Abstract: A composition comprising a polypropylene copolymer containing 0.5-7 mol % ethylene comonomer an having an MFR of 5-50 g/10 min and a relative proportion of isolated and block comonomer sequences in the polypropylene (I(E)) in the range of 5-40 is disclosed, wherein I(E) is defined as I(E)=fPEP/((fEEE+fPEE+fPEP))*100 in which I(E) is the relative content of isolated to block ethylene sequences (in %); fPEP is the mol fraction of propylene/ethylene/propylene sequences (PEP) in the sample; fPEE is the mol fraction of propylene/ethylene/ethylene sequences (PEE) and of ethylene/ethylene/propylene sequences (EEP) in the sample; and fEEE is the mol fraction of ethylene/ethylene/ethylene sequences (EEE) in the sample, all sequence concentrations being based on a statistical triad analysis of 13C-NMR data. The composition preferably comprises a blend of a propylene homopolymer and a propylene-ethylene copolymer, and the propylene-ethylene copolymer is preferably a polypropylene post-consumer resin (PCR).

Abstract: Injection molded article made from a composition containing 81-88 wt % of a propylene homopolymer (A) having a melt flow rate of between 1 and 2 g/10 min, 12-19 wt % of a propylene-ethylene copolymer (B) containing 45-65 wt % of ethylene, and 50-10000 ppm by weight of a nucleating agent. The total ethylene content of the composition is 6-10 wt %, and the melt flow rate (MFR) of the composition is 0.7-2 g/10 min.

Abstract: Propylene random copolymer composition containing (A) 60-80 wt % of a copolymer of propylene and from 0.1 to 2 wt % of units derived from ethylene; and (B) 20-40 wt % of a copolymer of propylene and from 7 to 15 wt % of units derived from ethylene. The composition has a total ethylene content of from 3 to 4.5 wt % and a melt flow rate value according to ISO 1133 (230° C., 2.16 kg) of from 10 to 120 g/100 min. Cast films, sheets, or injection molded or injection stretch blow molded articles made from the above composition are also disclosed.

Abstract: An injection moulded article is disclosed, which is made from a composition comprising: 81-88 wt % of a propylene homopolymer (A) having a melt flow rate of between 1 and 2 g/10 min; 12-19 wt % of a propylene-ethylene copolymer (B) containing 45-65 wt % of ethylene; and 50-10000 ppm by weight of a nucleating agent, wherein the total ethylene content of the composition is 6-10 wt %, and the melt flow rate (MFR) of the composition is 0.7-2 g/10 min.

Abstract: A propylene random copolymer composition is disclosed, comprising (A) 60-80 wt % of a copolymer of propylene and from 0.1 to 2 wt % of units derived from ethylene; and (B) 20-40 wt % of a copolymer of propylene and from 7 to 15 wt % of units derived from ethylene, said composition having a total ethylene content of from 3 to 4.5 wt % and a melt flow rate value according to ISO 1133 (230° C., 2.16 kg) of from 10 to 120 g/100 min. Cast films, sheets, or injection moulded or injection stretch blow moulded articles made from the above composition are also disclosed.

Abstract: Catalyst systems comprising, on the one hand, a catalytic solid based on complexed titanium trichloride and, on the other hand, a nonhalogenated organoaluminium activator. When employed in gas phase olefin polymerisation processes, these catalyst systems make it possible to manufacture a wide range of homopolymers and copolymers (random and block) with an isotacticity index which can be adjusted to very low values and with excellent pourability, even in the case of copolymers of high comonomer content. In the absence of transfer agents they also make it possible to synthesize polymers of very high molecular masses, with an increased activity. These polymerization processes yield particularly advantageous results in the case of propylene.

Abstract: Catalyst systems comprising, on the one hand, a catalytic solid based on complexed titanium trichloride and, on the other hand, a nonhalogenated organoaluminium activator. When employed in gas phase olefin polymerization processes, these catalyst systems make it possible to manufacture a wide range of homopolymers and copolymers (random and block) with an isotacticity index which can be adjusted to very low values and with excellent pourability, even in the case of copolymers of high comonomer content. In the absence of transfer agents they also make it possible to synthesize polymers of very high molecular masses, with an increased activity. These polymerization processes yield particularly advantageous results in the case of propylene.