foerfarande foer framstaellning av magnesiumkloridpartiklar med maongplanig struktur, magnesiumkloridpartiklar med maongplanig struktur, katalytkomponent buren av system partiklar och polyolefiner som erhaolls ur denna katalytkomponent

摘要

Porous MgCl2 particles existing, under the microscope, in the form of substantially regular polyhedra having ten to eighteen faces. These particles, impregnated with transition metal compound, are used as catalytic component in the polymerisation of olefins.