Patents by Inventor Pierre Dominique Marin

Pierre Dominique Marin 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).

  • Emulsifiable mixture of oil soluble alkylbenzene sulfonate salts having two different molecular weight maxima
    Patent number: 4140642
    Abstract: Emulsifier compositions, suitable for mixing with mineral oil to form metal working lubricants, comprise a mixture of salts of alkylaryl sulfonic acids, said acids having a molecular weight distribution with two distinct peaks, one peak being preferably in the range of 270 to 400, while the other peak is in the range of 350 to 600; which peaks differ at least 80. Mixtures of 5 to 95 wt. % sodium salts of branched chain C.sub.12 to C.sub.16 alkyl orthoxylenesulfonic acids with 95 to 5 wt. % sodium salts of branched chain C.sub.20 to C.sub.28 alkyl benzenesulfonic acids are especially preferred compositions, particularly when blended with naphthenic mineral oil, to thereby form stable emulsifiable metal working lubricants.
    Type: Grant
    Filed: January 16, 1976
    Date of Patent: February 20, 1979
    Assignee: Exxon Research & Engineering Co.
    Inventors: Jean-Paul Kistler, Pierre-Dominique Marin
  • Electrical insulating oils containing trialkyl benzenes
    Patent number: 4081393
    Abstract: Electrical oils which are blends of specified trialkyl benzenes and mineral oils have improved gas absorption and oxidation stability.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: March 28, 1978
    Assignee: Exxon Research & Engineering Co.
    Inventors: Jean-Paul Berthelot, Pierre Dominique Marin
  • Dust laying
    Patent number: 4067818
    Abstract: An aqueous dust laying formulation containing up to 2% by weight of an alkyl orthoxylene sulphonate the alkyl group containing from 8 to 11 carbons.
    Type: Grant
    Filed: January 21, 1977
    Date of Patent: January 10, 1978
    Assignee: Exxon Research and Engineering Company
    Inventor: Pierre Dominique Marin