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).

  • Patent number: 9593085
    Abstract: 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: Grant
    Filed: April 2, 2013
    Date of Patent: March 14, 2017
    Inventors: Jerald Feldman, Stephan James McLain, Ying Wang
  • Publication number: 20150236278
    Abstract: 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: Application
    Filed: November 25, 2013
    Publication date: August 20, 2015
    Inventors: Lois Bryman, Kerwin D. Dobbs, Jerald Feldman, Troy C. Gehret, Stephan James McLain, Charles D. McLaren, Giang Dong Vo, Ying Wang
  • Publication number: 20150014675
    Abstract: 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: Application
    Filed: April 2, 2013
    Publication date: January 15, 2015
    Inventors: Jerald Feldman, Stephan James McLain, Ying Wang
  • Patent number: 8309376
    Abstract: 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: Grant
    Filed: October 24, 2008
    Date of Patent: November 13, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
  • Patent number: 8258341
    Abstract: 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: Grant
    Filed: July 10, 2009
    Date of Patent: September 4, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Alexander Borisovich Shtarov, Peter Michael Murphy, Brent Ryan Gonska, Stephan James McLain
  • Patent number: 8173848
    Abstract: 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: Grant
    Filed: July 1, 2008
    Date of Patent: May 8, 2012
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Stephan James Mclain
  • Patent number: 8022152
    Abstract: 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: Grant
    Filed: December 19, 2007
    Date of Patent: September 20, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: 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
  • Patent number: 7919423
    Abstract: 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: Grant
    Filed: February 2, 2010
    Date of Patent: April 5, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jerald Feldman, Stephan James McLain
  • Publication number: 20110009668
    Abstract: 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: Application
    Filed: July 10, 2009
    Publication date: January 13, 2011
    Applicant: E.I. DU POND DE NEMOURS AND COMPANY
    Inventors: Alexander Borisovich Shtarov, Peter Michael Murphy, Brent Ryan Gonska, Stephan James McLain
  • Publication number: 20100213454
    Abstract: 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: Application
    Filed: October 24, 2008
    Publication date: August 26, 2010
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles D. Lang, Paul Anthony Sant, Jerald Feldman, Steven Dale Ittel, Stephan James McLain
  • Patent number: 7737307
    Abstract: 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: Grant
    Filed: August 6, 2007
    Date of Patent: June 15, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Peter Michael Murphy, Andrew Edward Feiring, Stephan James McLain, Jessica Sinks
  • Publication number: 20100004478
    Abstract: 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: Application
    Filed: July 1, 2008
    Publication date: January 7, 2010
    Applicant: E. I. du Pont de Nemours and Company
    Inventor: Stephan James Mclain
  • Publication number: 20090197006
    Abstract: 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: Application
    Filed: December 18, 2006
    Publication date: August 6, 2009
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Jerald Feldman, Stephan James McLain, Robert John Barsotti, James William O'Neil
  • Publication number: 20090043133
    Abstract: 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: Application
    Filed: August 6, 2007
    Publication date: February 12, 2009
    Inventors: Peter Michael Murphy, Andrew Edward Feiring, Stephan James McLain, Jessica Sinks
  • Patent number: 7399887
    Abstract: 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: Grant
    Filed: August 6, 2007
    Date of Patent: July 15, 2008
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Peter Michael Murphy, Andrew Edward Feiring, Stephan James McLain, Jessica Sinks
  • Patent number: 6897272
    Abstract: 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: Grant
    Filed: August 23, 2000
    Date of Patent: May 24, 2005
    Assignee: E.I. Du Pont de Nemours and Company
    Inventors: Maurice S. Brookhart, Lynda Kaye Johnson, Samuel David Arthur, Stephan James McLain
  • Patent number: 6894134
    Abstract: 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: Grant
    Filed: June 22, 2001
    Date of Patent: May 17, 2005
    Assignees: E. I. duPont de Nemours and Company, University of North Carolina at Chapel Hill
    Inventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Samuel David Arthur
  • Patent number: 6670433
    Abstract: 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: Grant
    Filed: April 2, 2001
    Date of Patent: December 30, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephan James McLain, Elizabeth Forrester McCord, Alison Margaret Anne Bennett, Steven Dale Ittel, Karl Jeffrey Sweetman, Mark F. Teasley
  • Publication number: 20030171508
    Abstract: 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: Application
    Filed: June 22, 2001
    Publication date: September 11, 2003
    Inventors: 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
  • Patent number: 6573353
    Abstract: 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: Grant
    Filed: September 12, 2000
    Date of Patent: June 3, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Maurice S. Brookhart, Lynda Kaye Johnson, Christopher Moore Killian, Elizabeth Forrester McCord, Stephan James McLain, Daniel Joseph Tempel