Borealis Technology Oy

Borealis Ag

Janne Maaranen

Ove S Andell

Tiina Vanne

Kalle Kallio

Mikhail V Nikulin

Andrey Buryak

Anneli Pakkanen

Tore Dreng

Esa Kokko

Susana Filipe

Carl-Eric Wilen

Albrecht Dix

Christian Piel

Soile Rautio

Jyrki Kauhanen

Hendrik Luttikhedde

Alexander Krajete

Eija Lappi

Ayodele Olutayo Fiola

Alexander Zelmanovich Voskoboynik

Andrei Fyodorovich Asachenko

Dmitry Konanovich

Alexey Tzarev

Erik Mansner

Laura Saarinen

Marina Surakka

Peter Ekholm

Antti Penninkangas

Jouni Hoikka

A polyethylene moulding composition having a multimodal molecular weight distribution, having a density according to ISO 1183 at 23&#xb0; C. in the range of 920 to 960 kg/mand an MFR190/2 according to ISO 1133 in the range of 0.05 to 10 g/10 min, said polyethylene moulding composition comprising at least three ethylene polymer fractions having distinct molecular weights: A) 15 to 50 wt % of a low molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight Mw in the range of 15 to 40 kg/mol; B) 15 to 50 wt % of a medium molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight Mw in the range of 70 to 200 kg/mol; and C) 15 to 50 wt % of a high molecular weight ethylene homopolymer or copolymer fraction with a weight average molecular weight Mw in the range of 220 to 400 kg/mol, provided that one of A, B and C is an ethylene homopolymer and at least one other component is an ethylene copolymer with at least one C-Ccomonomer; and wherein the composition has&#x2014;a Shore D hardness measured according to ASTM D2240-05 (15 sec) of at least 56.0.

Moulding composition

A complex containing a ligand of formula (I): 

Catalysts

A process for the polymerisation of ethylene and optionally at least one Calpha olefin comonomer in the slurry or solution phase in a reactor having a polymer outlet stream, a procatalyst or catalyst feed stream and a hydrogen feed stream, said polymerisation being effected in the presence of a metallocene catalyst, a diluent and hydrogen, wherein said diluent is recycled from said outlet stream to said hydrogen feed stream, said procatalyst or catalyst feed stream is free of hydrogen, said hydrogen feed stream is free of procatalyst or catalyst and said procatalyst or catalyst feed stream does not comprise recycled diluent.

Polymerization process

A metallocene catalyst in which the metal is coordinated by a &#x3b7;5 cyclopentadienyl ligand which forms part of an indenyl or indenyloid moiety, characterized in that said moiety is directly or indirectly substituted at the 4-, 5-, 6- or 7-position by a pendant siloxy or germyloxy group.

Metallocene catalysts containing an idenyl moiety substituted at the 4,-5,-6- or 7-position by a siloxy or germyloxy group

The invention describes ligands of formula (I), wherein LIG represents an &eegr; -ligand substituted by a group R and a group (R&Prime;) ; X represents a 1 to 3 atom bridge; Y represents a nitrogen or phosphorus atom; Z represents a carbon, nitrogen or phosphorus atom.

The invention relates to an organometallic compound comprising a central transition metal atom and a ligand coordinated thereto having a heteroatomic ring structure, characterized in that the ligand includes at least three nitrogen atoms, three of them being bonded to the same carbon atom.

Organometallic compound, preparation method thereof and process for polymerization of olefins by means of a catalyst composition including the organometallic compound

Growing community of inventors

Kerava, Finland

Janne Maaranen