Patents by Inventor Christopher Paynter
Christopher Paynter 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: 11535522Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.Type: GrantFiled: December 9, 2020Date of Patent: December 27, 2022Assignee: Imerys USA, Inc.Inventors: Virendra Singh, Christopher Paynter, David Gittins, Dickey Shurling, Douglas Wicks, Janet Preston, Andrew Findlay
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Patent number: 11421531Abstract: A method for using a composition for use as rock dust in an underground mine is disclosed. The composition includes a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert according to at least one of a 20-L explosibility test or an ASTM E1515 explosibility test. The fine, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.Type: GrantFiled: December 5, 2019Date of Patent: August 23, 2022Assignee: Imerys USA, Inc.Inventors: Douglas Wicks, Christopher Paynter, Jean-Andre Alary, Dickey S. Shurling, David Anstine
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Patent number: 11111786Abstract: Compositions and methods of using rock dust are disclosed. A mine rock dust may be capable of being applied in a wet form. A moisture tolerant mine rock dust may include a hydrophobic inorganic particulate material. A moisture tolerant mine rock dust may be capable of being dispersed by a light blast of air. A method may include applying a mine rock dust at a concentration having little or no respirable mine rock dust. A method of applying a mine rock dust may include applying a mine rock dust in a wet form. The mine rock dust may be applied at a concentration having little or no respirable mine rock dust. The mine rock dust may include a hydrophobic inorganic particulate material.Type: GrantFiled: October 23, 2015Date of Patent: September 7, 2021Assignee: Imerys USA, Inc.Inventors: Christopher Paynter, Douglas Wicks, David Anstine
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Publication number: 20210101802Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.Type: ApplicationFiled: December 9, 2020Publication date: April 8, 2021Inventors: Virendra SINGH, Christopher PAYNTER, David GITTINS, Dickey SHURLING, Douglas WICKS, Janet PRESTON, Andrew FINDLAY
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Patent number: 10875782Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.Type: GrantFiled: April 21, 2017Date of Patent: December 29, 2020Assignee: Imerys USA, Inc.Inventors: Virendra Singh, Christopher Paynter, David Gittins, Dickey Shurling, Douglas Wicks, Janet Preston, Andrew Findlay
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Publication number: 20200109629Abstract: A method for using a composition for use as rock dust in an underground mine is disclosed. The composition includes a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert according to at least one of a 20-L explosibility test or an ASTM E1515 explosibility test. The fine, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.Type: ApplicationFiled: December 5, 2019Publication date: April 9, 2020Inventors: Douglas WICKS, Christopher PAYNTER, Jean-Andre ALARY, Dickey S. SHURLING, David ANSTINE
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Patent number: 10533417Abstract: A method for using a composition for use as rock dust in an underground mine is disclosed. The composition includes a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. Also disclosed is a composition including coal dust and mine rock dust including a fine, wet ground inorganic particulate material treated with at least one hydrophobic treatment, and a coarse, untreated, dry ground inorganic particulate material. The amount of mine rock dust may be sufficient to render the coal dust explosively inert according to at least one of a 20-L explosibility test or an ASTM E1515 explosibility test. The fine, wet ground inorganic particulate material may be calcium carbonate. The coarse, untreated inorganic particulate material may be calcium carbonate. The fatty acid may be stearic acid.Type: GrantFiled: February 14, 2017Date of Patent: January 14, 2020Assignee: Imerys USA, Inc.Inventors: Douglas Wicks, Christopher Paynter, Jean-Andre Alary, Dickey S. Shurling, David Anstine
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Publication number: 20190359495Abstract: Compositions comprising calcium carbonate, methods of preparation thereof, and methods of use thereof are discussed. The particulate mineral may be prepared by a precipitation process and/or by a grinding process, for example. The composition may comprise a particulate mineral that comprises calcium carbonate and magnesium, wherein the particulate mineral comprises from about 7% to about 80% magnesium by weight, with respect to the total weight of the particulate mineral. The bulk chemical composition of the particulate mineral may have a magnesium content within 5% of the magnesium content of the surface of the particulate mineral, and/or the particulate mineral may have a steepness value ranging from about 20 to about 80.Type: ApplicationFiled: September 11, 2017Publication date: November 28, 2019Inventors: Virendra SINGH, Claire THERON, David TAYLOR, Christopher PAYNTER, Douglas WICKS
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Patent number: 10399862Abstract: A process for treating a sulfurous fluid to form gypsum and magnesium carbonate, whereby the sulfurous fluid is scrubbed with a sequestrating agent to yield a scrubbed fluid, gypsum and magnesium sulfate. The flue gas desulfurized gypsum is isolated from the magnesium sulfate solution by filtration or centrifugation. The magnesium sulfate is reacted with a carbonate salt to produce a magnesium carbonate whereby the reaction conditions are controlled to control the properties of the magnesium carbonate produced.Type: GrantFiled: January 14, 2016Date of Patent: September 3, 2019Assignee: Imerys USA, Inc.Inventors: Christopher Paynter, Kalena Stovall, Douglas Wicks, Gavin Butler-Lee, Parvin Golbayani, Nigel Victor Jarvis, Graham M. Pring, David Taylor, Ricardo M. Perez
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Publication number: 20190135650Abstract: Inorganic particulate compositions containing inorganic particles associated with a copolymer of a hydrophilic monomer and a hydrophobic monomer associated with the inorganic particles are provided. The particulate composition satisfies at least one of the following properties: a BET surface area of the inorganic particles is greater than 8 m2/g, a Hegman value of the inorganic particles is 75 microns or less, and a rate of water loss from the composition upon drying from a moisture level greater than 2% wt % is at least 30% greater than a composition having a corresponding content of a polyacrylate polymer associated with the particles. A method to prepare the composition and formulations for inks, paints, coatings and filled polymeric articles containing the inorganic particulate composition are also provided.Type: ApplicationFiled: April 21, 2017Publication date: May 9, 2019Inventors: Virendra SINGH, Christopher PAYNTER, David GITTINS, Dickey SHURLING, Douglas WICKS, Janet PRESTON, Andrew FINDLAY
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Publication number: 20190055406Abstract: A composition for use as a construction compound is disclosed. The composition may include an inorganic particulate material treated with at least one surface treatment. The surface treatment may include at least one of a fatty acid, a salt thereof, or an ester thereof, silicone oil, silane, or siloxane. The construction compound may improve the workability and/or surface finish of a construction compound. Methods are also provided, including a method for improving the efficiency of application of a construction compound to a drywall joint.Type: ApplicationFiled: February 13, 2017Publication date: February 21, 2019Inventors: David ANSTINE, Douglas WICKS, Christopher PAYNTER
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Publication number: 20180265370Abstract: A process for converting gypsum into precipitated calcium carbonate including reacting a mixture comprising gypsum and a seed, a mineral acid, or both with at least one carbonate source, whereby precipitated calcium carbonate is produced in the form of calcite and/or aragonite directly without conversion from a vaterite polymorph. Also, a process for converting gypsum into precipitated calcium carbonate including providing a mixture comprising i) gypsum ii) a seed, a mineral acid, or both iii) at least one additive selected from the group consisting of ammonium sulfate, an organic acid, or an iron material, and reacting the mixture with at least one carbonate source to produce precipitated calcium carbonate in the form of vaterite. The precipitated calcium carbonates having desired and unique compositions, polymorph and crystal size characteristics formed by these processes.Type: ApplicationFiled: January 14, 2016Publication date: September 20, 2018Inventors: Christopher PAYNTER, Kalena STOVALL, Douglas WICKS, Gavin BUTLER-LEE, Parvin GOLBAYANI, Nigel Victor JARVIS, Graham M. PRING, David TAYLOR, Ricardo M. PEREZ
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Publication number: 20180265371Abstract: A process for converting gypsum into precipitated calcium carbonate including reacting a mixture comprising gypsum and a seed, a mineral acid, or both with at least one carbonate source, whereby precipitated calcium carbonate is produced in the form of calcite and/or aragonite directly without conversion from a vaterite polymorph. Also, a process for converting gypsum into precipitated calcium carbonate including providing a mixture comprising i) gypsum ii) a seed, a mineral acid, or both iii) at least one additive selected from the group consisting of ammonium sulfate, an organic acid, or an iron material, and reacting the mixture with at least one carbonate source to produce precipitated calcium carbonate in the form of vaterite. The precipitated calcium carbonates having desired and unique composition, polymorph and crystal size characteristics formed by these processes.Type: ApplicationFiled: January 14, 2016Publication date: September 20, 2018Inventors: Christopher PAYNTER, Kalena STOVALL, Douglas WICKS, Gavin BUTLER-LEE, Parvin GOLBAYANI, Nigel Victor JARVIS, Graham M. PRING, David TAYLOR, Ricardo M. PEREZ
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Publication number: 20180022614Abstract: A process for converting gypsum into precipitated calcium carbonate including reacting a mixture comprising gypsum and a seed, a mineral acid, or both with at least one carbonate source, whereby precipitated calcium carbonate is produced in the form of calcite and/or aragonite directly without conversion from a vaterite polymorph. Also, a process for converting gypsum into precipitated calcium carbonate including providing a mixture comprising i) gypsum ii) a seed, a mineral acid, or both iii) at least one additive selected from the group consisting of ammonium sulfate, an organic acid, or an iron material, and reacting the mixture with at least one carbonate source to produce precipitated calcium carbonate in the form of vaterite.Type: ApplicationFiled: January 14, 2016Publication date: January 25, 2018Inventors: Christopher PAYNTER, Kalena STOVALL, Douglas WICKS, Gavin BUTLER-LEE, Parvin GOLBAYANI, Nigel Victor JARVIS, Graham M. PRING, David TAYLOR, Ricardo M. PEREZ
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Publication number: 20180002187Abstract: A process for treating a sulfurous fluid to form gypsum and magnesium carbonate, whereby the sulfurous fluid is scrubbed with a sequestrating agent to yield a scrubbed fluid, gypsum and magnesium sulfate. The flue gas desulfurized gypsum is isolated from the magnesium sulfate solution by filtration or centrifugation. The magnesium sulfate is reacted with a carbonate salt to produce a magnesium carbonate whereby the reaction conditions are controlled to control the properties of the magnesium carbonate produced.Type: ApplicationFiled: January 14, 2016Publication date: January 4, 2018Applicant: Imerys USA, Inc.Inventors: Christopher PAYNTER, Kalena STOVALL, Douglas WICKS, Gavin BUTLER-LEE, Parvin Golbayani, Nigel Victor JARVIS, Graham M. PRING, David TAYLOR, Ricario M. PEREZ
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Publication number: 20180002538Abstract: A composition may include a base or matrix material, such as a resin, and a first optical brightener. The first optical brightener may include an alkaline earth metal compound and a fluorescence activator. The composition may include less than or equal to about 1.5 wt % of a second optical brightener relative to the weight of the composition, wherein the second optical brightener does not include the fluorescence activator. A composition may include an aqueous base and an optical brightener. The optical brightener may include an alkaline earth metal carbonate and a fluorescence activator, wherein the optical brightener is configured to emit fluorescent light. A composition may include a first optical brightener.Type: ApplicationFiled: December 30, 2015Publication date: January 4, 2018Inventors: Parvin GOLBAYANI, Mathew CHEESEMAN, Christopher PAYNTER, Douglas WICKS
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Publication number: 20180002537Abstract: A composition may include an aqueous base and at least one identifying additive. The at least one identifying additive may include an alkaline earth metal compound and a fluorescence activator. The at least one identifying additive may be configured such that the composition emits fluorescent light having an identifying characteristic different from a characteristic of a surface against which the identifying characteristic is viewed. A composition may include an aqueous base and at least one identifying additive including an alkaline earth metal compound and a fluorescence activator including at least one other inorganic element. The at least one identifying additive may be configured such that the composition emits fluorescent light having an identifying characteristic. A label or packaging for identifying at least one of an object and a source of the object may include a composition including at least one identifying additive associated with a surface associated with the label or packaging.Type: ApplicationFiled: December 30, 2015Publication date: January 4, 2018Inventors: Parvin GOLBAYANI, Mathew CHEESEMAN, Christopher PAYNTER, Douglas WICKS
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Publication number: 20170369329Abstract: A process for converting natural calcium carbonate into precipitated calcium carbonate, involving treating the natural calcium carbonate with a sulfate to produce a gypsum and reacting the gypsum with at least one carbonate source to produce precipitated calcium carbonate. The crystalline polymorph, particle size, and various other characteristics of the precipitated calcium carbonate are controlled by varying conditions during the reacting. Since the natural calcium carbonate is not calcined, the process relates to a low energy method of producing precipitated calcium carbonate of controlled polymorph and particle size with limestone, marble, or chalk as the calcium source.Type: ApplicationFiled: January 14, 2016Publication date: December 28, 2017Inventors: Christopher PAYNTER, Kalena STOVALL, Douglas WICKS, Gavin BUTLER-LEE, Parvin GOLBAYANI, Nigel Victor JARVIS, Graham M. PRING, David TAYLOR, Ricardo M. PEREZ
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Publication number: 20170233553Abstract: A functional filler composition for use with a vinyl chloride polymeric resin may include a treated alkali earth metal carbonate and a humectant. A method of forming a filled vinyl chloride-based polymer article may include mixing a vinyl chloride-based polymeric resin with a filler composition and forming a polymer article from the mixture. The filler composition comprising a treated alkali earth metal carbonate and a humectant. A surface treatment of the treated alkali earth metal carbonate includes at least a monolayer concentration of the surface treatment.Type: ApplicationFiled: October 21, 2015Publication date: August 17, 2017Inventors: Douglas WICKS, David ANSTINE, Christopher PAYNTER, David TAYLOR, Eric ERNST, David SKELHORN
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Publication number: 20170226854Abstract: Compositions and methods of using rock dust are disclosed. A mine rock dust may be capable of being applied in a wet form. A moisture tolerant mine rock dust may include a hydrophobic inorganic particulate material. A moisture tolerant mine rock dust may be capable of being dispersed by a light blast of air. A method may include applying a mine rock dust at a concentration having little or no respirable mine rock dust. A method of applying a mine rock dust may include applying a mine rock dust in a wet form. The mine rock dust may be applied at a concentration having little or no respirable mine rock dust. The mine rock dust may include a hydrophobic inorganic particulate material.Type: ApplicationFiled: October 23, 2015Publication date: August 10, 2017Applicant: Imerys USA, Inc.Inventors: Christopher PAYNTER, Douglas WICKS, David ANSTEIN