Patents by Inventor Benton Paul Webb

Benton Paul Webb 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).

  • Thermosettable resins and frictional materials made therefrom
    Patent number: 4096108
    Abstract: Superior frictional materials are formed by heating under pressure in the presence of a filler, e.g., asbestos, and a source of formaldehyde, e.g., hexamethylenetetramine, the polymers formed by reacting (1) a mixture of compounds selected from the group having the formulaR.sub.1 --A--CH.sub.2 --OCH.sub.2 --.sub.y A--.sub.x CH.sub.2 --OCH.sub.2 --.sub.y R.sub.3wherein each A is an independently selected aromatic radical having the formula ##STR1## WHEREIN EACH R.sub.1 represents an independently selected radical from the group consisting of hydrogen, --CH.sub.2 --OCH.sub.2 --.sub.y R.sub.3 ; each R.sub.2 represents an independently selected radical selected from the group consisting of R.sub.1, halogen or an alkyl group of 1 to 10 carbon atoms; R.sub.
    Type: Grant
    Filed: May 17, 1976
    Date of Patent: June 20, 1978
    Assignee: The Dow Chemical Company
    Inventors: Benton Paul Webb, Donald Louis Nelson