| 摘要 |
PURPOSE:The titled composition capable of providing a transparent molded article having high heat resistance free from bloom and bleeding, obtained by blending polyethylene resin with a specific phenolic antioxidant and a thio antioxidant. CONSTITUTION:(A) 100pts.wt. polyethylene resin or copolymer resin consisting essentially of ethylene is blended with (B) N,N'-hexamethylenebis(3,5-di-tertiary- butyl-4-hydrocinnamamide) as a phenolic antioxidant and tetrakis-[methylene- (dodecyl)thiopropionate] as a thio antioxidant in a weight ratio of the former to the latter of 1:1-6:1 in an amount to give >=2pts.wt. total amounts, to give the aimed composition having 250 deg.C-4hr heat resistance. Heat distortion properties and chemical resistance can be further improved by crosslinking. |
