| 摘要 |
<p>PURPOSE:To obtain a resin havig improved transparency, nesistance to stress-cracking and chemicals and heat, by irradiating 4-methyl-1-pentene polymer. CONSTITUTION:4-Methyl-1-pentene polymer (TPX), preferably its final molded article, is exposed to high-energy irradiation, preferably gamma-rays of several to 10M rad, in a vacuum or the atmosphere of an inert gas. preferably, a homo-or copolymer with a 5-18C 1-olefin or a copolymer prepared by grafting a vinyl monomer onto the polymer may be used as TPX.</p> |
