<?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">urethane elastomer</topic></authority><related type="broader"><topic>elastomer by composition or origin</topic></related><variant type="other"><topic>elastomer, urethane</topic></variant> <note xml:lang="en"><![CDATA[ Copolymers of diisocyanate with polyester or polyether. Urethane is the strongest available elastomer, and has good abrasion resistance. Applications include parts requiring high wear resistance, such as wheels, heels, and bumpers. ]]></note></mads>