Sabic Global Technologies B.v.

Saudi Basic Industries Corporation

Mudubagilu Udaya Kumar

Martin Alexander Zuideveld

Kiran Arunkumar Puthamane

Dafne Lise Steinfort

Paresh Bhagvanbhai Rasadiya

Bharatkumar Ravjibhai Paghadar

Sambhaji Nanasaheb Chougule

Anika Meppelder

A process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, and an internal electron donor according to Formula (I), said process comprising the steps of: i) contacting a compound RMgXwith an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, being a solid Mg(OR)X, ii) optionally contacting the solid Mg(OR)X-x obtained in step ii) with at least one activating compound selected from the group formed by activating electron donors and metal alkoxide compounds of formula M(OR)(OR)or M(OR)(R), to obtain a second intermediate product; iii) contacting the first or second intermediate reaction product, obtained respectively in step i) or ii), with a halogen-containing Ti-compound and said compound represented Formula (I), as the internal electron donor.

Process for polymerization of polypropylene using ziegler-natta procatalyst with novel 1,3-diether internal donors

The invention relates to a novel process for the preparation of 2,2'-bis indenyl biphenyl ligands of following formula (3): The invention also relates to metallocene complexes prepared using the novel process for the preparation of 2,2-bis indenyl biphenyl ligands. The invention also relates to novel intermediates used in the process for the preparation of 2,2&#x2032;-bis indenyl biphenyl ligands. 

Process for the preparation of 2,2'-bis-indenyl biphenyl ligands and their metallocene complexes

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Baroda, India

Mudubagilu Udaya Kumar