Imperial Chemical Industries Limited

Stauffer Chemical Company

Chia-chung Chen

Ray J. Lo

Richard H. Rider

Richard H Rider

Herbert Benson Scher

Chia-Chung Chen

Ray J Lo

Garrard Lee Hargrove

Alice U Hahn

Mercaptan odors in a thiophosphate compound or formulation are suppressed by treatment of the compound during preparation of the formulation with treatment agents selected from iodine, and alkali and alkaline earth metal hydroxides, hypochlorites and iodates. Depending on the particular agent and method of treatment used, the agent and any reaction products resulting from the treatment may be either removed from the thiophosphate or retained with it in the final formulation. Formulations of particular interest are granular formulations for field application.

Inhibition of mercaptan odor in organothiophosphate biocides

Open-ended pores of a porous granule are filled with a liquid material which is at least partially immiscible with water, and sealed with a porous polyurea membrane which limits the release rate of the material into the surrounding medium. The membrane is formed by

Impregnated porous granules with slow release pore membranes and process

Growing community of inventors

El Cerrito, CA, United States of America

Richard H Rider