Patents by Inventor Kenneth W. Barnett

Kenneth W. Barnett 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).

  • Polyurethane-forming binder systems containing 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivatives
    Patent number: 5447968
    Abstract: This invention relates to polyurethane-forming foundry binder systems which contain a nitrogen-containing aromatic compound selected from the group consisting of 2,2'-dipyridyl, 1,10-phenanthroline, and their substituted alkyl derivatives. The foundry binder systems are particularly useful for making foundry mixes used in the cold-box fabrication process for making foundry shapes. However, the binders systems can also be used to hold foundry shapes, such as molds and cores, together in an assembly.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: September 5, 1995
    Assignee: Ashland Inc.
    Inventors: Kenneth W. Barnett, William G. Carpenter, William R. Dunnavant, Robert B. Fechter
  • Foundry mixes based upon reclaimed sand
    Patent number: 5376696
    Abstract: The subject invention relates to foundry mixes comprised of (a) an aqueous basic solution of a phenolic resole resin; (b) a major amount of reclaimed sand which has first been treated with an aqueous non halogenated surfactant solution, and (c) a liquid ester co-reactant.The invention also relates to foundry shapes made with the subject foundry mixes which have improved tensile strengths and scratch hardness when compared to foundry shapes which are prepared from foundry binder systems which do not utilize foundry aggregates which have been mixed with an aqueous surfactant solution.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: December 27, 1994
    Assignee: Ashland Oil, Inc.
    Inventors: William R. Dunnavant, Kenneth W. Barnett, Gary R. Hysell
  • Formation of hydroxy aryl carboxylic acids and esters
    Patent number: 4827845
    Abstract: Hydroxy aryl carboxylic acids are formed by reacting a hydroxy aryl compound, such as phenol, with a ketone, such as acetone and carbon monoxide in the presence of a strong acid. The preferred embodiment is the one step formation of 2-methyl-2-(p-hydroxyphenyl) propionic acid from phenol, acetone and carbon monoxide in the presence of hydrofluoric acid. When this reaction is conducted in the presence of methanol the corresponding methyl ester is formed.
    Type: Grant
    Filed: September 23, 1987
    Date of Patent: May 9, 1989
    Assignee: Ashland Oil, Inc.
    Inventors: Dace Grote, William L. Embry, Kenneth W. Barnett
  • Bis(1,5-cyclooctadiene)Ni(O) catalyst and process for oligomerization of ethylene
    Patent number: 4628139
    Abstract: An improved heterogeneous catalyst effective to catalyze the oligomerization of ethylene is formed be depositing a bis(1,5-cyclooctadiene)Ni(O) compound onto an omega zeolite or type Y zeolite support. The catalyst is used to oligomerize olefins. The catalyst is particularly effective in terms of selectivity and reactivity in catalyzing the formation of 1-butene from ethylene.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: December 9, 1986
    Assignee: Ashland Oil, Inc.
    Inventor: Kenneth W. Barnett
  • Catalyst and process for oligomerization of ethylene
    Patent number: 4628138
    Abstract: An improved heterogeneous catalyst effective to catalyze the oligomerization of ethylene is formed by hydrogenating bis(.eta..sup.5 -cyclopentadienyl) nickel (nickelocene) onto an omega zeolite support in the presence of a small, but effective amount of a promoter. The promoters are oxides of nickel, iron or copper and mixtures thereof. The catalyst is particularly effective in terms of selectivity and reactivity in catalyzing the formation of 1-butene from ethylene.
    Type: Grant
    Filed: September 20, 1985
    Date of Patent: December 9, 1986
    Assignee: Ashland Oil, Inc.
    Inventors: Kenneth W. Barnett, Mary J. Brown
  • Method of regeneration of an iron phosphate-type catalyst
    Patent number: 4359401
    Abstract: A method of regenerating an iron/phosphate-type catalyst typically used for the oxydehydrogenation of lower molecular weight carboncylic acids comprising the step of subjecting the catalyst to an oxidizing atmosphere, preferably by discontinuing the flow of organic feed through the catalyst bed, followed by the step of subjecting the catalyst to a reducing atmosphere, preferably injecting organic feed in the absence of oxygen over the catalyst. The method is specifically described with respect to the production of methacrylic acid by the oxydehydrogenation of isobutyric acid.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: November 16, 1982
    Assignee: Ashland Oil, Inc.
    Inventor: Kenneth W. Barnett