Patents by Inventor Michel Mercadier

Michel Mercadier 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).

  • Cosmetological polymers
    Patent number: 4535130
    Abstract: Novel organic polymers have a chain carrying active groups, a hydroxyl, alkoxy, halogen, thiol or sulphide group or a second active group being attached as a substituent to a carbon which is in the alpha position with respect to that carrying the first active group. The preparation of these polymers is advantageously effected using polymers carrying epoxide bridges, which are opened by the action of an active cosmetological or other active compound. These polymers are particularly suitable for the protection of the skin against solar radiation, as creams or gels for the skin and for the hair and/or as pigments.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: August 13, 1985
    Assignee: Societe Nationale Elf Aquitaine (Production)
    Inventors: Claude Favie, Michel Mercadier
  • Method of preparing cosmetological polymers
    Patent number: 4435545
    Abstract: Novel organic polymers have a chain carrying active groups, a hydroxyl, alkoxy, halogen, thiol or sulphide group or a second active group being attached as a substituent to a carbon which is in the alpha position with respect to that carrying the first active group. The preparation of these polymers is advantageously effected using polymers carrying epoxide bridges, which are opened by the action of an active cosmetological or other active compound. These polymers are particularly suitable for the protection of the skin against solar radiation, as creams or gels for the skin and for the hair and/or as pigments.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: March 6, 1984
    Assignee: Societe Nationale Elf Aquitaine (Production)
    Inventors: Claude Favie, Michel Mercadier