Patents by Inventor Jean-Marc Haudin

Jean-Marc Haudin 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).

  • Process for shaping solid polybut-1-ene and the resulting shaped articles
    Patent number: 4417041
    Abstract: Shaped articles of polybut-1-ene are made by preheating a polymer blank in the crystalline form II at a temperature between 20.degree. and 90.degree. C. The preheated blank is then press-forged under a pressure between 8 and 100 kgf/mm.sup.2 for a period of 1-40 seconds. During the shaping operation, the polymer is converted into the crystalline form I. Polybut-1-ene shaped articles are formed that have a melting peak, determined by differential thermal analysis, at 119.degree. C.
    Type: Grant
    Filed: January 13, 1982
    Date of Patent: November 22, 1983
    Assignee: Societe Chimique des Charbonnages-CdF Chimie
    Inventors: Andre Kepes, Eric Weynant, Pierre Avenas, Jean-Marc Haudin
  • Process for shaping solid polybut-1-ene and the resulting shaped articles
    Patent number: 4324756
    Abstract: Shaped articles of polybut-1-ene are made by preheating a polymer blank in the crystalline form II at a temperature between 20.degree. and 90.degree. C. The preheated blank is then press-forged under a pressure between 8 and 100 kgf/mm.sup.2 for a period of 1-40 seconds. During the shaping operation, the polymer is converted into the crystalline form I. Polybut-1-ene shaped articles are formed that have a melting peak, determined by differential thermal analysis, at 119.degree. C.
    Type: Grant
    Filed: October 18, 1979
    Date of Patent: April 13, 1982
    Assignee: Societe Chimique des Charbonnages-CdF CHIMIE
    Inventors: Andre Kepes, Eric Weynant, Pierre Avenas, Jean-Marc Haudin