ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,224, issued on April 22, was assigned to DUPONT POLYMERS INC. (Wilmington, Del.).
"Fluoroelastomer compounds" was invented by Christopher J. Bish (Kennett Square, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention is directed to perfluoroelastomer compounds comprising carbon black having a particle size of 100 nm or greater; a mineral filler selected from the group consisting of titanium dioxide, barium sulfate, or a combination of these; a cure site monomer; and a curing agent. These perfluoroelastomer compounds, when cured into articles, exhibit desirable compression stress relaxation properties."
The patent was filed on Aug....