Patents by Inventor Stephan James McLain
Stephan James McLain 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: 9593085Abstract: There is provided a compound having Formula I In the formula: R1 can be alkyl, aryl, alkylaryl, or deuterated analogs thereof; R2 can be alkyl or deuterated alkyl; R3 can be H, D, aryl, or deuterated aryl; and R4-R6 are the same or different and can be H, D, alkyl, or deuterated alkyl. In the formula, at least one of the following conditions is met: (i) R1 is a secondary alkyl, a tertiary alkyl, aryl, alkylaryl, or deuterated analog thereof; (ii) R3 is aryl or deuterated aryl; (iii) at least one of R3-R6 is D.Type: GrantFiled: April 2, 2013Date of Patent: March 14, 2017Inventors: Jerald Feldman, Stephan James McLain, Ying Wang
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Publication number: 20150236278Abstract: There is provided a compound having Formula II In Formula II: R1 can be alkyl having 1-6 carbons, silyl having 3-6 carbons, or a deuterated analog thereof; R2 can be alkyl, silyl, aryl, or a deuterated analog thereof; a and c are the same or different and are an integer from 0-4; and b is an integer from 0-5.Type: ApplicationFiled: November 25, 2013Publication date: August 20, 2015Inventors: Lois Bryman, Kerwin D. Dobbs, Jerald Feldman, Troy C. Gehret, Stephan James McLain, Charles D. McLaren, Giang Dong Vo, Ying Wang
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Publication number: 20150014675Abstract: There is provided a compound having Formula I In the formula: R1 can be alkyl, aryl, alkylaryl, or deuterated analogs thereof; R2 can be alkyl or deuterated alkyl; R3 can be H, D, aryl, or deuterated aryl; and R4-R6 are the same or different and can be H, D, alkyl, or deuterated alkyl. In the formula, at least one of the following conditions is met; (i) R1 is a secondary alkyl, a tertiary alkyl, aryl, alkylaryl, or deuterated analog thereof; (ii) R3 is aryl or deuterated aryl; (iii) at least one of R3-R6 is D.Type: ApplicationFiled: April 2, 2013Publication date: January 15, 2015Inventors: Jerald Feldman, Stephan James McLain, Ying Wang
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Patent number: 8309376Abstract: There is provided a process for forming a contained second layer over a first layer. The process comprises forming the first layer having a first surface energy and then treating the first layer with a photocurable surface-active composition which is a fluorinated ester or fluorinated imide of an ?,?-unsaturated polyacid; exposing the photocurable surface-active composition patternwise with radiation resulting in exposed areas and unexposed areas; developing the photocurable surface-active composition to remove the unexposed areas resulting in a first layer having untreated portions in the unexposed areas and treated portions in the exposed areas, where the treated portions have a second surface energy that is lower than the first surface energy; and forming the second layer on the untreated portions of the first layer. There is also provided an organic electronic device made by the process.Type: GrantFiled: October 24, 2008Date of Patent: November 13, 2012Assignee: E I du Pont de Nemours and CompanyInventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
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Patent number: 8258341Abstract: Current methods for making polyfluorosulfonamido amines, which involve the use of a diamine reactant, provide low yields and produce an undesirable fluorine containing bis-sulfonamide by-product representing an economic loss. The bis-sulfonamide by-product is particularly undesirable because it shares very similar physical properties with the desired monoamine product thus making isolation of the desired polyfluorosulfonamido amine product difficult and costly. Furthermore, instead of the efficient incorporation of fluorine to make the desired polyfluorosulfonamido amine product, the bis-sulfonamide by-product constitutes a substantial loss of costly fluorinated starting material. The bis-sulfonamide by-product also constitutes an undesirable impurity that can worsen surfactancy, repellency, or other performance characteristics of the desired polyfluorosulfonamido amine product.Type: GrantFiled: July 10, 2009Date of Patent: September 4, 2012Assignee: E.I. du Pont de Nemours and CompanyInventors: Alexander Borisovich Shtarov, Peter Michael Murphy, Brent Ryan Gonska, Stephan James McLain
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Patent number: 8173848Abstract: A compound comprising Formula 5 RfOCFHCF2O(CH2CH2O)v—H??Formula 5 wherein Rf is CcF(2c+1); c is 2 to about 6; and v is 2 to about 4; and a process for its preparation comprising contacting a compound of Formula 6 Rf—O—CF?CF2??Formula 6 wherein Rf is CcF(2c+1), and c is 2 to about 6, with a compound of Formula 7 HO—(CH2CH2O)v—H??Formula 7 wherein v is 2 to about 4.Type: GrantFiled: July 1, 2008Date of Patent: May 8, 2012Assignee: E.I. du Pont de Nemours and CompanyInventor: Stephan James Mclain
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Patent number: 8022152Abstract: Ethylene and allyl- or vinylsilanes are efficiently copolymerized by certain late transition metal complexes containing selected bidentate or tridentate ligands. The resulting novel polymers may be crosslinked by moisture when vinylsilane contains groups bound to silicon which are hydrolyzable. The polymers are useful for wire coating, crosslinked foams, pipes, and other uses.Type: GrantFiled: December 19, 2007Date of Patent: September 20, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Steven Dale Ittel, Lynda Kaye Johnson, Lin Wang, Ying Wang, Elizabeth Forrester McCord, Catherine E. Radzewich, Stephan James McLain, Karl Jeffrey Sweetman, Alison Margaret Anne Bennett, Alex Sergey Ionkin, Rinaldo Soria Schiffino
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Patent number: 7919423Abstract: This invention relates to an organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.Type: GrantFiled: February 2, 2010Date of Patent: April 5, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Jerald Feldman, Stephan James McLain
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Publication number: 20110009668Abstract: Current methods for making polyfluorosulfonamido amines, which involve the use of a diamine reactant, provide low yields and produce an undesirable fluorine containing bis-sulfonamide by-product representing an economic loss. The bis-sulfonamide by-product is particularly undesirable because it shares very similar physical properties with the desired monoamine product thus making isolation of the desired polyfluorosulfonamido amine product difficult and costly. Furthermore, instead of the efficient incorporation of fluorine to make the desired polyfluorosulfonamido amine product, the bis-sulfonamide by-product constitutes a substantial loss of costly fluorinated starting material. The bis-sulfonamide by-product also constitutes an undesirable impurity that can worsen surfactancy, repellency, or other performance characteristics of the desired polyfluorosulfonamido amine product.Type: ApplicationFiled: July 10, 2009Publication date: January 13, 2011Applicant: E.I. DU POND DE NEMOURS AND COMPANYInventors: Alexander Borisovich Shtarov, Peter Michael Murphy, Brent Ryan Gonska, Stephan James McLain
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Publication number: 20100213454Abstract: There is provided a process for forming a contained second layer over a first layer. The process comprises forming the first layer having a first surface energy and then treating the first layer with a photocurable surface-active composition which is a fluorinated ester or fluorinated imide of an ?,?-unsaturated polyacid; exposing the photocurable surface-active composition patternwise with radiation resulting in exposed areas and unexposed areas; developing the photocurable surface-active composition to remove the unexposed areas resulting in a first layer having untreated portions in the unexposed areas and treated portions in the exposed areas, where the treated portions have a second surface energy that is lower than the first surface energy; and forming the second layer on the untreated portions of the first layer. There is also provided an organic electronic device made by the process.Type: ApplicationFiled: October 24, 2008Publication date: August 26, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
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Patent number: 7737307Abstract: A compound comprising Formula I, or a mixture thereof, Rf—OCFHCF2O—[CH2CH2O]x—[C3H7O]y-A??Formula I wherein Rf is CnF2n+1, n is 1 to about 6, x is a mixture of positive integers and is 4 or greater, y is 0 to about 4, provided that the ratio of y to x is equal to or less than 0.25, A is RfOCHFCF2 or CmH2m+1, and m is 1 to about 24 and its use in lowering surface tension and imparting improved surface effects is disclosed.Type: GrantFiled: August 6, 2007Date of Patent: June 15, 2010Assignee: E. I. du Pont de Nemours and CompanyInventors: Peter Michael Murphy, Andrew Edward Feiring, Stephan James McLain, Jessica Sinks
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Publication number: 20100004478Abstract: A compound comprising Formula 5 RfOCFHCF2O(CH2CH2O)v—H??Formula 5 wherein Rf is CcF(2c+1); c is 2 to about 6; and v is 2 to about 4; and a process for its preparation comprising contacting a compound of Formula 6 Rf—O—CF?CF2??Formula 6 wherein Rf is CcF(2c+1), and c is 2 to about 6, with a compound of Formula 7 HO—(CH2CH2O)v—H??Formula 7 wherein v is 2 to about 4.Type: ApplicationFiled: July 1, 2008Publication date: January 7, 2010Applicant: E. I. du Pont de Nemours and CompanyInventor: Stephan James Mclain
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Publication number: 20090197006Abstract: This invention relates to a protected organotin-based catalyst system for polyurethane synthesis that is useful in coatings applications. The catalyst has low activity in the absence of oxygen. When a coating mixture comprising the catalyst is sprayed and/or applied to a substrate as a thin film in air, the catalyst is activated. For solvent-based refinish systems comprising hydroxyl and isocyanate species at high solids levels, the catalyst system therefore provides extended viscosity stability, i.e., pot life.Type: ApplicationFiled: December 18, 2006Publication date: August 6, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Jerald Feldman, Stephan James McLain, Robert John Barsotti, James William O'Neil
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Publication number: 20090043133Abstract: A compound comprising Formula I, or a mixture thereof, Rf—OCFHCF2O—[CH2CH2O]x—[C3H7O]y-A ??Formula I wherein Rf is CnF2n+1, n is 1 to about 6, x is a mixture of positive integers and is 4 or greater, y is 0 to about 4, provided that the ratio of y to x is equal to or less than 0.25, A is RfOCHFCF2 or CmH2m+1, and m is 0 to about 24 and its use in lowering surface tension and imparting improved surface effects is disclosed.Type: ApplicationFiled: August 6, 2007Publication date: February 12, 2009Inventors: Peter Michael Murphy, Andrew Edward Feiring, Stephan James McLain, Jessica Sinks
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Patent number: 7399887Abstract: A compound comprising Formula I, or a mixture thereof, wherein Y is a bond or CmH2m?p(OA)p wherein m is 0 to 4, and p is 0 or 1, X? is X or H, X is CH2CH2OA, CH(CH2OA)2, C(CH2OA)3, or X and X? combine to form (CH2CH2)2NCH2CH2OA or (CH2CH2)2O, provided that when X and X? combine to form (CH2CH2)2O then Y is CH2CH(OA)CH2, A is CF2CFHO—Rf or H, Rf is CnF2n+1 wherein n is an integer of 1 to about 6, M is a cation having a charge equal to a, and a is a positive integer equal to 1 or 2, provided that at least one of X, X?, or Y contains A equal to CF2CFHO—Rf, and its use in lowering surface tension and imparting improved surface effects.Type: GrantFiled: August 6, 2007Date of Patent: July 15, 2008Assignee: E. I. du Pont de Nemours and CompanyInventors: Peter Michael Murphy, Andrew Edward Feiring, Stephan James McLain, Jessica Sinks
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Patent number: 6897272Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: GrantFiled: August 23, 2000Date of Patent: May 24, 2005Assignee: E.I. Du Pont de Nemours and CompanyInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Samuel David Arthur, Stephan James McLain
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Patent number: 6894134Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: GrantFiled: June 22, 2001Date of Patent: May 17, 2005Assignees: E. I. duPont de Nemours and Company, University of North Carolina at Chapel HillInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Samuel David Arthur
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Patent number: 6670433Abstract: Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected &agr;-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel higher melting homopolycyclopentenes.Type: GrantFiled: April 2, 2001Date of Patent: December 30, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Stephan James McLain, Elizabeth Forrester McCord, Alison Margaret Anne Bennett, Steven Dale Ittel, Karl Jeffrey Sweetman, Mark F. Teasley
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Publication number: 20030171508Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: ApplicationFiled: June 22, 2001Publication date: September 11, 2003Inventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Samuel David Arthur, Jerald Feldman, Elizabeth Forrester McCord, Stephan James McLain, Kristina Ann Kreutzer, Alison Margaret Anne Bennett, Edward Bryan Coughlin, Steven Dale Ittel, Anju Parthasarathy, Daniel Joseph Tempel
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Patent number: 6573353Abstract: Disclosed herein are processes for polymerizing ethylene, acyclic olefins, and/or selected cyclic olefins, and optionally selected olefinic esters or carboxylic acids, and other monomers. The polymerizations are catalyzed by selected transition metal compounds, and sometimes other co-catalysts. Since some of the polymerizations exhibit some characteristics of living polymerizations, block copolymers can be readily made. Many of the polymers produced are often novel, particularly in regard to their microstructure, which gives some of them unusual properties. Numerous novel catalysts are disclosed, as well as some novel processes for making them. The polymers made are useful as elastomers, molding resins, in adhesives, etc.Type: GrantFiled: September 12, 2000Date of Patent: June 3, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Daniel Joseph Tempel