<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31343397</termId><termName>coupling agents</termName><termType>PT</termType><termNote><![CDATA[ Compounds that provide a chemical bond between two dissimilar materials, usually an inorganic and an organic material. ]]></termNote><termCreatedDate>2026-03-30 20:32:37</termCreatedDate><relation><relationType>UF</relationType><termId>31343398</termId><termName>agents, coupling</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343399</termId><termName>coupling agent</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31319736</termId><termName>compounds</termName><termType>PT</termType></relation></term>  </Zthes>