Grafted polypropylene materials with a compound epoxyalkyl acrylate.

摘要

A polypropylene composition grafted with an epoxyalkyl acrylate compound of the general formula (I), wherein R is HO C1-4 alkyl, n is an integer from 1 to 6. The polypropylene composition has an index GRAFTED melt flow MFI in the range of 1 to 250 g / 10 min., and a degree of grafting 0.2% to 10% by weight, and is prepared preferably in an extruder, by (i) reacting the polypropylene composition during melting and / or in a condition molten AN ORGANIC pEROXIDE RADICAL-GENERATOR COMPOUND AS in an inert atmosphere; (II) the introduction of epoxyalkyl acrylate compound into the extruder, THROUGH A HOLE IN THE WALL CYLINDER IN A POSITION EXTRUDER Extruder polypropylene composition WHERE THE ADDED Peroxide IS IN A molten condition; (III) THE PROCESSING OF MIXTURE IN Extruder UNTIL epoxyalkyl acrylate compound has reacted with the polypropylene composition to an index grafting DESIRED, AND (IV) REFRIGERATION extrudate pelletizing.