| 摘要 |
<p>PURPOSE: To from a tubular formed article for plumbing made of a propylene resin being prevented from deterioration of the resin and improved durability when used as a plumbing tube, a joint, etc. CONSTITUTION: This tubular formed article is made of a propylene resin composition obtained by compounding a propylene resin with (A) pentaerythrityl- tetrakis[3-(3,5-di-t-butyl-4-hydroxyphenyl)propionate], (B) 1,3,5-trimethyl-2,4,6- -tris(3,5-di-tbutyl-4-hydroxybenzyl)-benzene and (C) N,N'-bis(3-aminopropyl) ethylenediamine-2,4-bis[N-butyl-N-(1,2,2,--6,6-pentamethyl-4-piperidyl )amino]-6- chloro-l,3,5- -triazine condensate in an amount of 0.05-3 pts.wt. of each of (A), (B) and (C) based on 100 pts.wt. of the propylene resin.</p> |
