Patents Assigned to Societe de Conseils de Recherches et d'Applicatios Scientifiques (S.C.R.A.S.)
  • Process for preparing polynucleotides
    Patent number: 4927755
    Abstract: This invention relates to a process of preparation of nucleotide polymers wherein a lysate of a bacterial culture is passed successively through three columns (ion exchange resin, hydrophobic resin and molecular sieve), whereby there is obtained a substantially pure polynucleotidephosphorylase solution.Polymerization of this agent leads to non toxic and non pyrogen products.This invention relates also to products thus obtained and to therapeutic compositions containing the same.
    Type: Grant
    Filed: November 1, 1988
    Date of Patent: May 22, 1990
    Assignee: Societe de Conseils de Recherches et d'Applicatios Scientifiques (S.C.R.A.S.)
    Inventors: Chabrier De Lassauniere, Acaye S. Colote