Patents by Inventor Kevan Hatchman
Kevan Hatchman 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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Publication number: 20220227895Abstract: The present invention relates to a process of a process for preparation of a polymer dispersion comprising a step (E) of free radical polymerization in an aqueous medium (M) in the presence of: at least a pre-polymer (pO) soluble in the medium (M), at least one free-radical polymerization initiator, and at least one ethylenically unsaturated hydrophobic monomer (m) which is chosen from an alkyl (meth)acrylate of at least C6, wherein the aqueous medium (M) includes water and at least one water miscible solvent.Type: ApplicationFiled: April 7, 2022Publication date: July 21, 2022Applicant: RHODIA OPERATIONSInventors: Pierre-Emmanuel Dufils, David James Wilson, Kevan Hatchman
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Patent number: 11191276Abstract: The present invention relates to a solid formulation of soap stick type comprising a primary surfactant, at least one binding agent and at least one dispersant that may especially be an amphoteric surfactant, optionally with additives. The present invention also relates to uses of said formulation, especially for oilfield applications, e.g. for gas well deliquification applications.Type: GrantFiled: May 20, 2019Date of Patent: December 7, 2021Assignee: RHODIA OPERATIONSInventors: Christopher Raymond Jones, Kevan Hatchman, Alan Christopher Fellows
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Publication number: 20200102407Abstract: The present invention relates to a process of a process for preparation of a polymer dispersion comprising a step (E) of free radical polymerization in an aqueous medium (M) in the presence of: at least a pre-polymer (pO) soluble in the medium (M), at least one free-radical polymerization initiator, and at least one ethylenically unsaturated hydrophobic monomer (m) which is chosen from an alkyl (meth)acrylate of at least C6, wherein the aqueous medium (M) includes water and at least one water miscible solvent.Type: ApplicationFiled: June 7, 2018Publication date: April 2, 2020Inventors: Pierre-Emmanuel DUFILS, David James WILSON, Kevan HATCHMAN
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Patent number: 10550482Abstract: The invention provides the use of a surfactant as a corrosion inhibitor, wherein the surfactant is selected from derivatives of alkyl polyglucosides and derivatives of terpene alkoxylates, and mixtures thereof, provided that the derivatives are not sulfosuccinates. Also provided is a method of preventing or reducing corrosion of a metal component that is in contact with, or will be in contact with, an aqueous fluid, wherein the method comprises providing a surfactant and applying the surfactant to the metal component or adding the surfactant to the aqueous fluid that is in contact with, or will be in contact with, the metal component, wherein the surfactant is selected from derivatives of alkyl polyglucosides and derivatives of terpene alkoxylates, and mixtures thereof, provided that the derivatives are not sulfosuccinates.Type: GrantFiled: January 30, 2013Date of Patent: February 4, 2020Assignee: RHODIA OPERATIONSInventors: Kevan Hatchman, Alan Fellows, Christopher Raymond Jones, Gareth Collins
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Publication number: 20190316027Abstract: The present invention relates to a solid formulation of soap stick type comprising a primary surfactant, at least one binding agent and at least one dispersant that may especially be an amphoteric surfactant, optionally with additives. The present invention also relates to uses of said formulation, especially for oilfield applications, e.g. for gas well deliquification applications.Type: ApplicationFiled: May 20, 2019Publication date: October 17, 2019Inventors: Christopher Raymond JONES, Kevan HATCHMAN, Alan Christopher FELLOWS
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Patent number: 10293279Abstract: The invention provides a foam control formulation in the form of a microemulsion, the formulation comprising: (a) from 5 to 70% w/w of primary surfactant, this surfactant having an HLB of from 1 to 12 and/or a cloud point of from 20 to 70° C.; (b) from 2 to 40% w/w of water-insoluble organic carrier liquid; and (c) water. Also provided is the use of this formulation to prevent and/or reduce foam in a fluid system, or as a processing aid to control foam production in a fluid system. The formulation may be used in an aqueous fluid system, such as an oilfield.Type: GrantFiled: May 10, 2013Date of Patent: May 21, 2019Assignee: RHODIA OPERATIONSInventors: Kevan Hatchman, Gareth Collins, Chris Jones
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Patent number: 10196556Abstract: The invention provides a synergistic surfactant composition comprising: (a) from 5 to 95 wt % of a first surfactant which is selected from derivatives of alkyl polyglucosides and mixtures thereof; and (b) from 5 to 95 wt % of a second surfactant which is selected from: amphoteric surfactants, cationic surfactants, anionic surfactants, non-ionic surfactants, and mixtures thereof. This surfactant composition may be used to generate foam that is used for unloading a liquid from a hydrocarbon reservoir. It may be that the liquid unloading of foam generated using the surfactant composition is greater than that of foam generated from the first and second surfactants when they are foamed individually.Type: GrantFiled: May 21, 2013Date of Patent: February 5, 2019Assignee: RHODIA OPERATIONSInventors: Kevan Hatchman, Gareth Collins, Chris Jones
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Patent number: 10174596Abstract: The invention provides a synergistic surfactant composition comprising: (a) a first amphoteric surfactant, which is selected from C8-C22 sultaines, salts thereof, and mixtures thereof; and (b) a second amphoteric surfactant, which is selected from C8-C22 betaines and salts thereof, C8-C22 propionates and salts thereof, and mixtures thereof. This surfactant composition may be used to generate foam that is used for unloading a liquid from a hydrocarbon reservoir. It may be that the liquid unloading of foam generated using the surfactant composition is greater than that of foam generated from the first and second surfactants when they are foamed individually.Type: GrantFiled: May 21, 2013Date of Patent: January 8, 2019Assignee: RHODIA OPERATIONSInventors: Kevan Hatchman, Gareth Collins, Chris Jones
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Patent number: 10017681Abstract: The instant invention relates to the use of a compound selected from C2-C30 alkyl phosphonic acids, salts thereof, esters thereof, and mixtures thereof, to inhibit corrosion of a metal component by an aqueous fluid containing dissolved gases in an industrial hydrocarbon system.Type: GrantFiled: January 8, 2015Date of Patent: July 10, 2018Assignee: Rhodia OperationsInventors: Kevan Hatchman, Gareth Collins, Chris Jones
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Publication number: 20180119289Abstract: The instant invention relates to a corrosion inhibitor composition that contains: (a) at least one biodegradable polyhydroxyacid and/or polyhydroxylated derivative thereof, preferably a polyhydroxyacid that may be in all or part in the form a polyhydroxylated salt and/or a polyhydroxyamide; and (b) a biodegradable cationic compound having a molecular weight of less than 500 Da, preferably between 50 and 400 DaType: ApplicationFiled: May 12, 2016Publication date: May 3, 2018Inventor: Kevan HATCHMAN
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Patent number: 9752236Abstract: The present invention provides the use of a sulfosuccinate as a corrosion inhibitor. In particular, the sulfosuccinate may be used to inhibit the corrosion of a metal component that is, or will be, in contact with an aqueous fluid, in order to prevent or reduce corrosion of the metal component. The sulfosuccinate may be used to inhibit corrosion of a metal component in an industrial aqueous system, such as a hydrocarbon plant; a chemical plant; a water plant; or a paper manufacturing plant, and in particular in an oilfield system or a downstream oil-related system.Type: GrantFiled: December 8, 2011Date of Patent: September 5, 2017Assignee: Rhodia OperationsInventors: Alan Fellows, Kevan Hatchman, Chris Jones
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Publication number: 20160326424Abstract: The instant invention relates to the use of a compound selected from C2-C30 alkyl phosphonic acids, salts thereof, esters thereof, and mixtures thereof, to inhibit corrosion of a metal component by an aqueous fluid containing dissolved gases in an industrial hydrocarbon system.Type: ApplicationFiled: January 8, 2015Publication date: November 10, 2016Inventors: Kevan HATCHMAN, Gareth COLLINS, Chris JONES
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Publication number: 20150322757Abstract: The invention provides a synergistic surfactant composition comprising: (a) a first amphoteric surfactant, which is selected from C8-C22 sultaines, salts thereof, and mixtures thereof; and (b) a second amphoteric surfactant, which is selected from C8-C22 betaines and salts thereof, C8-C22 propionates and salts thereof, and mixtures thereof. This surfactant composition may be used to generate foam that is used for unloading a liquid from a hydrocarbon reservoir. It may be that the liquid unloading of foam generated using the surfactant composition is greater than that of foam generated from the first and second surfactants when they are foamed individually.Type: ApplicationFiled: May 21, 2013Publication date: November 12, 2015Applicant: RHODIA OPERATIONSInventors: Kevan HATCHMAN, Gareth COLLINS, Chris JONES
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Publication number: 20150126417Abstract: The invention provides a synergistic surfactant composition comprising: (a) from 5 to 95 wt % of a first surfactant which is selected from derivatives of alkyl polyglucosides and mixtures thereof; and (b) from 5 to 95 wt % of a second surfactant which is selected from: amphoteric surfactants, cationic surfactants, anionic surfactants, non-ionic surfactants, and mixtures thereof. This surfactant composition may be used to generate foam that is used for unloading a liquid from a hydrocarbon reservoir. It may be that the liquid unloading of foam generated using the surfactant composition is greater than that of foam generated from the first and second surfactants when they are foamed individually.Type: ApplicationFiled: May 21, 2013Publication date: May 7, 2015Inventors: Kevan Hatchman, Gareth Collis, Chris Jones
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Publication number: 20150080273Abstract: The invention provides a foam control formulation in the form of a microemulsion, the formulation comprising: (a) from S to 70% w/w of primary surfactant, this surfactant having an HLB of from 1 to 12 and/or a cloud point of from 20 to 70° C.; (b) from 2 to 40% w/w of water-insoluble organic carrier liquid; and (c) water. Also provided is the use of this formulation to prevent and/or reduce foam in a fluid system, or as a processing aid to control foam production in a fluid system. The formulation may be used in an aqueous fluid system, such as an oilfield.Type: ApplicationFiled: May 10, 2013Publication date: March 19, 2015Inventors: Kevan Hatchman, Gareth Collins, Chris Jones
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Publication number: 20150010429Abstract: The invention provides the use of a surfactant as a corrosion inhibitor, wherein the surfactant is selected from derivatives of alkyl polyglucosides and derivatives of terpene alkoxylates, and mixtures thereof, provided that the derivatives are not sulfosuccinates. Also provided is a method of preventing or reducing corrosion of a metal component that is in contact with, or will be in contact with, an aqueous fluid, wherein the method comprises providing a surfactant and applying the surfactant to the metal component or adding the surfactant to the aqueous fluid that is in contact with, or will be in contact with, the metal component, wherein the surfactant is selected from derivatives of alkyl polyglucosides and derivatives of terpene alkoxylates, and mixtures thereof, provided that the derivatives are not sulfosuccinates.Type: ApplicationFiled: January 30, 2013Publication date: January 8, 2015Inventors: Kevan Hatchman, Alan Fellows, Christopher Raymond Jones, Gareth Collins
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Publication number: 20140296185Abstract: The present invention relates to a solid formulation of soap stick type comprising a primary surfactant, at least one binding agent and at least one dispersant that may especially be an amphoteric surfactant, optionally with additives. The present invention also relates to uses of said formulation, especially for oilfield applications, e.g. for gas well deliquification applications.Type: ApplicationFiled: November 2, 2012Publication date: October 2, 2014Inventors: Christopher Raymond Jones, Kevan Hatchman, Alan Christopher Fellows
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Publication number: 20140135239Abstract: The present invention provides the use of a sulfosuccinate as a corrosion inhibitor. In particular, the sulfosuccinate may be used to inhibit the corrosion of a metal component that is, or will be, in contact with an aqueous fluid, in order to prevent or reduce corrosion of the metal component. The sulfosuccinate may be used to inhibit corrosion of a metal component in an industrial aqueous system, such as a hydrocarbon plant; a chemical plant; a water plant; or a paper manufacturing plant, and in particular in an oilfield system or a downstream oil-related system.Type: ApplicationFiled: December 8, 2011Publication date: May 15, 2014Applicant: Rhodia OperationsInventors: Alan Fellows, Kevan Hatchman, Chris Jones
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Patent number: 6770612Abstract: Structured surfactant systems contain a deflocculant and, in addition, an auxiliary stabiliser to inhibit temperature instability. The auxiliary stabiliser comprises a substantially non cross-linked water soluble copolymer having a hydrophulic back-bone and sufficient C2-6 hydrophobic organic side chains to permit entanglement of the polymer chains.Type: GrantFiled: March 20, 2002Date of Patent: August 3, 2004Assignee: Huntsman International LLCInventor: Kevan Hatchman
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Patent number: 6194354Abstract: A pourable concentrate suitable for forming structured surfactant drilling muds on dilution with aqueous electrolyte comprises: a) from 30 to 80% by weight, based on the weight of the composition, of surfactant consisting of at least 25%, based on the weight of the surfactant, of an anionic surfactant, from 0 to 70% by weight, based on the total weight of surfactant, of an alkanolamide, and from 0 to 20% based on the total weight of surfactant, of other non-ionic surfactant and/or amphoteric surfactants; b) from 3 to 60% by weight of the composition of a compound of the formula RHX where R is hydrogen or a C1-6 alkyl group and X is a random or block copolymeric chain comprising a total of from 3 to 20 ethoxy and propoxy units in a relative numerical proportion of 0 to 10:1; and c) up to 65% by weight of water.Type: GrantFiled: September 18, 1998Date of Patent: February 27, 2001Assignee: Albright & Wilson UK LimitedInventor: Kevan Hatchman