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US 5,968,990 AGranted
Water-dilutable, microemulsion concentrate and pour-on formulations thereof
AssigneeISP Investments Inc.
InventorsDomingo I. Jon, Donald I. Prettypaul, Matthew J. Benning, Kolazi S. Narayanan, Robert M. Ianniello
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Abstract
A water-dilutable, microemulsion concentrate and pour-on formulations for water-insoluble insecticides such as amitraz is described, which includes a mixture of nonionic emulsifiers of defined amounts and HLB values, and, particularly, including a molecular sieve or a water stabilizer additive to provide a single phase, clear, physically and chemically stable system, without decomposition for an extended period of time.
Claims11
A water-dilutable microemulsion concentrate comprising, by weight:
- (a) (i) 3-25% of a water-insoluble insecticide which is amitraz,
- (ii) 0-6% of a pyrethroid,
- (b) 35-55% of a primary nonionic emulsifier,
- (c) a mixture of secondary nonionic emulsifiers comprising:
- (i) 10-40% of a C.sub.8 -C.sub.18 alkyl pyrrolidone, and 0-20% of N-methylpyrrolidone, and
- (ii) 10-35% of a nonionic emulsifier, and
- (d) 5-20% of a molecular sieve or a water stabilizer additive, wherein the HLB of the concentrate is about 8-11.
4 more elements
Dependencies are inferred from the claim text.