Patents Assigned to Laboratoires d'Esthetique Appliquee
  • Polysaccharide crosslinking, hydrogel preparation, resulting polysaccharide(s) and hydrogel(s), uses thereof
    Patent number: 6921819
    Abstract: The invention relates to a process for the crosslinking of polysaccharides. The process of the invention is a process for the crosslinking of at least one polymer selected from polysaccharides and their derivatives, under the action of at least one polyfunctional crosslinking agent, characterized in that said polyfunctional crosslinking agent is reacted with said polymer, in the solid state, during hydration. The invention is applied to the manufacture of hydrogels and gels that can be used, in particular, in plastic or cosmetic surgery.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: July 26, 2005
    Assignee: Laboratoires d'Esthetique Appliquee
    Inventors: Estelle Piron, Raymonde Tholin