Patents by Inventor Christian Peter Lenges

Christian Peter Lenges 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: 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: 7166748
    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 (I) including isomers and mixtures of isomers thereof: ?wherein ?R, R1, R2, X, Y, Z, m, n, p, q, r and s are described in the specification and a two component composition formulated with the above constituents and substrates, such as, automotive and truck bodies and parts coated with the novel composition and novel amine and/or hydroxy amine compounds are also part of the invention.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: January 23, 2007
    Assignee: E.I. duPont de Nemours & Co.
    Inventors: Christian Peter Lenges, Domenic J. Barsotti, Robert John Barsotti, Kalindi Dogra, Helen S. M. Lu, Stefan Reinartz
  • Patent number: 7157536
    Abstract: A composition that can be used as a component in auto clear coat and primer is disclosed. The composition comprises or is an alkoxylated amine having the formula of (A)[N(R1H)2]p including an isomer or mixture of isomers thereof. Also disclosed is a process, which comprises contacting an amine with an epoxide under a condition sufficient to produce an alkoxylated amine. Further disclosed is a composition that can be used as coating composition and primer, which comprises an alkoxylated amine and an organic polyisocyanate.
    Type: Grant
    Filed: January 19, 2004
    Date of Patent: January 2, 2007
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Gia Huynh-Ba, Patrick Henry Corcoran, Carl Brent Douglas, Christian Peter Lenges, John Stuart Coates