Abstract: Process for the production of a catalyst system including 1) providing a solution I—wherein solution I includes a hydrocarbon solution including the reaction product of a) a magnesium-containing compound selected from an organic oxygen-containing magnesium compound and/or a halogen-containing magnesium compound; and b) an organic oxygen-containing titanium compound wherein the molar ratio of magnesium: titanium is lower than 3:1; 2) providing a solution II—wherein solution II includes a hydrocarbon solution including—an organo aluminium halide having the formula AlRnX3-n in which R is a hydrocarbon moiety containing 1-10 carbon atoms, X is a halogen and 0<n<3; 3) selecting a value Y the range from 1-12, wherein Y is defined as the molar ratio of aluminium of solution II to titanium of solution I, 4) dosing solution I and II to a receiving means in a time t from ?t1 to <tend.

Abstract: Catalyst system for the production of polyethylene comprising: I) the reaction product obtained by reacting, preferably in a reactor vessel a) a hydrocarbon solution comprising: i) a magnesium-containing compound selected from an organic oxygen-containing magnesium compound and/or a halogen-containing magnesium compound; and ii) an organic oxygen-containing titanium compound wherein the molar ratio of magnesium:titanium is lower than 3:1; and b) an organo aluminium halide having the formula AlRnX3-n in which R is a hydrocarbon moiety containing 1-10 carbon atoms, X is a halogen and 0<n<3; wherein the molar ratio of supplied organo aluminium halide I)b) to supplied titanium in I)a) in the preparation of I) is in the range of 1 to 12; and wherein the average particle size distribution (PSD) of the catalyst particles is in the range of 0.8 to 1.6 and wherein PSD is defined as PSD=D90?D10)/D50.

Abstract: The invention relates to an ethylene polymer comprising a low molecular weight component and a high molecular weight component, wherein—the ethylene polymer has a density of 955 to 977 kg/m3 and a viscosity value ?100 of at most 1500 Pa·s and a strain hardening as determined according to ISO18488 of at least 25 MPa, for example 30 to 40 MPa,—the amount of the low molecular weight component with respect to the total ethylene polymer is at least 60 wt %,—the low molecular weight component has a Mw of 10,000 to 50,000 g/mol, a ratio of Mw/Mn of 2.5 to 4.5 and a density of 965 to 985 kg/m3 and—the high molecular weight component has a Mw of 100,000 to 1,000,000, a ratio of Mw/Mn of 2.5 to 4.0 and a density of 920 to 950 kg/m3.

Abstract: The invention relates to a metallocene complex according to formula (I), (I) wherein R1 and R2 are independently selected from H, an alkyl or an aryl group, wherein R3 is a C1-C10 alkyl group, wherein R? is selected from H, an alkyl group, an aryl group and wherein different R? substituents can be connected to form a ring structure and wherein B is a 1,2 phenylene bridging moiety, which can be optionally substituted, wherein Mt is selected from Ti, Zr and Hf, X is an anionic ligand, z is the number of X groups and equals the valence of Mt minus 2. The invention also relates to a catalyst comprising the reaction product of the metallocene complex and a cocatalyst. Further the invention relates to a (co)polymerisation process of olefinic monomers.

Abstract: The invention relates to a metallocene complex according to formula (I), (I) wherein R1 and R2 are independently selected from H, an alkyl or an aryl group, wherein R3 is a C1-C10 alkyl group, wherein R? is selected from H, an alkyl group, an aryl group and wherein different R? substituents can be connected to form a ring structure and wherein B is a 1,2 phenylene bridging moiety, which can be optionally substituted, wherein Mt is selected from Ti, Zr and Hf, X is an anionic ligand, z is the number of X groups and equals the valence of Mt minus 2. The invention also relates to a catalyst comprising the reaction product of the metallocene complex and a cocatalyst. Further the invention relates to a (co)polymerisation process of olefinic monomers.

Abstract: The invention relates to an ethylene polymer comprising a low molecular weight component and a high molecular weight component, wherein—the ethylene polymer has a density of 955 to 977 kg/m3 and a viscosity value ?100 of at most 1500 Pa·s and a strain hardening as determined according to ISO18488 of at least 25 MPa, for example 30 to 40 MPa,—the amount of the low molecular weight component with respect to the total ethylene polymer is at least 60 wt %,—the low molecular weight component has a Mw of 10,000 to 50,000 g/mol, a ratio of Mw/Mn of 2.5 to 4.5 and a density of 965 to 985 kg/m3 and—the high molecular weight component has a Mw of 100,000 to 1,000,000, a ratio of Mw/Mn of 2.5 to 4.0 and a density of 920 to 950 kg/m3.

Abstract: The present invention provides a compound according to formula (I): (I) wherein: •R2 is abridging moiety containing at least one sp2 hybridised carbon atom; •each R4, R4?, R7 and R7? are hydrogen or moieties comprising 1-10 carbon atoms, wherein each R4, R4?, R7 and R7? are the same; •each R5, R5?, R6 and R6? are moieties comprising 1-10 carbon atoms, wherein each R5, R5?, R6 and R6? are the same; and •Z is a moiety selected from ZrX2, HfX2, or TiX2, wherein X is selected from the group of halogens, alkyls, aryls and aralkyls. Such compound allows for the preparation of catalyst systems that provide improved olefin reactivity, such as ethylene reactivity, increased molecular weight in olefin polymerisation, such as increased Mw in ethylene polymerisation, and increased comonomer incorporation in copolymerisation reactions of olefins, such as in copolymerisation reactions of ethylene with 1-hexene.

Abstract: The present invention provides a compound according to formula (I): (I) wherein: R2 is a bridging moiety containing at least one sp2 hybridised carbon atom; each R4, R4?, R7 and R7? are hydrogen or moieties comprising 1-10 carbon atoms, wherein each R4, R4?, R7 and R7? are the same; each R5, R5?, R6 and R6? are moieties comprising 1-10 carbon atoms, wherein each R5, R5?, R6 and R6? are the same; and Z is a moiety selected from ZrX2, HfX2, or TiX2, wherein X is selected from the group of halogens, alkyls, aryls and aralkyls. Such compound allows for the preparation of catalyst systems that provide improved olefin reactivity, such as ethylene reactivity, increased molecular weight in olefin polymerisation, such as increased Mw in ethylene polymerisation, and increased comonomer incorporation in copolymerisation reactions of olefins, such as in copolymerisation reactions of ethylene with 1-hexene.

Abstract: The invention relates to a metallocene complexes according to formula (I), (I) wherein R1 and R2 are independently selected from H, an alkyl or an aryl group, wherein R3 is a C1-C10 alkyl group, wherein R? is selected from H, an alkyl group, an aryl group and wherein different R? substituents can be connected to form a ring structure and wherein B is a 1,2 phenylene bridging moiety, which can be optionally substituted, wherein Mt is selected from Ti, Zr and Hf, X is an anionic ligand, z is the number of X groups and equals the valence of Mt minus 2. The invention also relates to a catalyst comprising the reaction product of the metallocene complex and a cocatalyst. Further the invention relates to a (co)polymerisation process of olefinic monomers.

Abstract: The invention relates to a method for producing ?,?-unsaturated carboxylic acids or salts thereof, comprising a step in which a metallalactone is reacted in a solvent in the presence of a halide; to a composition that comprises ?,?-unsaturated carboxylic acids or salts thereof and halide ions; and to the use of said composition for the production of superabsorbent materials or as a monomer composition for producing polymers.