Patents by Inventor Dan C. Tate

Dan C. Tate 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).

  • Sulfur-free acidulation of tall oil soap
    Patent number: 4256628
    Abstract: Tall oil soap is subjected to a sulfur-free acidulation by contacting the soap with boron trifluoride or a complex thereof, which effectively converts the soap into tall-oil without the necessity of a conventional acidification. The contacting can be carried out in any convenient fashion with an amount of boron trifluoride or complex, preferably in a range of about 20-24% based on the weight of the crude tall-oil soap.
    Type: Grant
    Filed: January 17, 1980
    Date of Patent: March 17, 1981
    Assignee: Champion International Corporation
    Inventor: Dan C. Tate
  • Waterproofing composition and method of making the same
    Patent number: 4256491
    Abstract: A waterproofing composition is made by admixing primary sludge produced by pulp and paper mill operations with tall oil pitch. The composition may include particulate wood by-products as fillers and a material such as lime for raising the softening point of the tall oil pitch.
    Type: Grant
    Filed: March 14, 1979
    Date of Patent: March 17, 1981
    Assignee: Champion International Corporation
    Inventor: Dan C. Tate
  • Light weight aggregate and method for making same
    Patent number: 4120738
    Abstract: A light weight aggregate is described which is formed of fly ash and solids derived from the caustic extract filtrate produced in a kraft pulping process. In a method for producing the light weight aggregate caustic extract filtrate produced in a kraft pulping process is concentrated to a desired level. The concentrated filtrate is then mixed with water and fly ash to produce a green agglomerate which is extruded into discrete pellets. The pellets are then burned to produce a light weight high strength aggregate.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: October 17, 1978
    Assignee: Champion International Corporation
    Inventor: Dan C. Tate