Patents by Inventor Andrew Francis Kirby
Andrew Francis Kirby has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7179859Abstract: A method of dispersing an insoluble material in an aqueous solution comprising the following steps: (i) providing a formulation comprising at least one insoluble material and at least one dispersant comprising a water soluble agriculturally acceptable derivative of an alternating copolymer or an agriculturally acceptable salt thereof wherein said alternating copolymer comprises at least one residue of a first comonomer and at least one residue of a second comonomer, wherein said first comonomer comprises ?,?-unsaturated oxyacids or anhydrides and said second comonomer comprises olefinic compounds containing one or more polymerizable double bonds; and (ii) dispersing said formulation in an aqueous medium.Type: GrantFiled: December 9, 2004Date of Patent: February 20, 2007Assignee: Huntsman Surfactants Technology CorporationInventors: Andrew Francis Kirby, Rodney Walter Parr, Phillip Robert Tudor, David Hayshiv Parris
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Patent number: 7109267Abstract: A novel agricultural formulation includes at least one finely divided solid water-insoluble material and at least one novel dispersant containing a polymer synthesized from first and second comonomers. The first comonomer is an ?,?-unsaturated oxyacid or anhydride, and the second comonomer is an olefin having at least one polymerizable double bond. Also disclosed is a method for dispersing a finely divided solid insoluble material, in particular, an active water-insoluble agrochemical principal, in an aqueous solution; a method for treating a substrate with such a material or principal; and a method of making an agrochemical formulation, where the methods are based on application of the novel dispersant to the preparation of aqueous dispersions of the solid material and agrochemical principal.Type: GrantFiled: November 12, 2004Date of Patent: September 19, 2006Assignee: Huntsman Surfactants Technology CorporationInventors: Andrew Francis Kirby, Rodney Walter Parr, Phillip Robert Tudor, David Hayshiv Parris
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Patent number: 6906005Abstract: The present invention relates to surfactant systems and in particular herbicidal compositions comprising a water soluble herbicide and/or a salt thereof and a surfactant system, wherein the surfactant system comprises at least two surfactants selected from the group consisting of: i) alkyldiamine tetraalkoxylate surfactants; ii) N-alkyl alkyldiamine trialkoxylate surfactants; and iii) phosphated alcohol alkoxylate surfactants.Type: GrantFiled: November 30, 2001Date of Patent: June 14, 2005Assignee: Huntsman Corporation Australia Pty LtdInventors: Andrew Francis Kirby, Ashley Scott Martin, Paul Leslie Griffiths
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Patent number: 6887830Abstract: Surfactant adjuvants that improve the bioefficacy of herbicides by combining known surfactancy, or wetting characteristics, of sulfosuccinate or sulfosuccinamate-based surfactants, with the proven bioefficiacy characteristics of alkoxylated amine-based surfactants. The surfactant adjuvants contain an amine-based surfactant, and a sulfosuccinate or sulfosuccinamate-based surfactant. The surfactant adjuvants are combined with herbicidal active ingredients, and optionally, one or more formulation aids to form herbicide compositions that have a reduced tendency to cause eye and skin irritation and can be used to control unwanted weeds or vegetation.Type: GrantFiled: June 18, 2002Date of Patent: May 3, 2005Assignee: Huntsman Petrochemical CorporationInventors: Howard Meyer Stridde, Samir S. Ashrawi, David Charles Lewis, Curtis Michael Elsik, Andrew Francis Kirby
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Patent number: 6855763Abstract: A novel agricultural formulation includes at least one finely solid water-insoluble material and at least one novel dispersant containing a polymer synthesized from first and second comonomers. The first comonomer is an ?,?-unsaturated oxyacid or anhydride, and the second comonomer is an olefin having at least one polymerizable double bond. Also disclosed is a method for dispersing a finely divided solid insoluble material, in particular, an active water-insoluble agrochemical principal, in an aqueous solution; a method for treating a substrate with such a material or principal; and a method of making an agrochemical formulation, where the methods are based on application of the novel dispersant to the preparation of aqueous dispersions of the solid material and agrochemical principal.Type: GrantFiled: October 14, 1998Date of Patent: February 15, 2005Assignee: Huntsman Surfactants Technology CorporationInventors: Andrew Francis Kirby, Rodney Walter Parr, Phillip Robert Tudor, David Hayshiv Parris
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Patent number: 6844293Abstract: A method of dispersing an insoluble material in an aqueous solution comprising the following steps: (i) providing a formulation comprising at least one insoluble material and at least one dispersant comprising a water soluble agriculturally acceptable derivative of an alternating copolymer or an agriculturally acceptable salt thereof wherein said alternating copolymer comprises at least one residue of a first comonomer and at least one residue of a second comonomer, wherein said first comonomer comprises ??-unsaturated oxyacids or anhydrides and said second comonomer comprises olefinic compounds containing one or more polymerizable double bonds; and (ii) dispersing said formulation in an aqueous medium.Type: GrantFiled: October 14, 1998Date of Patent: January 18, 2005Assignee: Huntsman Surfactants Technology CorporationInventors: Andrew Francis Kirby, Rodney Walter Parr, Phillip Robert Tudor, David Hayshiv Parris
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Publication number: 20040063586Abstract: The present invention relates to surfactant systems and in particular herbicidal compositions comprising a water soluble herbicide and/or a salt thereof and a surfactant system, wherein the surfactant system comprises at least two surfactants selected from the group consisting of: i) alkyldiamine tetraalkoxylate surfactants; ii) N-alkyl alkyldiamine trialkoxylate surfactants; and iii) phosphated alcohol alkoxylate surfactants.Type: ApplicationFiled: September 22, 2003Publication date: April 1, 2004Inventors: Andrew Francis Kirby, Ashley Scott Martin, Paul Leslie Griffiths
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Publication number: 20030032558Abstract: Surfactant adjuvants that improve the bioefficacy of herbicides by combining known surfactancy, or wetting characteristics, of sulfosuccinate or sulfosuccinamate-based surfactants, with the proven bioefficiacy characteristics of alkoxylated amine-based surfactants. The surfactant adjuvants contain an amine-based surfactant, and a sulfosuccinate or sulfosuccinamate-based surfactant. The surfactant adjuvants are combined with herbicidal active ingredients, and optionally, one or more formulation aids to form herbicide compositions that have a reduced tendency to cause eye and skin irritation and can be used to control unwanted weeds or vegetation.Type: ApplicationFiled: June 18, 2002Publication date: February 13, 2003Inventors: Howard Meyer Stridde, Samir S. Ashrawi, David Charles Lewis, Curtis Michael Elsik, Andrew Francis Kirby
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Patent number: 6339043Abstract: A method of dispersing an insoluble material in an aqueous solution comprising the following steps: (i) providing a formulation comprising at least one insoluble material and at least one dispersant comprising a water soluble agriculturally acceptable derivative of an alternating copolymer or an agriculturally acceptable salt thereof wherein said alternating copolymer comprises at least one first comonomer residue according to formula I and at least one second comonomer residue according to formula II; and (ii) dispersing said formulation in an aqueous medium. An agricultural formulation comprising at least one insoluble material and at least one dispersant comprising a water soluble agriculturally acceptable derivative of an alternating copolymer or an agriculturally acceptable salt thereof wherein said alternating copolymer comprises at least one first comonomer residue according to formula I and at least one second comonomer residue according to formula II.Type: GrantFiled: July 25, 2000Date of Patent: January 15, 2002Assignee: Huntsman Surfactants Technology CorporationInventors: Andrew Francis Kirby, Rodney Walter Parr, Phillip Robert Tudor, David Hayshiv Parris
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Patent number: 6248695Abstract: This invention relates to a herbicidal composition comprising N-phosphonomethylglycine and/or a salt thereof and an alkyldiamine tetraalkoxylate surfactant, a surfactant composition useful in glyphosate compositions and a method for controlling or eradicating unwanted plants or vegetation.Type: GrantFiled: July 19, 1999Date of Patent: June 19, 2001Assignee: Huntsman Surfactants Technology CorporationInventors: Paul Leslie Griffiths, Andrew Francis Kirby, Stephen Patrick Tonner
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Patent number: 5783692Abstract: This invention relates to novel alkylpolysaccharide dertivatives including their salts and compositions comprising said alkyl polysaccharides. The alkyl polysaccharide derivatives are of the formula (I): R.sup.1 --(OG).sub.n (X).sub.m, where R.sup.1 is hydrogen or a hydrophobic moiety; G is a saccahride residue; and X is a succinic anhydride residue; and n and m are independently chosen from an average value which is between 1 and 200.Type: GrantFiled: August 21, 1997Date of Patent: July 21, 1998Assignee: ICI Australia Operations Proprietary LimitedInventors: Andrew Francis Kirby, Keith Moody