US Patent Issued to SHPP GLOBAL TECHNOLOGIES on Aug. 26 for "Methods for making sulfonated poly(phenylene ether) and articles made therefrom" (Indian Inventors)

ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,398,238, issued on Aug. 26, was assigned to SHPP GLOBAL TECHNOLOGIES B.V. (Bergen op Zoom, Netherlands).

"Methods for making sulfonated poly(phenylene ether) and articles made therefrom" was invented by Rajesh Chowdhury (Bangalore, India) and Senthil Tk (Bangalore, India).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for sulfonation of poly(phenylene ether) can comprise: dissolving a poly(phenylene ether) comprising 2,6-dimethyl-1,4-phenylene ether units, 2,3,6-trimethyl-1,4-phenylene ether units, 3,3',5,5'-tetramethyl-4,4'-dihydroxybiphenyl ether units, or a combination thereof in a mixture of 1,2-dichloroethane and a cosolvent to form a solve...