| abstract |
The procatalyst for the production of ethylene polymers contains inorganic substances, a chlorine compound deposited on the support, a compound of the coating applied to it, a titanium compound deposited on the support, and a chlorine compound different from or the same as a magnesium compound and / or a titanium compound. The active equations ha AB under the specified polymer conditions are AB> 3.2 where AB = | (A + A '): 2 | log (MFR.sub.2.n: MFR.sub.2. n.): (A-A ') |, A is a polymer n activity determined as kg PE / g cat h, MFR.sub.2. means the melt flow rate in units g / min at 2.16 kg according to ISO 1133, the absence of an upper index means the polymerization of p ° in and m at the melt flow rate and the presence of the upper index means the polymerization of p ° i high melt flow rate. This means that the catalyst activity is relatively unrelated to the presence of transmission. |