US Patent Issued to ExxonMobil Engineering & Technology on March 18 for "Isobutylene-containing compositions and articles made thereof" (Texas Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,252,563, issued on March 18, was assigned to ExxonMobil Engineering & Technology Co. (Baytown, Texas).

"Isobutylene-containing compositions and articles made thereof" was invented by Sunny Jacob (Seabrook, Texas), Sujith Nair (League City, Texas) and Yuan-Ju Chen (Houston).

According to the abstract* released by the U.S. Patent & Trademark Office: "An elastomer composition can comprise a C4 to C7 isoolefin; a non-halogenated alkylstyrene; a halogenated alkylstyrene; and optionally a diolefin, wherein the C4 to C7 isoolefin is not the same as the diolefin. Optionally, the elastomer composition can be blended with a butyl rubber and/or a halobutyl rubber. Such blends that also compris...