<?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=31436381">	<dcterms:created>2026-03-30 20:57:40</dcterms:created><PreferredTerm dc:identifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31436381" xml:lang="en">	<LexicalValue>nylon 6,6</LexicalValue>	<dcterms:created>2026-03-30 20:57:40</dcterms:created></PreferredTerm><ScopeNote xml:lang="en">  <LexicalValue><![CDATA[ A durable, dyable nylon fiber formed from hexamethylenediamine and adipic acid. Nylon 6,6 was developed at DuPont in 1935. It is very similar in structure to nylon 6, a rival product created ny I.G. Farbenindustrie four years later, and the two types of polyamide fiber remain the most commonly used by the textile and plastics industries worldwide. ]]></LexicalValue></ScopeNote><HasHierRelConcept Role="BT">http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31409823</HasHierRelConcept></ThesaurusConcept></Thesaurus>