content of acetate groups of between 2 and 30 mol%, and water and acid and, if appropriate, further addi- tives and - in which the oil phase is dispersed in the aqueous phase in the form of droplets having a mean particle diameter of 0.1 to 3.0 µm.

503673

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