Patents Represented by Attorney Robin M. Dowling

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  • Process for converting anisoles to ortho-methylated phenolic products
    Patent number: 4381413
    Abstract: A process for converting anisoles to ortho-methylated phenolic products in high selectivity is disclosed. The process comprises passing methoxybenzene, o-methylmethoxybenzene, 2,6-dimethylmethoxybenzene, or mixtures thereof, over gamma-alumina in the presence of an effective amount of water at a temperature in the range of about 225.degree. to about 295.degree. C.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: April 26, 1983
    Assignee: Conoco Inc.
    Inventor: John R. Dodd
  • Termination of vinyl halide polymerization
    Patent number: 4361683
    Abstract: An improvement in the method of terminating the preparation of vinyl halide-containing polymers is disclosed. The improvement comprises injecting into the polymerization reactor at the desired level of conversion a free radical inhibitor obtained by the alkylation of p-methoxyphenol with nonene. The free radical inhibitor also functions as an antioxidant in the polymer product.
    Type: Grant
    Filed: May 26, 1981
    Date of Patent: November 30, 1982
    Assignee: Conoco Inc.
    Inventors: John R. Dodd, Dean R. Weimer
  • Method of transporting viscous hydrocarbons
    Patent number: 4355651
    Abstract: An improvement in the method of transporting viscous hydrocarbons through pipes is disclosed. Briefly, the improvement comprises adding water containing an effective amount of a phosphate ester of a specific block copolymer. The resulting emulsion has a lower viscosity and is more easily transported.
    Type: Grant
    Filed: August 13, 1981
    Date of Patent: October 26, 1982
    Assignee: Conoco Inc.
    Inventor: Gifford G. McClaflin