Angus Chemical Company

Friedrich W Korte

Frederick Coulston

Potentiated insect repellent compositions comprising a combination of Deet and certain bicyclic lactones having insect repellent properties are disclosed. The lactones comprise compounds of the formula: ##STR1## or the corresponding unsaturated compounds thereof having the formula: ##STR2## wherein R, R', R' and R'' each are lower alkyl or hydrogen; wherein y is an integer from 1-3, and x and z each are 0 or 1, with the proviso that y is 1 or 2 when x is 1. Preferably, R, R', R' and R'' each are hydrogen or methyl. Such compositions preferably further include a carrier. A method of using such a potentiated composition to repel an insect from a situs comprises applying to such situs an effective amount of the composition, with or without the carrier.

Potentiated insect repellent composition and method

Compositions containing certain bicyclic lactones and having insect repellent properties are disclosed. Such compositions comprise a compound of the formula: ##STR1## or the corresponding unsaturated compound thereof having the formula: ##STR2## wherein R, R', R' and R'' each are lower alkyl or hydrogen; wherein y is an integer from 1-3, and x and z each are 0 or 1, with the proviso that y is 1 or 2 when x is 1; and a carrier. A method of using such a repellent composition to repel an insect from a situs comprises applying to such situs an effective amount of the composition, with or without the carrier, and thereby repelling the insect from the situs.

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Attenkirchen, Germany

Friedrich W Korte