POLYAMIDE/POLYOLEFIN BLENDS

摘要

Blends of a polyamide and an olefin polymer such as polyethylene or polypropylene are compatibilized and toughened with a carboxylic acid (or derivative thereof) grafted olefin polymer such a s polypropylene; either alone or in combination with a carboxylic acid (or derivative thereof) grafted ethylene-propylene-diene polymer. Delamination of the surface layer of injected molded articles made from these blends is improved by keeping the melt viscosity of the polyamide low relative to the viscosity of the unmodified polyolefin and preferably the other components as well.