Encapsulated efficacious zinc phosphide rodenticide

Details Encapsulated efficacious zinc phosphide rodenticide Encapsulated efficacious zinc phosphide rodenticide

1982-10-18

1984-12-25

Phillips, Delbert R.

Drug, bio-affecting and body treating compositions

Identification or warning feature

Taste or smell or chemical irritation to the eye, nose, or...

424 32, 424 78, 424128, A01N 5926

Patent

active

044903529

ABSTRACT:
A rodenticide is disclosed comprising an encapsulated zinc phosphide toxicant, a bait, and a binder for adhering the encapsulated zinc phosphide to the bait, said binder comprising a polyol or a sugar-containing fluid. The encapsulant is a thermoplastic polyamide, preferably nylon, present in an amount of from about 2% to about 10% by weight of zinc phosphide. When the bait is a grain or a processed grain, a zinc salt is preferably added to the rodenticide to inhibit the generation of phosphine. Histamine, a histamine salt or a histamine-producing substance, such as red pepper, can also be added to the rodenticide to stimulate acid secretion in the stomach of the rodent.
A particulate encapsulated product is also disclosed comprising a core of zinc phosphide having a coating of a thermoplastic polyamide present in the range of from about 2% to about 10% by weight. The encapsualted product is a small particle capable of passing through a 40 mesh size screen.

REFERENCES:
patent: 4376112 (1983-03-01), Miller

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