Saudi Basic Industries Corporation

Sabic Global Technologies B.v.

Sabic Basic Industries Corporation

Saudi Bosic Industries Corporation

Akhlaq A Moman

Atieh Abu-Raqabah

Orass M Hamed

Henrica Norberta Alberta Maria Steenbakkers-Menting

Patrick Elisabeth Luc Voets

John Ledford

Syriac J Palackal

Martin Alexander Zuideveld

Ahmad Abdullah Alshaiban

Sudhakar R Padmanabhan

Khalid Abdullah Al-Bahily

Inaamul Haq Siddiqui

Bandar Abdullah Almohammadi

Abdulaziz Hamad Al-Humydi

Abderrahman Meddad

Mansour Izzat Taftaf

Said Fellahi

Navin Nallaveerapan

Raju Raghavan

Ian Blackmore

Atieh Aburaqabah

Muhammad Atiqullah

Faizur Rahman

Muhammad A Al-Saleh

Moughrabiah Wajeeh

Muhammad Naseem Akhtar

Salaheldin Habibi

Atieh Abu Raqabah

Waltraud Voigtlander

Abdulaziz Al-Nezari

Javaid H Khan

Muhammad Ibrahim

Sameh Rizkallah

Abdullah Mohammed Al-Obaid

Abdullah Shamroukh Al-Otaibi

Salaheldin M A Habibi

Waltraud VOIGTLÄNDER

Abdulaziz Humydi-Al

Yahya Banat

Syricac Palackal

D Nallaveerapan

The invention relates to a polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer, wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least 98 wt %, for example at least 98.5 wt %, preferably at least 99 wt %, more preferably at least 99.5, for example at least 99.75 wt % based on the polypropylene composition, wherein the polypropylene composition has a melt flow rate in the range of 0.70 to 2.4 dg/min as measured according to IS01 133 (2.16 kg/230&#xb0; C.), an Mw/Mn in the range from 7.0 to 13.0, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight, an Mz/Mn is in the range from 20 to 50, wherein Mz stands for the z-average molecular weight and wherein Mw, Mn and Mz are measured according to ASTM D6474-12.

Polypropylene composition for tapes

The invention relates to a polypropylene composition comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most (1.0) wt % based on the propylene-ethylene copolymer, wherein the amount of propylene homopolymer or propylene-ethylene copolymer is at least (98) wt %, for example at least (98.5) wt %, preferably at least (99) wt %, more preferably at least (99.5), for example at least (99.75) wt % based on the polypropylene composition, wherein the polypropylene composition has a melt flow rate in the range of (0.10) to less than (0.70) dg/min as measured according to ISO1133 (2.16 kg/230&#xb0; C.), an Mw/Mn in the range from (7.0) to (13.0), wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight, an Mz/Mn is in the range from (20) to (50), wherein Mz stands for the z-average molecular weight and wherein Mw, Mn and Mz are measured according to ASTM (D6474-12).

Polypropylene composition for non-pressurized pipes

The invention relates to a biaxially oriented polypropylene (BOPP) film comprising a propylene homopolymer or propylene-ethylene copolymer having an ethylene content of at most 1.0 wt % based on the propylene-ethylene copolymer having an Mw/Mn in the range from 5.0 to 12, wherein Mw stands for the weight average molecular weight and Mn stands for the number average weight and wherein Mw and Mn are measured according to ASTM D6474-12, an XS in the range from 1.0 to 6.0 wt %, wherein XS stands for the amount of xylene solubles which are measured according to ASTM D 5492-10, a melt flow rate in the range of 1 to 10 dg/min as measured according to IS01133 (2.16 kg/230&#xb0; C.) and a crystal size distribution as indicated by a height/width ratio of the highest peak of the first cooling curve of at least 0.70 W/g&#xb0; C. as determined by ASTM D3418-08 using a heating and cooling rate of 10&#xb0; C./min.

Polypropylene for use in BOPP applications

A procatalyst for polymerization of olefins, based on a magnesium compound of the formula MgR'R&#x2033; wherein R&#x2032; is an alkoxide or aryloxide group and R&#x2033; is an alkoxide or aryloxide group or halogen that has been reacted with a tetravalent titanium halide, an activator being a monoester and an internal donor of formula B: as described herein. Also described is a polymerization catalyst system comprising the procatalyst, a co-catalyst and optionally an external electron donor; a process of making a polyolefin by contacting an olefin with the catalyst system; a polyolefinobtained by or obtainable by the process; and a polyolefin, preferably a polypropylene, having a molecular weight distribution of between 3 and 15, a molecular weight (M) of between 200,000 to 1,000,000 g/mol, a melting temperature of more than 145&#xb0; C., a value for the xylene solubles of less than 4 wt. % and a shaped article therefrom.

Procatalyst for polymerization of olefins

The present invention relates to a process for preparing a solid catalyst component suitable for producing polyethylene and its copolymers, said process comprising the steps of: (a) contacting a dehydrated support having hydroxyl groups with a magnesium compound having the general formula MgRR; (b) contacting the product obtained in step (a) with modifying compounds (A) and/or (B) and/or (C), wherein: (A) is at least one oxygen and/or nitrogen comprising organic compound; (B) is a compound having the general formula R(RO)SiX, (C) is a compound having the general formula (RO)M, and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX, wherein Ti is a titanium atom and X is a halide atom, wherein an organometallic compound is added either before step (a) and/or after step (c). The invention also relates to a solid catalyst component obtainable by said process. The invention further relates to a process for producing polyethylene and its copolymers in the presence of the solid catalyst component and a co-catalyst.

Process for making a solid catalyst component for ethylene polymerization and co-polymerization

A procatalyst for polymerization of olefins, which procatalyst is based on a magnesium compound of the formula MgR'R&#x2033; wherein R&#x2032; is an alkoxide or aryloxide group and R&#x2033; is an alkoxide or aryloxide group or halogen, an activator being a monoester and an internal donor represented by a compound according to formula A: as described herein. Also described is a polymerization catalyst system comprising the procatalyst, a co-catalyst and optionally an external electron donor; a process of making a polyolefin, by contacting an olefin with the catalyst system; a polyolefin, obtained by or obtainable by the process; and a polyolefin, having a molecular weight distribution of between 4 and 15, a molecular weight (M) of between 300,000 to 1,500,000 g/mol, a melting temperature of more than 150&#xb0; C., a value for the xylene solubles of less than 4 wt. % and a shaped article therefrom.

The present invention relates to a process for preparing a solid catalyst component suitable for producing polyethylene and its copolymers, said process comprising the steps of: (a) contacting a dehydrated support having hydroxyl groups with a magnesium compound having the general formula MgRR; (b) contacting the product obtained in step (a) with modifying compounds (A) and/or (B) and/or (C), wherein: (A) is at least one oxygen and/or nitrogen comprising organic compound; (B) is a compound having the general formula R(RO)SiX, (C) is a compound having the general formula (RO)M, and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX, wherein Ti is a titanium atom and X is a halide atom, wherein an organometallic compound is added after step (a) and before step (b). The invention also relates to a solid catalyst component obtainable by said process. The invention further relates to a process for producing polyethylene and its copolymers in the presence of the solid catalyst component and a cocatalyst.

The present invention relates to a process for preparing a solid catalyst component suitable for producing polyethylene and its copolymers, said process comprising the steps of: (a) contacting a dehydrated support having hydroxyl groups with a magnesium compound having the general formula MgRR; (b) contacting the product obtained in step (a) with modifying compounds (A), (B) and (C), wherein: (A) is at least one compound selected from the group consisting of carboxylic acid, carboxylic acid ester, ketone, acyl halide, aldehyde and alcohol; (B) is a compound having the general formula R(RO)SiX, (C) is a compound having the general formula (RO)M, and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX, wherein Ti is a titanium atom and X is a halide atom. The invention also relates to a solid catalyst component obtainable by said process. The invention further relates to a process for producing polyethylene and its copolymers in the presence of the solid catalyst component and a co-catalyst.

Process for making a solid catalyst component for ethylene polymerization and copolymerization

A catalyst composition for polymerizing olefins to polymers having bimodal molecular weight distribution comprises two transition metal-containing metallocene compounds, a magnesium compound, an alcohol, an aluminum containing co-catalyst and a polymeric support. The transition metal in one of the metallocene compounds is zirconium and the transition metal in the second metallocene compound is selected from the group consisting of titanium, vanadium and hafnium. Polyolefin polymers made using the catalyst composition have broad molecular weight distributions and are useful in film and blow molding applications.

Polymer supported metallocene catalyst composition for polymerizing olefins

A catalyst composition includes: A) a solid catalyst precursor containing a metallocene compound, a magnesium compound and a particulate polymeric material; and B) a cocatalyst containing aluminum compound. The catalyst is prepared by combining metallocene compound, magnesium compound and particles of polymeric material to form a catalyst precursor; and activating the catalyst precursor with alkylaluminums and/or aluminoxanes. Homopolymeric or copolymeric polyolefins are produced by contacting olefins or olefins and alpha-olefins with the catalyst composition.

Catalyst composition and process for olefin polymerization and copolymerization using supported metallocene catalyst systems

The present invention relates to a process for homopolymerization of ethylene or copolymerization of ethylene with alpha-olefins by contacting ethylene or ethylene and alpha-olefin with a catalyst composition comprising: (a) a solid catalyst precursor comprising at least one vanadium compound, at least one magnesium compound and a polymeric material or a solid catalyst precursor comprising at least one vanadium compound, at least one further transition metal compound and/or at least one alcohol, at least one magnesium compound and a polymeric material; and (b) a cocatalyst comprising an aluminum compound.

Process for the polymerization of olefins

The present invention relates to a catalyst composition for polymerization of olefins comprising: (a) a solid catalyst pre cursor comprising at least one vanadium compound, at least one magnesium compound and a polymeric material or a solid catalyst precursor comprising at least one vanadium compound, at least one further transition metal compound and/or at least one alcohol, at least one magnesium compound and a polymeric material; and (b) a cocatalyst comprising at least one aluminum compound; and to a method for preparing a catalyst composition according to the present invention, comprising the steps of: (a) combining the components of the solid catalyst precursor; and (b) activating the catalyst precursor with aluminum compound.

Catalyst composition for polymerization of olefins and method for preparing the same

The present invention relates to a supported catalyst system for olefin polymerization which comprises at least one metallocene component and a support of an inorganic oxide of silica, aluminum or a polymer containing hydroxyl groups. The support is modified with an organogermane and/or organotin compound. The inventive catalyst system produces minimal reactor fouling, has excellent productivity and good hydrogen responsiveness. The present invention also relates to a process for preparing the catalyst system and to the slurry/suspension or gas-phase polymerization of olefins using the catalytic system, optionally with a small amount of aluminoxane cocatalyst.

Supported metallocene catalyst system for olefin polymerization, method for making and using the same

The present invention relates to a catalyst precursor for homo- or copolymerization of olefins comprising a metallocene compound, a magnesium containing compound and a thermoplastic polymer support, and optionally further comprising a metal alkoxy compound, an aluminum containing compound, a silicon containing compound and/or an alcohol. The invention further relates to the process of polymerizing olefins using the inventive catalyst precursor.

Catalyst precursor for the polymerization of olefins and polymerization process using the same

The present invention relates to a catalyst composition for homopolymerization or copolymerization of olefins comprising: (a) a solid catalyst precursor comprising a transition metal compound of group IVB, VB, or VIB of the periodic table, a magnesium compound and aliphatic polyketone particles; and (b) a cocatalyst comprising an aluminum alkyl, an aluminoxane or mixtures thereof; and a process for homopolymerisation or copolymerisation of olefins.

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Riyadh, Saudi Arabia

Akhlaq A Moman