Patents by Inventor Laura Ann Lewin

Laura Ann Lewin 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: 9156057
    Abstract: The present invention is directed to a method for controlling the viscosity of a sprayable mixture. The sprayable mixture forms a layer of a coating composition on an applied substrate and forms crosslinked network after drying and curing the layer. The dried and cured composition provides the substrate with a coating having a good appearance.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: October 13, 2015
    Assignee: AXALT COATING SYSTEMS IP CO., LLC
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Patent number: 8754166
    Abstract: A multilayer paint system wherein each layer of paint uses the same activator and the same mixing ratio of film-forming binder to activator. The paint system herein is particularly useful for automotive refinishing applications.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: June 17, 2014
    Assignee: Axalta Coating Systems IP Co., LLC
    Inventors: Laura Ann Lewin, Denise Elizabeth Fiori, Carl L. Kishbaugh, Brian Edward Priore, Audrey Pamela Stephenson
  • Publication number: 20120282413
    Abstract: This invention is directed to a method for producing a coating layer of a coating composition by introducing a catalyst as a second component into an atomized stream of a first component of the coating composition. This invention is also directed to a spray gun for producing such coating layer.
    Type: Application
    Filed: May 4, 2011
    Publication date: November 8, 2012
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20120141684
    Abstract: This invention is directed to a method for producing a coating layer of a coating composition comprising two or more components. The two or more components are mixed post atomization. This invention is also directed to a spray gun having a spray needle comprising two or more spray channels for producing such coating layer.
    Type: Application
    Filed: June 25, 2010
    Publication date: June 7, 2012
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20120141683
    Abstract: This invention is directed to a method for producing a coating layer of a coating composition comprising two or more components. This invention is also directed to a spray gun having two or more spray channels for producing such coating layer.
    Type: Application
    Filed: June 25, 2010
    Publication date: June 7, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: John Charles Larson, Donald H. Brunk, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20120100297
    Abstract: This invention is directed to a method for producing a coating layer of a coating composition comprising two or more components. The two or more components are mixed post atomization. This invention is also directed to a spray gun having a delivery device for producing such coating layer.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 26, 2012
    Applicant: E. I. Du Pont De Nemours And Company
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20120100296
    Abstract: This invention is directed to a method for producing a coating layer of a coating composition comprising two or more components. The two or more components are mixed post atomization. This invention is also directed to a gravity fed spray gun having a spray needle comprising two or more spray channels for producing such coating layer.
    Type: Application
    Filed: June 25, 2010
    Publication date: April 26, 2012
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20110274931
    Abstract: The present invention is directed to a method for controlling the viscosity of a sprayable mixture. The sprayable mixture forms a layer of a coating composition on an applied substrate and forms crosslinked network after drying and curing the layer. The dried and cured composition provides the substrate with a coating having a good appearance.
    Type: Application
    Filed: December 23, 2009
    Publication date: November 10, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20110245411
    Abstract: The present invention is directed to a method for producing a sprayable composition on a substrate. The method comprises a step of introducing a crosslinking component into an atomized stream of a lacquer composition to improve the physical properties of an applied layer of lacquer composition while maintaining the excellent pot life properties. This invention is also directed to a delivery device and a system for introducing the catalyst into the atomized coating composition.
    Type: Application
    Filed: December 23, 2009
    Publication date: October 6, 2011
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20110224368
    Abstract: The present disclosure relates to a method for producing a sprayable mixture containing protected crosslinkable groups. The sprayable mixture has a substantially consistent viscosity and can produce a crosslinked coating composition having a good appearance useful in the painting industry.
    Type: Application
    Filed: December 23, 2009
    Publication date: September 15, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: John Charles Larson, Robert John Barsotti, Laura Ann Lewin
  • Publication number: 20110197811
    Abstract: The present invention is directed to a delivery device and a system for introducing a second component into an atomized composition. The present invention is particularly directed to a delivery device and a system for introducing a catalyst into an atomized coating composition.
    Type: Application
    Filed: December 23, 2008
    Publication date: August 18, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: John Charles Larson, Laura Ann Lewin, Robert John Barsotti
  • Publication number: 20110200835
    Abstract: The present invention is directed to a method for introducing a catalyst into an atomized coating composition. This invention is also directed to a delivery device and a system for introducing the catalyst into the atomized coating composition.
    Type: Application
    Filed: December 23, 2008
    Publication date: August 18, 2011
    Applicant: E.I. Du Pont De Nemours And Company
    Inventors: John Charles Larson, Laura Ann Lewin, Robert John Barsotti
  • Publication number: 20110059252
    Abstract: The present invention is directed to two component coating compositions that cure under ambient conditions and more particularly to those having low VOC (volatile organic content) that are suitable for use in automotive refinish and Original Equipment Manufacturing (OEM) applications. The coating composition includes crosslinkable and crosslinking components, wherein the crosslinkable component includes a low polydispersity, low molecular weight copolymer having on an average 2 to 25 functional groups, such as hydroxyl, carboxyl, acetoacetoxy, primary and secondary amine, and epoxy. The copolymer is polymerized from a monomer mixture that includes one or more non-functional acrylate monomers and one or more functional methacrylate monomers provided with the functional groups. The crosslinking component includes polyisocyanate, polyamine, ketimine, melamine, epoxy, polyacid or a combination thereof. The invention is also directed to coating produced from the coating composition.
    Type: Application
    Filed: November 15, 2010
    Publication date: March 10, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Donald Albert PAQUET, JR., Robert John BARSOTTI, Carl Brent DOUGLAS, Michael Charles GRADY, Laura Ann LEWIN
  • Patent number: 7897676
    Abstract: The present invention is directed to two component coating compositions that cure under ambient conditions and more particularly to those having low VOC (volatile organic content) that are suitable for use in automotive refinish and Original Equipment Manufacturing (OEM) applications. The coating composition includes crosslinkable and crosslinking components, wherein the crosslinkable component includes a low polydispersity, low molecular weight copolymer having on an average 2 to 25 functional groups, such as hydroxyl, carboxyl, acetoacetoxy, primary and secondary amine, and epoxy. The copolymer is polymerized from a monomer mixture that includes one or more non-functional acrylate monomers and one or more functional methacrylate monomers provided with the functional groups. The crosslinking component includes polyisocyanate, polyamine, ketimine, melamine, epoxy, polyacid or a combination thereof. The invention is also directed to coating produced from the coating composition.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 1, 2011
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Robert John Barsotti, Laura Ann Lewin, Carl Brent Douglas, Michael Charles Grady, Donald Albert Paquet, Jr.
  • Patent number: 7888440
    Abstract: The present process is directed to preparation of addition polymers in diluents that are subsequently reactive in coatings during cure, instead of in traditional hydrocarbon solvents. The polymers so prepared can be used as the main film-forming polymer in high solids coating compositions, especially those useful for finishing automobiles and truck exteriors.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: February 15, 2011
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: Jeffery W. Johnson, Robert R. Matheson, Donald A. White, Neville Everton Drysdale, Patrick Henry Corcoran, Laura Ann Lewin
  • Patent number: 7858692
    Abstract: The present invention is directed to two component coating compositions that cure under ambient conditions and more particularly to those having low VOC (volatile organic content) that are suitable for use in automotive refinish and Original Equipment Manufacturing (OEM) applications. The coating composition includes crosslinkable and crosslinking components, wherein the crosslinkable component includes a low polydispersity, low molecular weight copolymer having on an average 2 to 25 functional groups, such as hydroxyl, carboxyl, acetoacetoxy, primary and secondary amine, and epoxy. The copolymer is polymerized from a monomer mixture that includes one or more non-functional acrylate monomers and one or more functional methacrylate monomers provided with the functional groups. The crosslinking component includes polyisocyanate, polyamine, ketimine, melamine, epoxy, polyacid or a combination thereof. The invention is also directed to coating produced from the coating composition.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: December 28, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Donald Albert Paquet, Jr., Robert John Barsotti, Laura Ann Lewin, Carl Brent Douglas, Michael Charles Grady
  • Patent number: 7812173
    Abstract: The present disclosure relates to the preparation and use of tetrahydro-1,8-dioxa-4a-aza-naphthalenes in low VOC coatings.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: October 12, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin
  • Patent number: 7737243
    Abstract: This invention relates to coating compositions and more particularly to highly productive coating compositions that quickly harden for sanding or buffing by incorporating therein a polyisocyanate adduct mixture into the coating composition as the crosslinking material. Such coatings are particularly useful for refinishing automobiles and trucks.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: June 15, 2010
    Assignees: E. I. du Pont de Nemours and Company
    Inventors: Jerome T. Adams, Robert John Barsotti, Laura Ann Lewin, Reinhard Halpaap, Dieter Mager, Myron W. Shaffer, James Lamonte Adams, James William O'Neil
  • Publication number: 20100099806
    Abstract: The present invention is directed to a process for producing compositions containing dimethyl carbonate alone or in combination with other co-solvent and more particularly directed to low VOC coating compositions used in automotive refinish applications.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 22, 2010
    Inventors: Eric C. Houze, Laura Ann Lewin
  • Patent number: 7682665
    Abstract: A coating composition comprising a binder of a. polyisocyanate crosslinking agent; b. an isocyanate-reactive component having at least one compound having the following formula: wherein X, R1, R2, p, m and n are described in the specification, or isomer or mixture of isomers thereof, two component compositions, articles coated with the novel composition and novel hydroxy amines are also part of the invention.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: March 23, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Christian Peter Lenges, Alan Martin Allgeier, Robert John Barsotti, Patrick Henry Corcoran, Laura Ann Lewin, Stefan Reinartz