Patents by Inventor Jacques Bernard Lechat

Jacques Bernard Lechat 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).

  • Radial block copolymers and adhesives based thereon with improved die-cutting performance
    Patent number: 7906583
    Abstract: Improved adhesives are provided through the use of styrenic radial block copolymers, containing at least 40 wt % diblock copolymers, the adhesives have improved adhesive properties and a reduced elastic behavior under die-cutting conditions. Compared to conventional linear block copolymers of similar molecular weight, radial copolymers offer higher holding power and lower melt viscosity for the adhesive. They therefore contribute to an improved balance between processability and end-use properties.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 15, 2011
    Assignees: The Dow Chemical Company, Exxon Mobil Chemical Patents Inc.
    Inventors: Jacques Bernard Lechat, Michael Oliver Myers, Marie-Noelle Cazenave, Christophe Derail, Nicolas Kappes, Jurgen Schroeyers
  • Radial Block Copolymers and Adhesives Based Thereon With Improved Die-Cutting Performance
    Publication number: 20090133834
    Abstract: Improved adhesives are provided through the use of styrenic radial block copolymers, containing at least 40 wt % diblock copolymers, the adhesives have improved adhesive properties and a reduced elastic behavior under die-cutting conditions. Compared to conventional linear block copolymers of similar molecular weight, radial copolymers offer higher holding power and lower melt viscosity for the adhesive. They therefore contribute to an improved balance between processability and end-use properties.
    Type: Application
    Filed: October 31, 2007
    Publication date: May 28, 2009
    Applicants: THE DOW CHEMICAL COMPANY, EXXONMOBIL CHEMICAL PATENTS, INC.
    Inventors: Jacques Bernard Lechat, Michael Oliver Myers, Marie-Noelle Cazenave, Christophe Derail, Nicolas Kappes, Jurgen Schroeyers
  • Road marking compound comprising linear tetrablock copolymers
    Patent number: 6627678
    Abstract: This invention relates generally to linear tetrablock copolymer compositions and their use in road marking applications. These tetrablock copolymers contain polystyrene, polyisoprene and polybutadiene components. Road marking compounds prepared from these copolymers further contain a hydrocarbon resin.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: September 30, 2003
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Roger Robert Delmé, Jacques Bernard Lechat, Chantal Mathilde Martin
  • Road marking compound comprising linear tetrablock copolymers
    Patent number: 6576686
    Abstract: This invention relates generally to linear tetrablock copolymer compositions and their use in road marking applications. These tetrablock copolymers contain polystyrene, polyisoprene and polybutadiene components. Road marking compounds prepared from these copolymers further contain a hydrocarbon resin.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: June 10, 2003
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Roger Robert Delmé, Jacques Bernard Lechat, Chantal Mathilde Martin
  • Road marking compound comprising linear tetrablock copolymers
    Publication number: 20030065053
    Abstract: This invention relates generally to linear tetrablock copolymer compositions and their use in road marking applications. These tetrablock copolymers contain polystyrene, polyisoprene and polybutadiene components. Road marking compounds prepared from these copolymers further contain a hydrocarbon resin.
    Type: Application
    Filed: October 23, 2002
    Publication date: April 3, 2003
    Inventors: Roger Robert Delme, Jacques Bernard Lechat, Chantal Mathilde Martin
  • Tetrablock copolymers
    Publication number: 20020132922
    Abstract: This invention relates generally to linear tetrablock copolymer compositions and their use in road marking applications. These tetrablock copolymers contain polystyrene, polyisoprene and polybutadiene components. Road marking compounds prepared from these copolymers further contain a hydrocarbon resin.
    Type: Application
    Filed: March 18, 2002
    Publication date: September 19, 2002
    Inventors: Roger Robert Delme, Jacques Bernard Lechat, Chantal Mathilde Martin