POLYPROPYLEN WAX AND PROCESS FOR PREPARING THE SAME

摘要

Copolymerisation of propylene with small amounts of other olefins in the presence of a catalyst comprising a metallocene of the formula I …… and an aluminoxane gives a polyolefin wax in high yield. The wax is formed as compact spherical particles having a narrow particle size distribution and high bulk density. In addition, the physical data of this wax, for example the hardness, melting point, melt viscosity, etc., are variable within broad limits. …The polymer chains have a similar and uniform structure, and the comonomer units are arranged predominantly individually between polypropylene blocks.