American Cyanamid Company

Richard B Toothill

Joseph C Dietz

Irwin B Wood

Joseph Fredrick Cannelongo

Richard Fishbein

Ignazio S Megna

Irving Klothen

Romeo Raymond Aloia

Ajit K Chaudhuri

Mimi Y Schaaf

A sustained release bolus composition, containing a prophylactically effective amount of a compound selected from LL-F28249.alpha., 23-(O-methyloxime)-LL-F28249.alpha. and derivatives thereof provides a method for protecting ruminant animals for a prolonged period of time against infestation by nematodes, acarids and endoand ectoparasitic insects, and which over time can also eliminate the initial population of parasites present at treatment. The invention also relates to a method for the systemic control of ectoparasitic insect infestations of ruminant animals by orally administering to said animals a sustained release bolus containing an insecticidally effective amount of LL-F28249.alpha., 23-(O-methyloxime) LL-F-28249.alpha. or derivative thereof, which continuously releases into the rumen of the treated animal a systemically effective amount of LL-F28249.alpha., 23-(O-methyloxime)LL-F28249.alpha. or derivative thereof.

Sustained release bolus effective for the prolonged prevention,

The present invention relates to novel insecticidal coating compositions comprising insecticides, such as pyrethroids or mixtures of insecticides, such as pyrethroids and organophosphates, and a vinyl dispersion which is a fluid suspension of a vinyl dispersion resin in a liquid plasticizer system. Additionally, devices coated with said compositions and method for the control of insects are presented.

Compositions, devices and method for controlling insects

The invention is an injection molding method for the preparation of sustained release boluses which are useful for administration of insect growth regulators or other veterinary compositions to animals.

Method for the preparation of sustained released bolus formulation

A method for the preparation of feed premix compositions of the antibiotic maduramicin which have improved stability of the antibiotic at elevated temperatures and the stable feed premix compositions prepared thereby.

Method for the preparation of feed premix in compositions of maduramicin

The malodor in polymers based on thiodiethanol and elastomers produced therefrom is reduced by the incorporation of various metal salts of Group IB, IIB or VIII of the Periodic Table therein.

Elastomers derived from thiodiethanol having reduced odor

A method of improving the thermal stability of sulfur-vulcanizable elastomers by incorporating copper salts therein, is disclosed.

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Warren, NJ, United States of America

Richard B Toothill