<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">polyetherimide</topic></authority><related type="broader"><topic>thermoplastic</topic></related><variant type="other"><topic>PEI</topic></variant><variant type="other"><topic>Ultem (TM)</topic></variant><variant type="other"><topic>polyether-imide</topic></variant> <note xml:lang="en"><![CDATA[ Amorphous, high-temperature, yellowish or transparent thermoplastic developed in 1982 with a molecular weight of Tg = 215C. Characteristics include resistance to ultraviolet and gamma radiation. May be used as reinforcing fiber or as fire-resistant material in electrical components, jets, and automobiles. Resistant to aliphatic hydrocarbons, alcohols, and dilute bases. ]]></note></mads>