Patents by Inventor Serge Lorek

Serge Lorek 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).

  • Adhesive bonding agent for PVDF, its application as barrier material and material obtained from the latter
    Patent number: 6143415
    Abstract: The invention relates to a bonding agent for PVDF, containing alkyl (alkyl)acrylate units and units bearing a carboxylic acid functional group. This bonding agent, containing PVDF, forms a barrier to hydrocarbons. The invention also relates to the material including the present bonding agent, especially petrol pipes including polyamide and the present bonding agent, in conjunction with PVDF.
    Type: Grant
    Filed: September 3, 1996
    Date of Patent: November 7, 2000
    Assignee: Elf Atochem S.A.
    Inventors: Serge Lorek, Philippe Bussi, Philippe Renouard
  • Petrol supply tube
    Patent number: 6041826
    Abstract: Polyamide-based petrol supply tube, especially for engines, characterized in that it comprises an outer layer of polyamide, a middle layer of fluoropolymer, preferably of PVDF, and an inner layer of polyamide, these layers being respectively bonded to each other by layers of adhesive bonding agent.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: March 28, 2000
    Assignee: Elf Atochem S.A.
    Inventors: Serge Lorek, Olivier Denizart, Daniel Siour
  • Adhesion binder containing glutarimide moieties
    Patent number: 6040025
    Abstract: The present invention is directed to a multilayer material having in order a layer of fluorinated polymer, a layer of binder for fluorinated polymer having a polymer A with moieties (1)-(4), and a layer of polymer which is incompatible with the fluorinated polymer. The multilayer material is useful for making a pipe which has a superior barrier properties to petroleum products and the additives thereof. The present invention also relates to a pipe having a multilayer structure having two layers of polyamide and a layer of binder comprising a polymer A with glutarimide moieties (1)-(4) in between. The pipe has superior barrier properties to petroleum products and the additives.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: March 21, 2000
    Assignee: Elf Atochem S.A.
    Inventor: Serge Lorek
  • Adhesion binder with glutarimide units moieties
    Patent number: 5939492
    Abstract: This invention provides an adhesion binder for binding fluorinated polymers, for example, PVDF, with incompatible polymers such as polyamides. The binder is a polymer A which has glutarimide, acid, anhydric and acrylate units, and is useful for the production of fuel hoses. When mixed with a fluorinated polymer such as PVDF, copolymer A acts both as a binder and as a barrier.
    Type: Grant
    Filed: May 11, 1998
    Date of Patent: August 17, 1999
    Assignee: Elt Atochem S.A.
    Inventor: Serge Lorek
  • Adhesion binders with glutarimide units
    Patent number: 5795939
    Abstract: This invention provides an adhesion binder for binding fluorinated polymers, for example PVDF, with incompatible polymers such as polyamides. The binder is a polymer A which has glutarimide, acid, anhydric and acrylate units, and is useful for the production of fuel hoses. When mixed with a fluorinated polymer such as PVDF, copolymer A acts both as a binder and as a barrier.
    Type: Grant
    Filed: August 1, 1996
    Date of Patent: August 18, 1998
    Assignee: Elf Atochem S.A.
    Inventor: Serge Lorek
  • Polyamide-based tube for a gasoline transport
    Patent number: 5419374
    Abstract: A polyamide-based tube for transporting a gasoline having resistance to permeability therethrough of the gasoline consisting essentially of an outer polyamide layer and an inner polyvinylidene fluoride layer bonded together by an adhesion binder.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: May 30, 1995
    Assignee: Elf Atochem S. A.
    Inventors: Serge Nawrot, Serge Lorek, Albert Strassel