<?xml version="1.0" encoding="utf-8"?><Thesaurus
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	xsi:schemaLocation="http://schemas.bs8723.org/XmlSchema/DD8723-5.xsd">	 <dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en</dc:identifier>  <dc:title>Tesaurus d&apos;Art i Arquitectura</dc:title>  <dc:creator>Getty Institute</dc:creator>  <dc:subject></dc:subject>  <dc:description><![CDATA[  ]]></dc:description>  <dc:publisher>Getty Institute</dc:publisher>  <dc:date>0000-00-00</dc:date>  <dc:language>en</dc:language><ThesaurusConcept dc:identifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31299325">	<dcterms:created>2026-03-30 20:20:18</dcterms:created><PreferredTerm dc:identifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31299325" xml:lang="en">	<LexicalValue>Teflon (TM)</LexicalValue>	<dcterms:created>2026-03-30 20:20:18</dcterms:created></PreferredTerm><ScopeNote xml:lang="en">  <LexicalValue><![CDATA[ A trademarked name for polytetrafluoroethyelene (PTFE) which was discovered by Roy Plunkett 1938 and first marketed as Teflon (TM) by DuPont in 1943. This fluorinated polymer is known for its resistance to adhesion, heat, oxidation, light, and chemicals. It is used chiefly for molding articles and for nonstick cookware. ]]></LexicalValue></ScopeNote><HasHierRelConcept Role="BT">http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31297611</HasHierRelConcept><HasRelatedConcept Role="RT">http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31373525</HasRelatedConcept></ThesaurusConcept></Thesaurus>