Patents by Inventor Larry K. Post

Larry K. Post 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).

  • Polymers derived from allylphenol or substituted allylphenol and maleic anhydride
    Patent number: 4388451
    Abstract: A copolymer formed by reacting maleic anhydride or a maleimide or a mixture of these with an allylphenol, a methallylphenol, or substituted allyl or methallylphenol. The anhydride polymers are characterized as having a 1:1 molar ratio of maleic anhydride to phenol or substituted phenol. The maleic anhydride copolymers are water soluble materials, useful as epoxy resin modifiers and curatives, as ion exchange resins or membranes, laminates, and detergent additives and builders. The maleimide containing copolymers are also useful as epoxy resin modifiers and useful in the production of laminates, composites and coatings.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: June 14, 1983
    Assignee: Ashland Oil, Inc.
    Inventors: Billy M. Culbertson, Larry K. Post, Ann E. Aulabaugh
  • Anhydride containing polymers derived from alkenyl succinic anhydride
    Patent number: 4374235
    Abstract: A novel polymer comprising the reaction product of a first vinyl monomer and a second vinyl monomer which is an alkenyl succinic anhydride having the formula: ##STR1## These polymers are useful as epoxy curatives, boiler scale removers, detergent builders, thickeners and coatings.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: February 15, 1983
    Assignee: Ashland Oil, Inc.
    Inventors: Billy M. Culbertson, Larry K. Post, Ann E. Aulabaugh
  • Pressure sensitive adhesion compositions
    Patent number: 4292231
    Abstract: Pressure-sensitive adhesives having improved cohesive strength are formed by reacting an acrylic interpolymer with a metal alkoxide or chelated metal alkoxide such as a chelated ester of orthotitanic acid. The novel feature of this invention comprises the use of an interpolymer containing a vinyl monomer which contains both a carboxylic acid and a carbamate functional group.
    Type: Grant
    Filed: February 26, 1980
    Date of Patent: September 29, 1981
    Assignee: Ashland Oil, Inc.
    Inventors: Hans R. L. Gabriel, Larry K. Post, Billy M. Culbertson, Curtis M. Graham
  • Acrylic monomers containing carbamate functionality
    Patent number: 4279833
    Abstract: Acrylic monomers containing a carbamate (urethane) functionality having the general formula: ##STR1## and difunctional carbamate monomers having the general formula: ##STR2## are prepared from 2-(1-hydroxyalkyl)-acrylates, acrylamides, acrylonitriles, vinyl ketones and nitroethylenes.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: July 21, 1981
    Assignee: Ashland Chemical Company
    Inventors: Billy M. Culbertson, Larry K. Post