Patents by Inventor Sandra Einloft

Sandra Einloft 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 PRODUCING BIOPOLYMER MEMBRANES AND BIOPOLYMER MEMBRANES PRODUCED BY THIS PROCESS
    Publication number: 20120123032
    Abstract: The present invention describes the process of producing biopolymeric membranes and the membranes obtained by this process. Particularly, the biopolymeric membranes of the present invention comprise poly(urethane-caprolactone) and can be used for nerve and bone regeneration.
    Type: Application
    Filed: July 30, 2010
    Publication date: May 17, 2012
    Applicants: A.S. Technology Componetes Especiais, Uniao Brasileira de Educacao e Assistencia - Mantenedora da PUC RS
    Inventors: Rosane Angelica Ligabue, Sandra Einloft, Jefferson Braga da Silva, Tassiani Poltronieri, Jeane Estela de Lima Dullius, Christian Viezzer, Denise Cantarelli, Vanusca Dalosto Janho
  • Catalytic process for the dimerization of olefins
    Patent number: 5550306
    Abstract: The invention is concerned with a process for the dimerization, co-dimerization and oligomerization of olefins with a catalytic composition resulting from mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminum halide, at least one aromatic hydrocarbon and optionally an aluminium organometallic compound.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: August 27, 1996
    Assignee: Institut Francais du Petrole
    Inventors: Yves Chauvin, Sandra Einloft, Helene Olivier
  • Nickel-containing composition for catalysis and olefin dimerisation and oligomerisation process
    Patent number: 5550304
    Abstract: The invention concerns a catalytic composition and a process for the dimerisation, codimerisation or oligomerisation of olefins, said composition comprising a mixture of at least one bivalent nickel complex which contains two tertiary phosphine molecules, at least one nickel complex which contains neither water nor phosphine, and at least one alkylaluminium halide. The mixture is particularly for use in ionic type non aqueous liquid compositions, such as those formed by quaternary ammonium halides and/or quaternary phosphonium halides with aluminium halides and/or alkylaluminium halides.
    Type: Grant
    Filed: May 26, 1995
    Date of Patent: August 27, 1996
    Assignee: Institut Francais Du Petrole
    Inventors: Yves Chauvin, Sandra Einloft, Helene Olivier
  • Catalytic composition and a process for the dimerization of olefins
    Patent number: 5536689
    Abstract: The invention is concerned with a catalytic composition resulting from dissolving a nickel complex mixed or complexed with a tertiary phosphine in the medium resulting from mixing at least one quaternary ammonium halide and/or at least one quaternary phosphonium halide, at least one aluminum halide, at least one aromatic hydrocarbon and optionally an aluminum organometallic compound. The invention is also concerned with a process for the dimerization, codimerization and oligomerization of olefins with this composition.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: July 16, 1996
    Assignee: Institut Francais du Petrole
    Inventors: Yves Chauvin, Sandra Einloft, Helene Olivier
  • Nickel-containing composition for catalysis and olefin dimerisation and oligomerisation process
    Patent number: 5502018
    Abstract: The invention concerns a catalytic composition and a process for the dimerization, codimerization or oligomerization of olefins, said composition comprising a mixture of at least one bivalent nickel complex which contains two tertiary phosphine molecules, at least one nickel compound or complex compound which contains neither water nor phosphine, and at least one alkylaluminum halide. The mixture is particularly for use in ionic type non aqueous liquid compositions, such as those formed by quaternary ammonium halides and/or quaternary phosphonium halides with aluminum halides and/or alkylaluminum halides.
    Type: Grant
    Filed: September 21, 1994
    Date of Patent: March 26, 1996
    Assignee: Institut Francais du Petrole
    Inventors: Yves Chauvin, Sandra Einloft, Helene Olivier