<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31373527</termId><termName>polybutyl methacrylate</termName><termType>PT</termType><termNote><![CDATA[ Colorless liquid polymer used as a a water-repellent synthetic resin varnish and barrier coating. ]]></termNote><termCreatedDate>2026-03-30 20:40:44</termCreatedDate><relation><relationType>UF</relationType><termId>31373528</termId><termName>methacrylate, polybutyl</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31343235</termId><termName>polymers</termName><termType>PT</termType></relation></term>  </Zthes>