Material for food packaging and method for the preparation thereof
Abstract
A food packaging material comprises a polyolefin, vitamin E, and a Quebracho wood ext. comprising condensed tannins, the material comprising at least 0.1% by wt. of condensed tannins relative to the wt. of the food packaging material. A typical material is prepd. by extruding at 160° a compn. contg. 97.5 wt.% isotactic polypropylene PP 1014, 2.375 wt.% Vitamin E and 0.125 wt.% a Quebracho wood ext. contg. 85 wt.% tannins.