<?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">polyvinylidene chloride</topic></authority><related type="broader"><topic>thermoset</topic></related><variant type="other"><topic>PVDC</topic></variant><variant type="other"><topic>chloride, polyvinylidene</topic></variant> <note xml:lang="en"><![CDATA[ Synthetic resin that is produced by the polymerization of vinylidene chloride. Discovered in 1933, and developed as a flexible film primarily used as a food wrap, initially marketed as "Saran Wrap." It is used as a barrier against water, oxygen and vapor. Chemically resistant to alkalies and acids, it is insoluble in oil and organic solvents, and is impervious to mold, bacteria, and insects. ]]></note></mads>