Patents by Inventor Harold E. De La Mare

Harold E. De La Mare 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).

  • Calcium sulfonate or calcium hydrocarbyl sulfate accelerator for amine cure of epoxy resins
    Patent number: 5442035
    Abstract: Cure of an epoxy resin by an aliphatic amine is accelerated by a calcium sulfonate or calcium hydrocarbyl sulfate salt. The calcium salt is preferably a salt of a detergent-range sulfonic acid or hydrocarbyl sulfuric acid which is soluble in either the amine or the epoxy resin.
    Type: Grant
    Filed: September 29, 1993
    Date of Patent: August 15, 1995
    Assignee: Shell Oil Company
    Inventors: Larry S. Corley, Harold E. De La Mare
  • Curable epoxy compositions suitable for use in RIM processes
    Patent number: 4397998
    Abstract: The present invention provides a rapid curing epoxy composition, suitable for RIM processes, which exhibits unexpectedly high modulus and strength and stability which comprises(1) an epoxy resin,(2) a polyamine or polyamide,(3) a catalyst selected from the group consisting of alkali and alkaline earth metal salts of selected acids, and(4) a polyalkylene ether glycol.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: August 9, 1983
    Assignee: Shell Oil Company
    Inventors: Harold E. De La Mare, Thomas F. Brownscombe
  • Curable polyepoxide-unsaturated monomer compositions suitable for use in rim processes
    Patent number: 4389515
    Abstract: The present invention provides a rapid curing epoxy composition suitable for RIM processes which exhibits unexpectedly good physical properties which comprises (1) an epoxy resin, (2) at least one ethylenically unsaturated monomer, (3) a polyamine or polyamide, (4) a catalyst selected from Group I or Group II metal salts, and (5) a polyalkylene ether glycol.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: June 21, 1983
    Assignee: Shell Oil Company
    Inventors: Harold E. De La Mare, Thomas F. Brownscombe
  • Curable epoxy-vinyl ester compositions
    Patent number: 4359370
    Abstract: Partial vinyl-epoxy ester compositions are disclosed which can be cured by a dual path comprising exposure to UV radiation followed by a post thermal treatment. Simply, the partial esters contain from about 1 to 10 parts per hundred parts by weight of ester of a catalyst compound such as tertiary amines and imidazole compounds, salts and adducts thereof.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: November 16, 1982
    Assignee: Shell Oil Company
    Inventors: Harold E. De La Mare, Paul D. Jones
  • Polybutadiene resin
    Patent number: 3974129
    Abstract: A curable resin composition is prepared by first reacting a low molecular weight polybutadiene resin with a polycarboxylic acid anhydride of the general formula ##EQU1## and then reacting the resulting resin with a hydroxyalkyl acrylate of the general formula ##EQU2## Also disclosed are the cured resin compositions.
    Type: Grant
    Filed: July 24, 1975
    Date of Patent: August 10, 1976
    Assignee: Shell Oil Company
    Inventor: Harold E. De La Mare
  • Sequential hydrogenation-oxidation-hydrogenation of rhodium and ruthenium catalysts
    Patent number: 3966636
    Abstract: A process for the regeneration of a catalyst containing a metal of the group consisting of rhodium and ruthenium employed in the hydrogenation of an organic compound possessing at least one carbon-to-carbon bond unsaturation in the presence of a methylene dichloride solvent is taught whereby the catalyst is regenerated after deactivation by contacting the deactivated catalyst first with a hydrogen-containing gas then with an oxygen-containing gas and finally with a hydrogen-containing gas.
    Type: Grant
    Filed: December 19, 1974
    Date of Patent: June 29, 1976
    Assignee: Shell Oil Company
    Inventors: John W. Jenkins, Ronald S. Bauer, Harold E. De La Mare