Patents by Inventor Jean-Paul Thiersault

Jean-Paul Thiersault 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 the treatment of linear low density polyethylene by organic peroxides which generate free radicals
    Patent number: 4460750
    Abstract: The invention relates to a process of thermomechanical treatment in the molten state, in the presence of organic peroxides, of co-polymers with a density less than 0.935, obtained by co-polymerization under a pressure of less than 4 MP.sub.a of ethylene and a higher alpha-olefin. The co-polymers thus treated may advantageously be used for the manufacture of finished objects such as films according to the current techniques of conversion of "high pressure" type polyethylene.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: July 17, 1984
    Assignee: BP Chimie S.A.
    Inventors: Jean-Paul Thiersault, Alain Senez, Jean L. Vidal
  • Process for the treatment of linear low density polyethylene by organic peroxides which generate free radicals
    Patent number: RE33269
    Abstract: The invention relates to a process of thermomechanical treatment in the molten state, in the presence of organic peroxides, of co-polymers with a density less than 0.935, obtained by co-polymerization under a pressure of less than 4 MP.sub.a of ethylene and a higher alpha-olefin. The co-polymers thus treated may advantageously be used for the manufacture of finished objects such as films according to the current techniques of conversion of "high pressure" type polyethylene.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: July 17, 1990
    Assignee: The British Petroleum Company p.l.c.
    Inventors: Jean-Paul Thiersault, Alain Senez, Jean L. Vidal