Patents by Inventor Jean-Henri Blanc

Jean-Henri Blanc 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).

  • Hydrophilic modified acrylic polymers particularly hydrodispersible or hydrosoluble modified acrylic polymers and method of preparing the same
    Patent number: 4037035
    Abstract: Novel hydrophilic modified acrylic polymers, which are, in particular, hydrosoluble or hydrodispersible. These novel polymers contain, expressed in molar percentages, p % of units derived from an acrylic acid or ester, q % of units derived from an alkanolamine of said acid, r % of units derived from the alkali metal, alkaline earth metal or ammonium salt of the said acid, and s % of units derived from a vinylic monomer, p, q, r and s representing integers and being so selected that 1.ltoreq.p.ltoreq.99, O.ltoreq.q.ltoreq.96, O.ltoreq.r.ltoreq.99 and O.ltoreq.s.ltoreq.40, and the sum (p+q+r+s) is equal to 100.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: July 19, 1977
    Assignee: Societe Nationale Elf Aquitaine (Production)
    Inventors: Jean-Henri Blanc, Rene Pornin, Robert Voirin
  • Hydrophilic modified acrylic polymers particularly hydrodispersible or hydrosoluble modified acrylic polymers and method of preparing the same
    Patent number: 4025703
    Abstract: Novel hydrophilic modified acrylic polymers, particularly hydrodispersible or hydrosoluble modified acrylic polymers, containing, expressed in molar percentages, p % units derived from an acrylic acid or ester, q % units derived from an alkanolamide of said acid, r % units derived from the alkanolammonium salt of said acid, and s % units derived from a vinyl monomer, wherein p, q, r, s represent integers so selected that 1.ltoreq.p.ltoreq.95, O.ltoreq.q.ltoreq.99, O.ltoreq.r.ltoreq.99 and O.ltoreq.s.ltoreq.40, the sum (p+q+r+s) being equal to 100, and q and r never being nil simultaneously.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: May 24, 1977
    Assignee: Societe Nationale Elf Aquitaine (Production)
    Inventors: Rene Pornin, Jean-Henri Blanc, Robert Voirin