Patents by Inventor Daniel F. Varnell
Daniel F. Varnell 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: 11879031Abstract: Provided are methods for the purification of polymer solutions. In particular, the method enables the separation of impurities from an oxazoline polymer solution by raising the temperature of the polymer solution above its lower critical solution temperature (LCST), wherein a water rich phase and a polymer rich phase separation occurs. The phases are then separated with the polymer rich phase containing a lower amount of impurities than before separation.Type: GrantFiled: October 22, 2020Date of Patent: January 23, 2024Assignee: Solenis Technologies, L.P.Inventor: Daniel F. Varnell
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Patent number: 11809129Abstract: A method of enhancing adhesion of an image to at least one surface of a substrate is provided herein. The method includes treating at least a portion of the surface by applying a composition comprising one or more polymers to the portion of the surface. The method further includes drying the composition after applying the composition to the substrate to form a treated substrate. The method further includes printing an image from an electrophotographic printer utilizing liquid toner technology on the treated substrate. The substrate is treated and dried less than about 5 minutes prior to being printed.Type: GrantFiled: January 29, 2021Date of Patent: November 7, 2023Assignee: Solenis Technologies, L.P.Inventor: Daniel F. Varnell
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Publication number: 20220213308Abstract: An aqueous composition includes water and a cationic polymeric resin having at least one reactive aldehyde group and formed from the reaction of glyoxal and a polymer. The polymer comprises at least one acrylamide repeating unit and at least one cationic repeating unit wherein a number of reactive aldehyde equivalents divided by a number of equivalents of residual glyoxal based on the total weight of the polymer is greater than about 1.2, wherein prior to reaction the polymer has greater than about 50 mole % acrylamide repeat units and from about 2 to about 30 mole % cationic repeating units, wherein greater than about 5 mole % of the acrylamide repeating units are converted to reactive aldehyde groups in the cationic polymer resin; and wherein the composition exhibits a viscosity gain of less than about 200%.Type: ApplicationFiled: January 4, 2022Publication date: July 7, 2022Applicant: SOLENIS TECHNOLOGIES, L.P.Inventors: Daniel F. Varnell, Richard J. Riehle
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Publication number: 20220127389Abstract: Provided are methods for the purification of polymer solutions. In particular, the method enables the separation of impurities from an oxazoline polymer solution by raising the temperature of the polymer solution above its lower critical solution temperature (LCST), wherein a water rich phase and a polymer rich phase separation occurs. The phases are then separated with the polymer rich phase containing a lower amount of impurities than before separation.Type: ApplicationFiled: October 22, 2020Publication date: April 28, 2022Applicant: SOLENIS TECHNOLOGIES, L.P.Inventor: Daniel F. Varnell
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Publication number: 20210403680Abstract: Compositions and methods that generally relates to treating a substrate and for improving adhesion of an image to a treated substrate and more particularly relates to systems and methods utilizing a combination of a poly tertiary amide, colloidal silica, and optionally a polymeric binder, for treating a substrate and for improving adhesion of an electrographic image to a treated substrate.Type: ApplicationFiled: June 22, 2021Publication date: December 30, 2021Applicant: SOLENIS TECHNOLOGIES, L.P.Inventor: Daniel F. Varnell
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Publication number: 20210208520Abstract: A method of enhancing adhesion of an image to at least one surface of a substrate is provided herein. The method includes treating at least a portion of the surface by applying a composition comprising one or more polymers to the portion of the surface. The method further includes drying the composition after applying the composition to the substrate to form a treated substrate. The method further includes printing an image from an electrophotographic printer utilizing liquid toner technology on the treated substrate. The substrate is treated and dried less than about 5 minutes prior to being printed.Type: ApplicationFiled: January 29, 2021Publication date: July 8, 2021Applicant: SOLENIS TECHNOLOGIES, L.P.Inventor: Daniel F. Varnell
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Patent number: 11028538Abstract: A composition for increasing paper strength includes a dialdehyde-modified polyacrylamide strengthening agent, a water soluble compound that is soluble at about 5 wt % or greater in water at about 25° C., and water. The water soluble compound is typically present in a weight amount that is greater than a weight amount of the strengthening agent. The composition is formed by combining the strengthening agent and the water soluble compound in aqueous media to form the composition, wherein on a dry basis the water soluble compound is typically present in a greater amount than the strengthening agent, drying the composition to form a powder or paste that has a water content of less than about 10 weight percent and is stable after storage at about room temperature for about six months, and reconstituting the powder or paste by adding water thereto. The reconstituted composition may then be used to make paper.Type: GrantFiled: February 28, 2019Date of Patent: June 8, 2021Assignee: SOLENIS TECHNOLOGIES, L.P.Inventors: Sachin Borkar, Daniel F. Varnell
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Patent number: 10908522Abstract: A method of enhancing adhesion of an image to at least one surface of a substrate is provided herein. The method includes treating at least a portion of the surface by applying a composition comprising one or more polymers to the portion of the surface. The method further includes drying the composition after applying the composition to the substrate to form a treated substrate. The method further includes printing an image from an electrophotographic printer utilizing liquid toner technology on the treated substrate. The substrate is treated and dried less than about 5 minutes prior to being printed.Type: GrantFiled: May 14, 2018Date of Patent: February 2, 2021Assignee: Solenis Technologies, L.P.Inventor: Daniel F. Varnell
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Patent number: 10865526Abstract: A composition and method for imparting paper and paperboard with resistance to aqueous penetrants using renewable biopolymers, and the resulting paper and paperboard, are disclosed. The renewable biopolymers when combined with water-soluble, hydroxylated polymers or water-soluble salts and applied to the surface of paper or paperboard, results in resistance to aqueous penetrants.Type: GrantFiled: July 11, 2019Date of Patent: December 15, 2020Assignee: SOLENIS TECHNOLOGIES, L.P.Inventors: Susan M. Ehrhardt, Daniel F. Varnell
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Patent number: 10865525Abstract: A composition and method for imparting paper and paperboard with resistance to aqueous penetrants using renewable biopolymers, and the resulting paper and paperboard, are disclosed. The renewable biopolymers when combined with water-soluble, hydroxylated polymers or water-soluble salts and applied to the surface of paper or paperboard, results in resistance to aqueous penetrants.Type: GrantFiled: April 21, 2017Date of Patent: December 15, 2020Assignee: SOLENIS TECHNOLOGIES, L.P.Inventors: Susan M Ehrhardt, Daniel F Varnell
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Publication number: 20200277735Abstract: A composition for increasing paper strength includes a dialdehyde-modified polyacrylamide strengthening agent, a water soluble compound that is soluble at about 5 wt % or greater in water at about 25° C., and water. The water soluble compound is typically present in a weight amount that is greater than a weight amount of the strengthening agent. The composition is formed by combining the strengthening agent and the water soluble compound in aqueous media to form the composition, wherein on a dry basis the water soluble compound is typically present in a greater amount than the strengthening agent, drying the composition to form a powder or paste that has a water content of less than about 10 weight percent and is stable after storage at about room temperature for about six months, and reconstituting the powder or paste by adding water thereto. The reconstituted composition may then be used to make paper.Type: ApplicationFiled: February 28, 2019Publication date: September 3, 2020Applicant: SOLENIS TECHNOLOGIES, L.P.Inventors: Sachin Borkar, Daniel F. Varnell
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Patent number: 10613449Abstract: A method for treating a substrate is provided herein. The method includes providing a substrate and applying a composition to the substrate to form the treated substrate. The composition includes a binder, a binder additive, and an aluminum salt. A method for improving adhesion of an image to the treated substrate is also provided herein. The method includes providing the substrate, applying the composition to the substrate to form the treated substrate, and applying a liquid toner to the treated substrate to form the image on the treated substrate. A printed material exhibiting improved adhesion of the image to the treated substrate is also provided herein. The printed material includes a treated substrate. The treated substrate includes the substrate and a coating disposed on the substrate and formed from the composition. The printed material further includes the image disposed on the treated substrate and formed from the liquid toner.Type: GrantFiled: March 29, 2018Date of Patent: April 7, 2020Assignee: SOLENIS TECHNOLOGIES, L.P.Inventor: Daniel F. Varnell
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Publication number: 20190330803Abstract: A composition and method for imparting paper and paperboard with resistance to aqueous penetrants using renewable biopolymers, and the resulting paper and paperboard, are disclosed. The renewable biopolymers when combined with water-soluble, hydroxylated polymers or water-soluble salts and applied to the surface of paper or paperboard, results in resistance to aqueous penetrants.Type: ApplicationFiled: July 11, 2019Publication date: October 31, 2019Applicant: SOLENIS TECHNOLOGIES, L.P.Inventors: Susan M. Ehrhardt, Daniel F. Varnell
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Publication number: 20190302636Abstract: A method for treating a substrate is provided herein. The method includes providing a substrate and applying a composition to the substrate to form the treated substrate. The composition includes a binder, a binder additive, and an aluminum salt. A method for improving adhesion of an image to the treated substrate is also provided herein. The method includes providing the substrate, applying the composition to the substrate to form the treated substrate, and applying a liquid toner to the treated substrate to form the image on the treated substrate. A printed material exhibiting improved adhesion of the image to the treated substrate is also provided herein. The printed material includes a treated substrate. The treated substrate includes the substrate and a coating disposed on the substrate and formed from the composition. The printed material further includes the image disposed on the treated substrate and formed from the liquid toner.Type: ApplicationFiled: March 29, 2018Publication date: October 3, 2019Inventor: Daniel F. Varnell
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Patent number: 10372051Abstract: A method of improving the adhesion of a liquid ink to a substrate where the ink is applied to the substrate using an LEP printing process, and products therefrom.Type: GrantFiled: May 17, 2017Date of Patent: August 6, 2019Assignee: SOLENIS TECHNOLOGIES, L.P.Inventor: Daniel F Varnell
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Patent number: 10300638Abstract: The invention is directed to a process for the manufacture of composite wood structures, which provides for increased production rates and machinability. More particularly, the process comprises combining wood particles with a composition comprising an aqueous protein and diluent dispersion.Type: GrantFiled: February 24, 2017Date of Patent: May 28, 2019Assignee: SOLENIS TECHNOLOGIES, L.P.Inventors: Timothy L. Chaffee, Daniel F. Varnell
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Publication number: 20180335711Abstract: A method of enhancing adhesion of an image to at least one surface of a substrate is provided herein. The method includes treating at least a portion of the surface by applying a composition comprising one or more polymers to the portion of the surface. The method further includes drying the composition after applying the composition to the substrate to form a treated substrate. The method further includes printing an image from an electrophotographic printer utilizing liquid toner technology on the treated substrate. The substrate is treated and dried less than about 5 minutes prior to being printed.Type: ApplicationFiled: May 14, 2018Publication date: November 22, 2018Inventor: Daniel F. Varnell
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Publication number: 20170336725Abstract: A method of improving the adhesion of a liquid ink to a substrate where the ink is applied to the substrate using an LEP printing process, and products therefrom.Type: ApplicationFiled: May 17, 2017Publication date: November 23, 2017Inventor: Daniel F. Varnell
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Publication number: 20170335520Abstract: A composition and method for imparting paper and paperboard with resistance to aqueous penetrants using renewable biopolymers, and the resulting paper and paperboard, are disclosed. The renewable biopolymers when combined with water-soluble, hydroxylated polymers or water-soluble salts and applied to the surface of paper or paperboard, results in resistance to aqueous penetrants.Type: ApplicationFiled: April 21, 2017Publication date: November 23, 2017Inventors: Susan M Ehrhardt, Daniel F Varnell
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Publication number: 20170252950Abstract: The invention is directed to a process for the manufacture of composite wood structures, which provides for increased production rates and machinability. More particularly, the process comprises combining wood particles with a composition comprising an aqueous protein and diluent dispersion.Type: ApplicationFiled: February 24, 2017Publication date: September 7, 2017Inventors: Timothy L. Chaffee, Daniel F. Varnell