ALEXANDRIA, Va., July 23 -- United States Patent no. 12,365,793, issued on July 22, was assigned to Arkema Inc. (King of Prussia, Pa.).
"Functionalized process aid blends for cellular PVC" was invented by Kevin R. Yocca (King of Prussia, Pa.) and Eric J. Peterson (King of Prussia, Pa.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of reducing foamed density that results in a foamed polyvinyl chloride (PVC) component exhibiting reduced density. The foamed PVC component contains at least a PVC resin and a process aid blend. The process aid blend contains from 1 weight % to 60 weight % (based on the weight of the blend) of a functionalized process aid, and from 99 weight % to 40 weight % (based on the ...