<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31456349</termId><termName>Magna</termName><termType>PT</termType><termNote><![CDATA[ The first commercially available acrylic paint. It was prepared from pigments suspended in a solution of n-butyl methacrylate resin and solvent, developed by Leonard Bocour and Sam Golden in the mid-1940s. Magna could be diluted with turpentine or mineral spirits, had a fast drying time. and could be combined with oil paints. It dried to a hard, matte film. Manufacture of this paint ended in the 1970s. ]]></termNote><termCreatedDate>2026-03-30 21:02:50</termCreatedDate><relation><relationType>UF</relationType><termId>31456350</termId><termName>Magna Plastic Colors</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31456351</termId><termName>Magna color</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31438077</termId><termName>acrylic paint</termName><termType>PT</termType></relation></term>  </Zthes>