<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31340144</termId><termName>unfilled plastic</termName><termType>PT</termType><termNote><![CDATA[ Plastic formulations that are not adulterated with fillers such as particles or fibers to increase stiffness or strength. ]]></termNote><termCreatedDate>2026-03-30 20:31:44</termCreatedDate><relation><relationType>UF</relationType><termId>31340145</termId><termName>plastic, unfilled</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31316727</termId><termName>plastic by form</termName><termType>PT</termType></relation></term>  </Zthes>