<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>14084030</termId><termName>polietileno</termName><termType>PT</termType><termNote><![CDATA[ Grupo de polímeros poliolefinos derivados del etileno por polimerización bajo calor y presión. ]]></termNote><termCreatedDate>2026-03-30 20:40:02</termCreatedDate><relation><relationType>BT</relationType><termId>14070265</termId><termName>termoplástico</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>14085105</termId><termName>polyolefin (traducció pendent)</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>14101349</termId><termName>ethylene-vinil acetate</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>14070251</termId><termName>polyethylene foam (traducció pendent)</termName><termType>PT</termType></relation></term>  </Zthes>