Ineos Manufacturing Belgium Nv

Ineos Europe Limited

Innovene Manufacturing Belgium Nv

Andre Frederich

Dominique Jan

Thomas F Ameye

Brent R Walworth

Daniel Marissal

Benoit Koch

Marc Parisel

Fabian Siberdt

Yves-Julien Lambert

Luc Marie Ghislain Dheur

Jean-Jacques Kuhlburger

Alain Berardi

Anthony Sgard

Alain Van Daele

Virginie Houpert

Process for making a film or pipe by compounding an uncompounded polyolefin powder having a particle size distribution such that D95 is less than 355 &#x3bc;m and (D90&#x2212;D10)/D50 is less than 1.2, where D95, D90, D50 and D10 are defined such that 95 wt %, 90 wt %, 50 wt % or 10 wtl % of the polymer particles have a diameter of less than D95, D90, D50 and D10 respectively, to form pellets; and then forming the pellets into a film or pipe.

Polyolefin powder

Process for polymerization of ethylene using a catalyst system including (i) a solid catalyst of Ti, Mg and halogen, (ii) a first activator which is at least one trialkylaluminium compound of the formula AlR, where each R is independently a C2 to C20 alkyl radical, and (iii) a second activator which is at least one alkylaluminium chloride of the formula AlR'Cl, where each R&#x2032; is independently a C2 to C20 alkyl radical. The second activator is introduced directly into the polymerization reactor, without precontact with the solid catalyst, continuously or semi-continuously, and at a maximum rate of introduction at any time corresponding to less than 10 ppm by weight of chlorine relative to the rate of polyethylene production.

Process for polymerising ethylene

Polymerisation process in which polyethylene is produced in slurry in a polymerisation reactor in the presence of a Ziegler Natta catalyst and an activator, and a stream or slurry containing the polymer is withdrawn from the reactor and transferred to a flash tank operating at a pressure and temperature such that at least 50 mol % of the liquid or non-polymer component of the stream entering the flash tank or slurry is withdrawn from the flash tank as a vapour and at least 98 mol % of the vapour withdrawn from the flash tank is capable of being condensed at a temperature of between 15 and 50&#xb0; C., without compression. A by-product suppressor, which reduces the amount of by-product formed per unit of polyethylene produced by at least 10%, compared with an identical polymerisation process where the by-product suppressor is not present, is used in the reactor. The molar ratio of the by-product suppressor added to the reactor to titanium added to the reactor is between 0.2 and 1.

Slurry phase polymerisation process

Uncompounded polyolefin powder which is multimodal and has a particle size distribution such that D95 is less than 355 &#x3bc;m, D5 is at least 60 &#x3bc;m, and (D90&#x2212;D10)/D50 is less than 1.2, where D95, D90, D50 and D10 are defined such that 95 wt %, 90 wt %, 50 wt % and 10 wt % of the polymer particles have a diameter of less than D95, D90, D50 and D10 respectively.

Drawn tape, fiber or filament including a multimodal resin having a density of at least 940 kg/m, a melt index MIof 0.05 to 5 g/10 min, and a molecular weight distribution of the resin being less than 40.

Drawn tapes, fibre and filaments comprising a multimodal polyethylene resin

An ethylene polymer composition having a density of at least 950 kg/m, a fluidity index MIof 0.05 to 2 g/10 min and a content of alpha-olefin containing from 4 to 10 carbon atoms of from 0.15 to 1 mole %, containing from 53 to 63% by weight based on the total weight of the composition of an ethylene polymer fraction (A) having a fluidity index MIof at least 100 g/10 min a density of at least 969 kg/mand a molecular weight distribution M/Mgreater than 4, and from 37 to 47% by weight based on the total weight of the composition of a copolymer fraction (B) of ethylene and from 0.32 to 2.7 mole % of at least one alpha-olefin containing from 4 to 10 carbon atoms, a fluidity index MIto 0.001 to 0.5 g/10 min, a density of no more than 930 kg/mand a molecular weight distribution M/Mgreater than 4, wherein the ratio of the MIof fraction (A) to the MIof fraction (B) is greater than 20,000.

Growing community of inventors

Brussels, Belgium

Andre Frederich