Patents Assigned to Texaco Inc. (parent)
  • Catalytic synthesis of linear polyethylenepolyamines (polyethylenepolyamine preparation and catalyst)
    Patent number: 4578519
    Abstract: This invention is directed to thermally activated pelletted catalyst compositions comprising titania having phosphorous derived from polyphosphoric acid deposited thereon and to their use in the production of predominatly linear polyethylenepolyamines from ethylenediamine and monoethanolamine.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: March 25, 1986
    Assignee: Texaco Inc. (Parent)
    Inventors: John M. Larken, Steven H. Vanderpool
  • Process for preparing polyol-catalyst mixtures useful in the preparation of rigid polyurethane cellular products
    Patent number: 4465791
    Abstract: Polyol-catalyst mixtures, useful in the preparation of rigid polyurethane cellular products, are prepared simultaneously by reacting a Mannich base compound, water, and an epoxide and subsequently removing the water from the reaction mixture. Also provided are new rigid polyurethane cellular products having a high content of isocyanurate linkages, superior heat distortion temperatures and improved insulating properties, which products are obtained by reacting a polyisocyanate with the aforementioned polyol-catalyst mixture.
    Type: Grant
    Filed: August 4, 1983
    Date of Patent: August 14, 1984
    Assignee: Texaco Inc. (parent)
    Inventors: Howard P. Klein, George P. Speranza