Process for preparing a polypropylene wax

Details Process for preparing a polypropylene wax Process for preparing a polypropylene wax

C - Chemistry, Metallurgy

08

F

C08F 4/654 (2006.01) C08F 10/06 (2006.01) C08F 110/06 (2006.01)

Patent

CA 2103694

Abstract of the disclosure Process for preparing a polypropylene wax Polypropylene waxes of high crystallinity and good processibility can be obtained by solution polymerization at a temperature above 110°C, if a catalyst system, which has been formed from a magnesium-alkoxy compound, a tetravalent titanium compound, a silicon compound and an aluminumorganic compound, is used in the polymerization. The polypropylene waxes prepared by the process are viscous-hard, colorless, non-tacky, heat-stable, readily grindable products having an isotacticity, determined by IR-spectroscopy, of more than 70 % and a melt viscosity of 50 to 4000 mPa.s, measured at 170°C. The waxes are suitable, for example, as base masses for pigment preparation, for an abrasion-resistant finish of printing inks, for dulling paints, as an aid in the processing of plastics, for example as lubricants and release agents, as a formulation component in photographic toners and as agents for increasing the melting point.

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