Patents by Inventor David C. Fondots

David C. Fondots 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).

  • Stabilization of flame retardant premix for polyurethane
    Patent number: 4225453
    Abstract: The storage stability of otherwise unstable premix compositions for flame retardant rigid polyurethane foams containing in the premix a chlorinated polyether polyol and a tertiary amine catalyst, is enhanced by incorporation into the premix a synergistic combination of an organic sulfur compound and an unsaturated carbon compound. The preferred sulfur compound is thiourea; among the preferred unsaturated carbon compounds are unsaturated terpenes such as allo-ocimene and unsaturated higher fatty acids such as tall oil fatty acids and mono-, di-, and trienic C.sub.18 acids.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: September 30, 1980
    Assignee: Air Products and Chemicals, Inc.
    Inventors: Harry V. DePaul, David C. Fondots, Rocco L. Mascioli, John R. Panchak