Syngenta Corporation

Zeneca Limited

Jinling Chen

Herbert Benson Scher

John Christopher Padget

Ian Malcolm Shirley

David Braun Kanne

Isabelle Mazeaud

Philip Wade

Anne Waller

A novel microcapsule comprising an encapsulated material which is enclosed within a solid permeable shell of a polymer resin having surface modifying compounds capable of reacting with isocyanate incorporated therein is disclosed. The process for producing such microcapsules is likewise disclosed.

Microcapsules

A method of selectively controlling undesirable vegetation in crops by using a postemergent application of an herbicidally effective amount of a metal chelate of a 2-(substituted benzoyl)-1,3-cyclohexanedione compound to the locus of such undesirable vegetation.

Method for improving the selectivity of 1,3-cyclohexanedione herbicide

Metal chelates of herbicidal dione compounds of the formula ##STR1## are chemically stable for long periods of time under normal as well as extreme temperature conditions. Chemically stable liquid herbicidal formulations containing metal chelates of the herbicidal compounds of formula (I) and water, an organic solvent or a liquid co-herbicide and processes for producing chemically stable herbicidal compositions containing such metal chelates are also described.

Stable herbicidal compositions containing metal chelates of herbicidal

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Randolph, NJ, United States of America

Jinling Chen