Patents by Inventor Harry M. Culbertson

Harry M. Culbertson 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).

  • High ortho etherified resole resins admixed with coreactive resins
    Patent number: 4157324
    Abstract: This invention relates to high ortho etherified resole resins. The resole resins are prepared by reacting under acidic conditions phenol with formaldehyde in the presence of a divalent electropositive metal. The resole resins are then etherified with an alcohol and dehydrated to less than 1 percent water. The novel high ortho etherified resole resins are useful in coating, bonding and adhesive compositions. Such resoles are readily curable with coreactive resins providing chemical and solvent resistance.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: June 5, 1979
    Assignee: Monsanto Company
    Inventor: Harry M. Culbertson
  • High ortho etherified resole resins
    Patent number: 4122054
    Abstract: This invention relates to high ortho etherified resole resins. The resole resins are prepared by reacting under acidic conditions phenol with formaldehyde in the presence of a divalent electropositive metal. The resole resins are then etherified with an alcohol and dehydrated to less than 1 percent water. The novel high ortho etherified resole resins are useful in coating, bonding and adhesive compositions. Such resoles are readily curable with coreactive resins providing chemical and solvent resistance.
    Type: Grant
    Filed: January 31, 1977
    Date of Patent: October 24, 1978
    Assignee: Monsanto Company
    Inventor: Harry M. Culbertson
  • High ortho etherified resole resins
    Patent number: 4120847
    Abstract: This invention relates to high ortho etherified resole resins. The resole resins are prepared by reacting under acidic conditions phenol with formaldehyde in the presence of a divalent electropositive metal. The resole resins are then etherified with an alcohol and dehydrated to less than 1 percent water. The novel high ortho etherified resole resins are useful in coating, bonding and adhesive compositions. Such resoles are readily curable with coreactive resins providing chemical and solvent resistance.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: October 17, 1978
    Assignee: Monsanto Company
    Inventor: Harry M. Culbertson
  • Process for preparing high ortho novolac resins
    Patent number: 4113700
    Abstract: The invention relates to an improved process for preparing high ortho novolac resins, said process including reacting phenol and formaldehyde in the presence of a divalent electropositive metal oxide, hydroxide or organic salt wherein the improvement comprises conducting said reaction with said catalysts in combination with a divalent electropositive metal salt selected from the group consisting of sulfonates and fluoroborates or acids selected from the group consisting of sulfonic and fluoroboric or mixtures thereof.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: September 12, 1978
    Assignee: Monsanto Company
    Inventor: Harry M. Culbertson
  • Process for preparing high ortho novolac resins
    Patent number: 4097463
    Abstract: The invention relates to an improved process for preparing very high ortho novolac resins, said process including reacting phenol and formaldehyde in the presence of a divalent electropositive metal oxide, hydroxide or salt and a strong acid or salts of said metals wherein the improvement comprises conducting said reaction under anhydrous conditions with particular divalent electropositive metal ion combinations.
    Type: Grant
    Filed: January 10, 1977
    Date of Patent: June 27, 1978
    Assignee: Monsanto Company
    Inventor: Harry M. Culbertson
  • Process of preparing fibrous sheet from high-ortho phenolic resole resin varnish
    Patent number: 4022942
    Abstract: The invention relates to high ortho phenolic resole resins and varnishes. The phenolic resole resins are produced by reacting under acidic conditions formaldehyde with a phenol in the presence of a divalent electropositive metal ion. The resulting novel resole is then dissolved in organic solvent. The solutions are useful as varnishes in the manufacture of impregnated sheets, laminates and other reinforced plastics.
    Type: Grant
    Filed: February 17, 1972
    Date of Patent: May 10, 1977
    Assignee: Monsanto Company
    Inventors: George J. Anderson, Harry M. Culbertson