Patents by Inventor Billy S. Jessup, Jr.

Billy S. Jessup, Jr. 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).

  • Polyester polyols from tall oil fatty acid, maleic anhydride, and aromatic polyester polyols
    Patent number: 5075417
    Abstract: Polyester polyols are prepared by reacting a multifunctional adduct (e.g., maleic anhydride (MA)) and tall oil fatty acid, (TOFA), and then esterifying/transesterifying the MA/TOFA reaction product with an excess of aromatic polyester polyols (preferably such polyols are produced from dimethyl terephthalate (DMT) process residue and polyhydric alcohols). The polyester polyols may be used in the manufacture of rigid polyurethane (PUR) and rigid urethane-modified polyisocyanurate (PUR/PIR) foams.
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: December 24, 1991
    Assignee: Cape Industries
    Inventors: John M. Trowell, Billy S. Jessup, Jr.