Sabic Global Technologies B.v.

Saudi Basic Industries Corporation

Peter Degenhart

Martin Alexander Zuideveld

Robbert Duchateau

Henrica Norberta Alberta Maria Steenbakkers-Menting

Miloud Bouyahyi

Lidia Jasinska-Walc

Ajay Kumar Taraiya

Martin Antonius Van Es

Maria Soliman

Aurora Alexandra Batinas-Geurts

Sarah Van Mierloo

Franciscus Elisabeth Jacobus Essers

Mark Johannes Boerakker

Zahra Fahimi

Lanti Yang

Raymond Gerlofsma

Ana Luisa Vaz

Fahimi Zahra

Mark Berix

Troisi Enrico

Van Martin Antonius Es

The invention relates to a biaxially oriented pipe made of a polymer composition comprising a propylene-based polymer, wherein the propylene-based polymer comprises A) a heterophasic propylene copolymer, wherein the heterophasic propylene copolymer consists of (a1) a propylene-based matrix, wherein the propylene-based matrix consists of a propylene homopolymer and/or a propylene copolymer consisting of at least 70 wt % of propylene monomer units and at most 30 wt % of ethylene and/or α-olefin monomer units, based on the total weight of the propylene-based matrix and (a2) a dispersed ethylene-α-olefin copolymer, wherein the sum of the total amount of propylene-based matrix and total amount of the dispersed ethylene-α-olefin copolymer in the heterophasic propylene copolymer is 100 wt %, wherein the amount of (a2) with respect to the propylene-based polymer is 2.0 to 30.0 wt %.

Biaxially oriented pipe

The invention relates to a biaxially oriented pipe made of a polymer composition comprising a propylene-based polymer, wherein the propylene-based polymer comprises a random copolymer of propylene and a comonomer which is ethylene and/or an a-olefin having 4 to 10 carbon atoms, wherein the propylene-based polymer has a comonomer content of 0.5 to 3.8 wt % based on the propylene-based polymer.

Disclosed is a process for preparation of a propylene-based polymer composition involving the steps of:

Process for enhancing the melt strength of propylene-based polymer compositions

The invention relates to a process to produce irradiated polypropylene granulate wherein granulate comprising 1. a propylene polymer and 2. a vitamin E comprising stabilizer package is irradiated by electron beam radiation.

Polypropylene composition

A process for the preparation of a catalyst system for olefin polymerization, including: A) providing said procatalyst obtainable via a process comprising: i) contacting a compound RMgXwith an alkoxy- or aryloxy-containing silane compound to give a first intermediate reaction product, ii) optionally contacting the solid product obtained in step i) with at least one activating compound selected from an activating electron donor or metal alkoxide compound; iii) contacting the first or second intermediate reaction product, with a halogen-containing Ti-compound and optionally an internal electron donor to obtain the procatalyst; and B) contacting the procatalyst with a co-catalyst and at least diethylaminotriethoxysilane as the external donor. Further disclosed is a catalyst system obtained by the process; a process for preparing a polyolefin by contacting at least one olefin with the catalyst system; a polyolefin obtained thereby; a composition comprising a propylene-ethylene copolymer; a shaped article thereof; and use of the polyolefin.

Catalyst system for polymerization of an olefin

The invention relates to a moulded article made from a polypropylene composition comprising 48-94.9 mass % of a polypropylene; 5-30 mass % of glass fibers having average length of 1-50 mm; 0.1-2 mass % of oleamide and/or erucamide; and 0-20 mass % of other additives; the article showing a color change of dL&#x3c;2 in the PSA/Renault scratch tests and a color change of dL&#x3c;1.5 in the Erichsen scratch test. This article shows an excellent combination of properties, especially a good balance between stiffness and impact resistance, which have excellent surface appearance, and high resistance to surface scratching and abrasion.

Scratch-resistant moulded article made from a filled polypropylene composition

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Echt, Netherlands

Peter Degenhart