Abstract: A method of conditioning a tubular clay material to enable its loading with an active, the method comprising the step of exposing the tubular clay material to a chemical agent in a manner such that the agent sorbs to a surface of the clay material that is internal of the tube, the chemical agent being selected such that, when the agent is sorbed to the clay material internal surface, the affinity of the tubular clay material for the active is altered.
Type:
Application
Filed:
July 26, 2006
Publication date:
January 7, 2010
Applicant:
THE UNIVERSITY OF SYDNEY
Inventors:
Cameron John Kepert, Malcolm Edward Roland Green, Sarah Jane Antill
Abstract: Slow-Release agrochemical formulations for the prevention of leaching and contamination of soil and ground water, are described. The agrochemicals are organic compounds with non-ionic and non polar molecular structures, which are adsorbed to clays whose surface properties have been transformed from hydrophilic to hydrophobic by previous adsorption of an organic cation, usually of quaternary ammonium structure, having at least one aryl group attached to the ammonium nitrogen atom. The intermolecular interactions of the agrochemical with the organo-clay surface result in a reduction of its leaching in the field.
Type:
Grant
Filed:
March 1, 1999
Date of Patent:
July 17, 2001
Assignee:
Yissum Research Development Company of the Hebrew University
of Jerusalem
Inventors:
Baruch Rubin, Yasser El-Nahhal, Shlomo Nir, Leon Margulies
Abstract: Compositions comprising a herbicide wherein it is desired that the compound not be retained by the plant foliage, and a repellant adjuvant, wherein the repellant modifies the surface properties of the composition so that retention of the composition on foliage of a cultivated plant is reduced are described. In particular, the herbicide composition comprises a repellant adjuvant that is an aqueous solution of an alkyltrialkoxysilane such as methyltrimethoxysilane and a water soluble silane coupling agent such as N-(2-aminoethyl)-3-aminopropyltrimethoxysilane or an aqueous solution of an organosiliconate such as sodium methyl siliconate. Methods are described for using these compositions to prevent weeds without injury to cultivated plants, which plants include crop plants, food plants, turfgrass, ornamental plants, and garden plants.
Type:
Grant
Filed:
July 15, 1999
Date of Patent:
May 22, 2001
Assignees:
Board of Trustees operating Michigan State University, Dow Corning Corporation
Inventors:
Donald Penner, Christy L. Sprague, Richard F. Burow
Abstract: A herbicide composition which comprises a herbicide and a small but herbicide absorption enhancing effective amount of a water soluble, non-aromatic polyorganic acid or a salt or copolymer thereof such as polyaspartic acid.
Abstract: Herbicidal compounds of the formula ##STR1## in which, for example, X is Br, Cl or F; Y is Cl or Br, R.sup.2 is CHF.sub.2, R.sup.3 is CH.sub.3, R is alkyl, dialkylamino, carboxymethyl, hydroxy, haloalkyl, or aryl, and R.sup.1 is H, Na, lower alkyl or --SO.sub.2 R.
Abstract: The disclosure herein relates to a new family of haloalkyl oxazolidinyl derivatives as antidotal compounds to reduce injury to crop plants by a variety of herbicides. The antidotal compounds are characterized particularly by having heterocyclyl or spiroheterocyclyl radicals attached to the 5-position of haloalkyl oxazolidine compounds and are especially useful as in-can antidotes against injury by acetanilide and thiocarbamate herbicides to corn, sorghum, soybeans, wheat, rice and other crops.
Type:
Grant
Filed:
July 3, 1991
Date of Patent:
October 26, 1993
Assignee:
Monsanto Company
Inventors:
Eric L. Williams, Steven M. Massey, Brett H. Bussler, Ronald J. Brinker