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: 7674499
    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 9, 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
  • Patent number: 7652099
    Abstract: A process for making coating compositions with adjustable properties by blending two or more coating compositions of distinctly different attributes to achieve custom properties. The coating compositions formed herein are particularly useful in automotive refinish applications where customized properties are desired depending on the needs of the job.
    Type: Grant
    Filed: September 11, 2006
    Date of Patent: January 26, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Denise Elizabeth Fiori, Carl L. Kishbaugh, Laura Ann Lewin, Brian Edward Priore, Audrey Pamela Stephenson
  • Patent number: 7608645
    Abstract: The present invention relates to the use of (meth)acrylate functionalized amide acetals as reactive components with crosslinking agents and UV radiation to give new coatings compositions.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 27, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert John Barsotti, Gary A. Johansson
  • Patent number: 7608303
    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 n on average is 1.7 to 2 and X stands for a cycloaliphatic norbornane derivative containing methylene amine groups of formula (II) either alone, as combinations of these, and/or as mixtures of isomers of these, in which the exact point of attachment and orientation of —CH2— group to the NH group and R20—R22 to the norbornane scaffold can vary and mixtures of compounds and isomers are commonly utilized by this invention; two component compositions and articles coated with the novel composition also are part of the invention.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: October 27, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Christian Peter Lenges, Robert John Barsotti, Patrick Henry Corcoran, Laura Ann Lewin, Stefan Reinartz
  • Patent number: 7504440
    Abstract: The present invention relates to novel poly(meth)acrylate compositions formed by polymerization of (meth)acrylate amide acetals.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: March 17, 2009
    Assignee: E.I. du Pont de Nemours & Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert John Barsotti, Patrick Henry Corcoran
  • Patent number: 7504459
    Abstract: The present invention relates to the use of (meth)acrylate functionalized amide acetals as reactive components with crosslinking agents to give new coatings compositions.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: March 17, 2009
    Assignee: E.I. Du Pont de Nemours & Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert John Barsotti
  • Patent number: 7479525
    Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about (a) 10-70% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having (i) a core of gelled polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stabilizer polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC (gel permeation chromatography) using polystyrene as the standard; wherein the core, the stabilizer polymeric component, or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having isocyanate groups attached thereto that are capable of reacting with component (b); (b) 30-90% by weight, based on the weight of the
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: January 20, 2009
    Assignee: E.I. Du Pont De Nemours & Company
    Inventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi
  • Publication number: 20080287622
    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: Application
    Filed: December 7, 2007
    Publication date: November 20, 2008
    Inventors: Jeffery W. Johnson, Robert R. Matheson, Donald A. White, Neville Everton Drysdale, Patrick Henry Corcoran, Laura Ann Lewin
  • Patent number: 7427647
    Abstract: A coating composition useful for coating automobile and truck bodies comprising a binder of a. polyisocyanate crosslinking agent; b. an isocyanate-reactive component having at least one compound having the following formula: wherein X, Y, R1, R2, m and n are described in the specification, and c. 0.05 to 10% by weight, based on the total weight of the coating composition, of a metal alkoxide compound; and containing optional additional polymeric components, oligomeric components and antioxidants, light absorbers and light stabilizers.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: September 23, 2008
    Assignee: E.I. du Pont de Nemours & Company
    Inventors: Stefan Reinartz, Robert John Barsotti, Patrick Henry Corcoran, Kalindi Dogra, Christian Peter Lenges, Laura Ann Lewin, Klaus Wissing
  • Patent number: 7355050
    Abstract: The present invention, in one aspect, is a composition comprising (meth)acrylate amide acetals. Acetals of the present invention are useful as components in coatings for automotive and architectural structures. Coatings comprising components of the present invention cure rapidly with low VOC emissions. In another aspect, the present invention provides a process for making (meth)acrylate amide acetals described herein.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 8, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert John Barsotti, Charles J. Brandenburg
  • Publication number: 20070197727
    Abstract: The present invention is directed to a multi component coating composition that includes a crosslinkable, crosslinking and catalyst components. The catalyst component includes organo zinc cocatalysts, organo tin catalysts, and carboxylic acids. The catalyst component provides long pot life to a pot mix obtained by mixing the aforementioned with components while simultaneously providing a coating resulting from the pot mix with desired coating properties, such as desired early hardness of a coating resulting from a relatively low temperature baking cure cycle.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 23, 2007
    Inventors: Laura Ann Lewin, James William O'Neil, Carl Brent Douglas, Denise Elizabeth Fiori
  • Publication number: 20070190258
    Abstract: The present invention is directed to a process for producing a coating from a multi component coating composition that includes a crosslinkable, crosslinking and catalyst components. The catalyst component includes organo zinc cocatalysts, organo tin catalysts, and carboxylic acids. The catalyst component provides long pot life to a pot mix obtained by mixing the aforementioned with components while simultaneously providing a coating resulting from the pot mix with desired coating properties, such as desired early hardness of a coating resulting from a relatively low temperature baking cure cycle.
    Type: Application
    Filed: February 13, 2007
    Publication date: August 16, 2007
    Inventors: Laura Ann Lewin, James William O'Neil, Carl Brent Douglas, Denise Elizabeth Fiori
  • Patent number: 7230112
    Abstract: Described in this invention is a catalytic process for making amide acetals from nitrites and diethanolamines. Amide acetals can be further crosslinked by hydrolyzing the amide acetal groups, and subsequently reacting the hydroxyl groups and/or the amine functions that are formed, to crosslink the composition.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: June 12, 2007
    Assignee: E. I. duPont de Nemours and Company
    Inventors: Douglas J. Adelman, Neville Everton Drysdale, Christian Peter Lenges, Mark A. Scialdone, Leen Tanghe, Jozef Theresia Huybrechts, Laura Ann Lewin, Robert John Barsotti
  • Patent number: 7214828
    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: May 8, 2007
    Assignee: E. I. duPont de Nemours and Company
    Inventors: Christian Peter Lenges, Alan Martin Allgeier, Robert John Barsotti, Patrick Henry Corcoran, Laura Ann Lewin, Stefan Reinartz
  • Patent number: 7148316
    Abstract: The present invention relates to the preparation of hydroxy-functionalized amide acetals from bis-(beta hydroxy)amines and hydroxyl containing moieties.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: December 12, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert John Barsotti
  • Patent number: 7135530
    Abstract: The present invention relates to polymeric/oligomeric methacrylate functionalized amide acetals are effective in preparing coating composition based on their reaction with isocyanates.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 14, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert John Barsotti, Patrick Henry Corcoran
  • Patent number: 7129290
    Abstract: Polymeric compositions containing spiroorthocarbonate groups and another functional group which reacts with hydroxyl groups are readily crosslinked on contact with water. These compositions are useful as sealants, coatings and encapsulants.
    Type: Grant
    Filed: January 11, 2002
    Date of Patent: October 31, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert John Barsotti, Patrick Henry Corcoran, Neville Everton Drysdale, Laura Ann Lewin
  • Publication number: 20060069266
    Abstract: The present invention relates to the preparation of hydroxy-functionalized amide acetals from bis-(beta hydroxy)amines and hydroxyl containing moieties.
    Type: Application
    Filed: September 30, 2005
    Publication date: March 30, 2006
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert Barsotti
  • Patent number: 6984693
    Abstract: A two-stage cure coating composition of a binder and a crosslinking component; the binder comprises and acrylic polymer having a weight average molecular weight of 3,000 to 50,000 and hydroxyl moieties in the range of 7.0 to 40.0 weight; wherein at least 40.0 weight percent of the hydroxyl moieties are provided by hydroxy butyl acrylate; the crosslinking component comprises an organic polyisocyanate; and the first stage curing of a finish of the composition forms a water spot free finish within 90 minutes of application and the composition has a pot life of less than a 2 second rise in Zahn cup viscosity in 150 minutes; and the invention also is directed to a method of producing a finish on a substrate utilizing the coating composition.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: January 10, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Laura Ann Lewin, Brian Patrick Devlin, Donald Albert Paquet, Jr., James Lamonte Adams
  • Publication number: 20040072955
    Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about
    Type: Application
    Filed: September 29, 2003
    Publication date: April 15, 2004
    Inventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi