Patents by Inventor Elliott Echt
Elliott Echt 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: 9796869Abstract: Disclosed are methods to form coatings on a substrate, the coatings comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by (i) a hydrolysis level of from about 85 to about 93 mol % and a 4 weight % aqueous viscosity of 15 centipoise (cp) or less; or (ii) a hydrolysis level of about 95 mol % to 100%; and an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Multilayer structures comprising the blend composition on a substrate are also disclosed.Type: GrantFiled: June 16, 2015Date of Patent: October 24, 2017Assignee: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Elliott Echt, Richard Allen Hayes
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Patent number: 9441132Abstract: Disclosed are methods to form coatings on a substrate, the coatings comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by a hydrolysis level of from about 85 to about 93 mole % and a 4 weight % aqueous viscosity at 20° C. of about 16 to about 75 centipoise; and an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Multilayer structures comprising the blend composition on a substrate are also disclosed.Type: GrantFiled: November 12, 2013Date of Patent: September 13, 2016Assignee: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Elliott Echt, Richard Allen Hayes
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Publication number: 20150275024Abstract: Disclosed are methods to form coatings on a substrate, the coatings comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by (i) a hydrolysis level of from about 85 to about 93 mol % and a 4 weight % aqueous viscosity of 15 centipoise (cp) or less; or (ii) a hydrolysis level of about 95 mol % to 100%; and an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Multilayer structures comprising the blend composition on a substrate are also disclosed.Type: ApplicationFiled: June 16, 2015Publication date: October 1, 2015Inventors: Elliott Echt, Richard Allen Hayes
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Patent number: 9085123Abstract: Disclosed are methods to form coatings on a substrate, the coatings comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by (i) a hydrolysis level of from about 85 to about 93 mol % and a 4 weight % aqueous viscosity of 15 centipoise (cp) or less; or (ii) a hydrolysis level of about 95 mol % to 100%; and an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Multilayer structures comprising the blend composition on a substrate are also disclosed.Type: GrantFiled: February 29, 2012Date of Patent: July 21, 2015Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Elliott Echt, Richard Allen Hayes
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Patent number: 8907022Abstract: Disclosed is a method for forming an aqueous dispersion of an ionomer composition comprising mixing a solid ionomer composition with water heated to a temperature from about 80 to about 90° C., the solid ionomer composition comprising an ethylene acid copolymer comprising about 18 to about 30 weight % of copolymerized units of acrylic acid or methacrylic acid, based on the total weight of the parent acid copolymer, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the total carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising sodium cations.Type: GrantFiled: August 20, 2012Date of Patent: December 9, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Richard Allen Hayes, Elliott Echt
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Publication number: 20140069565Abstract: Disclosed are methods to form coatings on a substrate, the coatings comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by a hydrolysis level of from about 85 to about 93 mole % and a 4 weight % aqueous viscosity at 20° C. of about 16 to about 75 centipoise; and an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Multilayer structures comprising the blend composition on a substrate are also disclosed.Type: ApplicationFiled: November 12, 2013Publication date: March 13, 2014Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: ELLIOTT ECHT, Richard Allen Hayes
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Publication number: 20130224505Abstract: Disclosed are methods to form coatings on a substrate, the coatings comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by (i) a hydrolysis level of from about 85 to about 93 mol % and a 4 weight % aqueous viscosity of 15 centipoise (cp) or less; or (ii) a hydrolysis level of about 95 mol % to 100%; and an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Multilayer structures comprising the blend composition on a substrate are also disclosed.Type: ApplicationFiled: February 29, 2012Publication date: August 29, 2013Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Elliott Echt, Richard Allen Hayes
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Publication number: 20130225749Abstract: Disclosed is a composition comprising (a) a poly(vinyl alcohol) characterized by (i) a hydrolysis level of from about 85 to about 93 mole % and a 4 weight % aqueous viscosity at 20° C. of 15 centipoise or less; or (ii) a hydrolysis level of about 95 mole % or greater; and (b) an ionomer comprising a parent acid copolymer comprising copolymerized units of ethylene and acrylic acid or methacrylic acid with melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts.Type: ApplicationFiled: February 29, 2012Publication date: August 29, 2013Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Elliott Echt, Richard Allen Hayes
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Publication number: 20130225750Abstract: Disclosed is a blend composition comprising a combination of (a) about 99 to about 1 weight %, based on the combination of (a) and (b), of a poly(vinyl alcohol) characterized by a hydrolysis level of from about 85 to about 93 mol % and a 4 weight % aqueous viscosity of 16 to about 75 centipoise; and (b) about 1 to about 99 weight % of an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium and/or sodium cations. Also disclosed are aqueous dispersions, methods to prepare the aqueous dispersions and articles comprising the blend composition.Type: ApplicationFiled: February 29, 2012Publication date: August 29, 2013Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Elliott Echt, Richard Allen Hayes
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Publication number: 20130225021Abstract: Disclosed are methods to form coatings on a substrate, the coatings comprising a blend of a poly(vinyl alcohol) composition comprising a poly(vinyl alcohol) characterized by a hydrolysis level of from about 85 to about 93 mole % and a 4 weight % aqueous viscosity at 20° C. of about 16 to about 75 centipoise; and an ionomer comprising a parent acid copolymer that comprises ethylene and about 18 to about 30 weight % of acrylic acid or methacrylic acid, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising potassium cations, sodium cations or combinations thereof. Multilayer structures comprising the blend composition on a substrate are also disclosed.Type: ApplicationFiled: February 29, 2012Publication date: August 29, 2013Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Elliott Echt, Richard Allen Hayes
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Publication number: 20130059972Abstract: Disclosed is a method for forming an aqueous dispersion of an ionomer composition comprising mixing a solid ionomer composition with water heated to a temperature from about 80 to about 90° C., the solid ionomer composition comprising an ethylene acid copolymer comprising about 18 to about 30 weight % of copolymerized units of acrylic acid or methacrylic acid, based on the total weight of the parent acid copolymer, the acid copolymer having a melt flow rate from about 200 to about 1000 g/10 min., wherein about 50% to about 70% of the total carboxylic acid groups of the copolymer are neutralized to carboxylic acid salts comprising sodium cations.Type: ApplicationFiled: August 20, 2012Publication date: March 7, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: Richard Allen Hayes, Elliott Echt
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Patent number: 8193126Abstract: The present invention provides a method for recovering oil from a subterranean reservoir using waterflooding, wherein the flooding fluid used in the waterflooding process comprises water and one or more ionic polyvinyl alcohol copolymers. The use of one or more ionic polyvinyl alcohol copolymers is expected to increase the recovery of oil by improving both the oil/water mobility ratio and the sweep efficiency in reservoirs with a high degree of heterogeneity.Type: GrantFiled: March 8, 2011Date of Patent: June 5, 2012Assignee: E.I. du Pont de Nemours and CompanyInventors: Scott Christopher Jackson, Peter A. Morken, George David Robinson, Elliott Echt
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Publication number: 20110160102Abstract: The present invention provides a method for recovering oil from a subterranean reservoir using waterflooding, wherein the flooding fluid used in the waterflooding process comprises water and one or more ionic polyvinyl alcohol copolymers. The use of one or more ionic polyvinyl alcohol copolymers is expected to increase the recovery of oil by improving both the oil/water mobility ratio and the sweep efficiency in reservoirs with a high degree of heterogeneity.Type: ApplicationFiled: March 8, 2011Publication date: June 30, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: SCOTT CHRISTOPHER JACKSON, PETER A. MORKEN, ELLIOTT ECHT, GEORGE DAVID ROBINSON
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Patent number: 7913759Abstract: The present invention provides a method for recovering oil from a subterranean reservoir using waterflooding, wherein the flooding fluid used in the waterflooding process comprises water and one or more ionic polyvinyl alcohol copolymers. The use of one or more ionic polyvinyl alcohol copolymers is expected to increase the recovery of oil by improving both the oil/water mobility ratio and the sweep efficiency in reservoirs with a high degree of heterogeneity.Type: GrantFiled: September 29, 2008Date of Patent: March 29, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Scott Christopher Jackson, Peter A. Morken, George David Robinson, Elliott Echt
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Patent number: 7608662Abstract: The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed, and a process for preparing the same.Type: GrantFiled: March 17, 2008Date of Patent: October 27, 2009Assignee: E. I. du Pont de Nemours and CompanyInventors: Elliott Echt, Peter A. Morken, G. Michael Collins
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Patent number: 7608661Abstract: The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95 % hydrolyzed, and a process for preparing the same.Type: GrantFiled: March 17, 2008Date of Patent: October 27, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Elliott Echt, Peter A. Morken, G. Michael Collins
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Patent number: 7608660Abstract: The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed, and a process for preparing the same.Type: GrantFiled: March 17, 2008Date of Patent: October 27, 2009Assignee: E.I. du Pont de Nemours and CompanyInventors: Elliott Echt, Peter A. Morken, G. Michael Collins
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Publication number: 20080176998Abstract: The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed, and a process for preparing the same.Type: ApplicationFiled: March 17, 2008Publication date: July 24, 2008Inventors: Elliott Echt, Peter A. Morken, G. Michael Collins
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Publication number: 20080176993Abstract: The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed, and a process for preparing the same.Type: ApplicationFiled: March 17, 2008Publication date: July 24, 2008Inventors: Elliott Echt, Peter A. Morken, G. Michael Collins
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Publication number: 20080171825Abstract: The present invention is a composition useful for coating the surface of paper wherein the coating composition is an aqueous solution comprising less than 40 wt % water and consisting essentially of a polyvinyl alcohol copolymer that is at least about 95% hydrolyzed, and a process for preparing the same.Type: ApplicationFiled: March 17, 2008Publication date: July 17, 2008Inventors: Elliott Echt, Peter A. Morken, G. Michael Collins