<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31370906</termId><termName>styrene-acrylonitrile</termName><termType>PT</termType><termNote><![CDATA[ Copolymer plastic composed of styrene and acrylonitrile that has high thermal resistance.  ]]></termNote><termCreatedDate>2026-03-30 20:40:02</termCreatedDate><relation><relationType>UF</relationType><termId>31370907</termId><termName>SAN</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31370908</termId><termName>acrylonitrile, styrene</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31340150</termId><termName>thermoplastic</termName><termType>PT</termType></relation></term>  </Zthes>