AN IMPROVED PROCESS FOR THE PREPARATION OF A POLY PROPYLENE MOULDING COMPOUND HAVING HIGH IMPACT AND HIGH TENSILE STRENTH

摘要

This invention relates to an improved process for the preparation of a polypropylene moulding compound having high impact and high tensile strength. The prior art for the preparation of polypropylene compound having high impact strength consists of either copolymerization or blending with rubbery polymers. The use of modified additives has also been mentioned. However, the process of improving the impact strength almost invariably leads to decrease of tensile strength. Thus there is no prior art for preparation of polypropylene moulding compound having high impact strength as well as high tensile strength. The polypropylene moulding compound prepared according to the process described in the present invention, both the impact strength as well as the tensile strength are higher than that obtained in pure unmodified polypropylene compound.