POLYSULFONE

any of a class of resinous organic chemical compounds belonging to the family of polymers in which the main structural chain most commonly consists of benzene rings linked together by sulfonyl (-SO2-), ether (-O-), and isopropylidene (-C(CH3)2-) groups. The polysulfone resins, introduced in the 1960s, are tough, strong, stiff, and resistant to decomposition by heat or chemical attack. They retain their mechanical properties over a wide temperature range (-70 to 150 C, or about -95 to 300 F) and are used as wire coatings, for fabricating household and plumbing items, and for automotive parts.