Patents by Inventor Harvey J. Richards

Harvey J. Richards 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).

  • Pressure sensitive adhesives
    Patent number: 6590031
    Abstract: The present invention relates to pressure sensitive adhesives based on aqueous latex emulsions processes for their preparation and laminates the prepared there from. The pressure sensitive adhesives exhibit excellent adhesion in hot water environments and resistance to water-whitening.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: July 8, 2003
    Assignee: Ashland Inc.
    Inventors: Raymond Scott Harvey, Harvey J. Richards
  • Pressure sensitive adhesives
    Publication number: 20020161109
    Abstract: The present invention relates to pressure sensitive adhesives based on aqueous latex emulsions processes for their preparation and laminates the prepared there from. The pressure sensitive adhesives exhibit excellent adhesion in hot water environments and resistance to water-whitening.
    Type: Application
    Filed: November 13, 2001
    Publication date: October 31, 2002
    Inventors: Raymond Scott Harvey, Harvey J. Richards
  • Epoxy resin, thermoplastic polymer and hardener adhesive
    Patent number: 5098505
    Abstract: An adhesive composition comprising(A) An epoxide resin component,(B) A hardener component, and incorporated in either or both/or (A) and (B) a thermoplastic polymer, mixtures thereof and application of said mixtures to substrate surfaces to adhere said surfaces together are described.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: March 24, 1992
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards, Jeffrey P. Jones
  • Convenient synthesis of polyamide polyol/urethane diol blends
    Patent number: 4822518
    Abstract: Blends of polyamide polyols and urethane diols are prepared by reacting alkyl (methyl) esters of polybasic acids (preferably dibasic acids) with excess alkanolamine (preferable ethanol amine propanol amine) to form the polyamide polyol of the polybasic acid and alkyl alcohol. The alkyl alcohol is removed and the excess ethanolamine is reacted with ethylene or propylene carbonate to form the urethane diol. This blend of urethane diol and polyamide polyol is useful in various polymer formulations.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: April 18, 1989
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Conversion of polycarboxylic acids to polyols by reaction with bicyclic amide acetals
    Patent number: 4754057
    Abstract: A process for preparing polyols from polycarboxylic acids by the reaction of a bicyclic amide acetal with a polycarboxylic acid is described.
    Type: Grant
    Filed: December 17, 1984
    Date of Patent: June 28, 1988
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Polyol/polyepoxide/polyurethane adhesive
    Patent number: 4726868
    Abstract: Fast curing adhesives which are free of solvent and have high heat resistant bonding strength composed of mixtures of polyols, polyepoxides and polyisocyanates are described.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: February 23, 1988
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards, Robert A. Grimm
  • Sag resistant two-component urethane adhesives with improved thermal stability
    Patent number: 4698408
    Abstract: An adhesive comprising a mixture of (A) a mixture of an isocyanate prepolymer and a polyepoxide which is essentially free of hydroxyl groups, and (B) a mixture of a polyol, a urethane catalyst and an epoxy curing catalyst and structures prepared by adhering substrates to one another by means of said adhesive are described.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: October 6, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Reaction of bicyclic amide acetal with sulfur
    Patent number: 4698416
    Abstract: The process for preparing novel polymers by the reaction of a bicyclic amide acetal with sulfur at a temperature in the range of from about 25.degree. C. to about 200.degree. C. is described.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: October 6, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Surface modification of inorganic fillers by treatment with bicyclic amide acetals
    Patent number: 4657815
    Abstract: The process for modifying the surface of a filler or reinforcing material comprising contacting said surface with a bicyclic amide acetal at a temperature in the range of from about 60.degree. C. to about 350.degree. C. is described.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: April 14, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Robert A. Grimm, Peggy A. Blackburn, Harvey J. Richards
  • Bicyclic amide acetals are prepared from organic nitriles and dialkanol amines at below about 140.degree. C. and product is isolated by solvent extraction
    Patent number: 4652655
    Abstract: An improved process for preparing bicyclic amide acetals from an organic nitrile and a dialkanol amine wherein the reaction temperature is maintained in the range of from room temperature to 140.degree. C., and the bicyclic amide acetal product is removed from the reaction mixture by extraction into a hydrocarbon or organic nitrile solvent prior to its purification is described.
    Type: Grant
    Filed: May 20, 1985
    Date of Patent: March 24, 1987
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Bicyclic amide acetals as moisture scavengers
    Patent number: 4627932
    Abstract: A process for removing water from its mixture with hydroxyl containing compounds by adding a bicyclic amide acetal to such mixture and allowing the water to react with the bicyclic amide acetal is disclosed.
    Type: Grant
    Filed: February 4, 1985
    Date of Patent: December 9, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Polyol/polyepoxide/polyurethane adhesive
    Patent number: 4613660
    Abstract: Fast curing adhesives which are free of solvent and have high heat resistant bonding strength composed of mixtures of polyols, polyepoxides and polyisocyanates are described.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: September 23, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards, Robert A. Grimm
  • Cross-linking of maleic anhydride polymers with bicyclic amide acetals
    Patent number: 4539376
    Abstract: The process for cross-linking maleic anhydride containing polymers by reaction with bicyclic amide acetals is described.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: September 3, 1985
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Preparation of carboxylic acid anhydrides
    Patent number: 4477382
    Abstract: The conversion of a carboxylic acid having the formula RCOOH wherein R is a hydrocarbon group having from 1 to 20 carbon atoms to its corresponding anhydride by contacting said carboxylic acid with a salt of at least one metal selected from the group consisting of palladium, cobalt, manganese, chromium, nickel, copper, rhodium, iron and thorium at a temperature in the range of from about 120.degree. to 300.degree. C. is described.
    Type: Grant
    Filed: December 21, 1982
    Date of Patent: October 16, 1984
    Assignee: Ashland Oil, Inc.
    Inventors: Anil B. Goel, Harvey J. Richards
  • Liquid-liquid extraction of Cu, Co, Ni from ammoniacal solutions with 7-ethyl-undeca-2,4-dione
    Patent number: 4205048
    Abstract: 7-Ethyl-undeca-2,4-dione as a chelation collector for the liquid-liquid extraction of transition metals from dilute ammoniacal leach solutions thereof exhibits the combination of requisite physical and dynamic properties marking an industrially attractive reagent for this purpose.
    Type: Grant
    Filed: February 8, 1979
    Date of Patent: May 27, 1980
    Assignee: Sherex Chemical Company, Inc.
    Inventors: Jai H. Kyung, Harvey J. Richards
  • 7-(Alpha-methyl-alpha-alkenyl)substituted 8-hydroxyquinolines and process for the preparation thereof
    Patent number: 4045441
    Abstract: A class of hydrocarbyl substituted 8-hydroxyquinolines wherein the indicated substituent arises through the direct alkylation of said quinolinol with a ketone obtained by condensing methyl ketone with a hindered aldehyde. These alkylates are useful metal collectors in hydrometallurgical extraction processes designed for the recovery of metal values from dilute aqueous solutions thereof.
    Type: Grant
    Filed: March 10, 1976
    Date of Patent: August 30, 1977
    Assignee: Ashland Oil, Inc.
    Inventors: Harvey J. Richards, Bhupendra C. Trivedi