<?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">polysulfide elastomer</topic></authority><related type="broader"><topic>elastomer by composition or origin</topic></related><variant type="other"><topic>elastomer, polysulfide</topic></variant> <note xml:lang="en"><![CDATA[ Synthetic rubber formed from a salt or other compound which contains two or more sulfur atoms bonded together as an anion or group that are capable of recovering their original shape after being stretched to great extents. ]]></note></mads>