Patents by Inventor Alexandre Zysman

Alexandre Zysman 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).

  • Crosslinked polyamino-polyamide in hair conditioning compositions
    Patent number: 4189468
    Abstract: A cosmetic composition for the hair comprises at least one water-soluble crosslinked polymer obtained by crosslinking a polyamino-polyamide with a crosslinking agent, said polyamino-polyamide being prepared by the polycondensation of (a) an acidic compound selected from the group consisting of (i) organic dicarboxylic acid, (ii) ethylenically unsaturated aliphatic mono- or di-carboxylic acid, (iii) ester of said acids of (i) and (ii), and (iv) mixtures of (i), (ii) and (iii) on (b) a polyamine selected from the group consisting of bis-primary and mono- or bis-secondary polyalkylene polyamines, said polyamine (b) being replaceable by a member selected from the group consisting of (1) 0-20 mole percent hexamethylene diamine, (2) 0-40 mole percent bis-primary amine and (3) 0-40 mole percent bis-secondary amine, said crosslinking agent being selected from the group consisting of (a') simple bi-functional compounds selected from bis-halohydrins, bis-azetidinium, bis-haloacyl diamine and alkyl bis-halides, (b') oli
    Type: Grant
    Filed: February 27, 1978
    Date of Patent: February 19, 1980
    Assignee: L'Oreal
    Inventors: Guy Vanlerberghe, Henri Sebag, Jean-Francois Grollier, Alexandre Zysman
  • Hair conditioning compositions containing crosslinked polyaminopolyamides
    Patent number: 4172887
    Abstract: A cosmetic composition for the hair comprises at least one water-soluble crosslinked polymer selected from the group consisting of (1) crosslinked polymer obtained by crosslinking a polyamino-polyamide with a crosslinking agent, said polyamino-polyamide being prepared by the polycondensation of (a) an acidic compound selected from the group consisting of (i) organic dicarboxylic acid, (ii) ethylenically unsaturated aliphatic mono- or di- carboxylic acid, (iii) ester of said acids of (i) and (ii), and (iv) mixtures of (i), (ii) and (iii) on (b) a polyamine selected from the group consisting of bis primary and mono- or bis-secondary polyalkylene polyamines, said polyamine (b) being replaceable by a member selected from the group consisting of (1) 0-20 mole percent hexamethylene diamine, (2) 0-40 mole percent bis-primary amine and (3) 0-40 mole percent bis-secondary amine, said crosslinking agent being selected from the group consisting of epihalohydrins, diepoxides, dianhydrides and bis unsaturated derivatives,
    Type: Grant
    Filed: January 26, 1977
    Date of Patent: October 30, 1979
    Assignee: L'Oreal
    Inventors: Guy Vanlerberghe, Henri Sebag, Jean-Francois Grollier, Alexandre Zysman