Abstract: A process for the preparation of a propylene homopolymer comprising polymerizing propylene in the presence of a catalyst comprising: (i) a metallocene complex of a group (IV) metal said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier; preferably wherein the melting point of the propylene polymer is controlled by adjusting the amount of or nature of the boron cocatalyst.
Type:
Grant
Filed:
October 17, 2013
Date of Patent:
October 18, 2016
Assignee:
Borealis AG
Inventors:
Pascal Castro, Kalle Kallio, Laurie Huhtanen, Ville Virkkunen, Noureddine Ajellal
Abstract: A process for the polymerization of at least one olefin comprising reacting said at least one olefin with a catalyst comprising: (i) a metallocene complex said metallocene comprising at least two cyclopentadienyl type ligands; (ii) a boron cocatalyst; and (iii) an aluminoxane cocatalyst; said catalyst being in solid form, preferably in solid particulate form, and being free from an external carrier.
Type:
Grant
Filed:
October 17, 2013
Date of Patent:
October 18, 2016
Assignee:
Borealis AG
Inventors:
Kalle Kallio, Marja Mustonen, Lauri Huhtanen, John Severn, Pascal Castro, Ville Virkkunen, Anu-Leena Hongell, Ismo Lehtiniemi
Abstract: The present invention relates to a low density polyethylene having a molecular weight distribution Mw/Mn which is greater than 15, a storage modulus G? (5 kPa) which is above 3000 and a vinylidene content which is at least 15/100k C, compositions, a process for production of the low density polyethylene, a continuous ethylene polymerization method for introducing vinylidene in a low density polyethylene, a method for an extrusion coating process, an article, e.g. an extrusion article, and use in extrusion coating.
Type:
Application
Filed:
June 16, 2016
Publication date:
October 13, 2016
Applicant:
BOREALIS AG
Inventors:
Auli Nummila-Pakarinen, Bernt-Ake Sultan, Bjorn Voigt, Martin Anker, Mattias Bergqvist, Thomas Gkourmpis, Thomas Hjertberg
Abstract: The present invention relates to a polypropylene which has—a melt flow rate MFR(230° C., 2.16 kg) of at least 13 g/10 min,—an amount of xylene solubles XS of 6.0 wt % or less, and—a crystalline fraction, wherein at least 10% of the crystalline fraction melts the temperature range of from 160 to 170° C., as determined by the stepwise isothermal segregation technique (SIST).
Type:
Grant
Filed:
October 5, 2011
Date of Patent:
October 11, 2016
Assignee:
Borealis AG
Inventors:
Saeid Kheirandish, Petar Doshev, Michael Reisecker, David Friel, Sybille Simon
Abstract: Polypropylene composition comprising comonomer units derived from ethylene in an amount of from 9.0 to 52.0 mol-% and comonomer units derived from a higher a-olefin in an amount of from 0.4 to 3.0 mol-%, wherein said polypropylene composition has an amount of xylene cold solubles of at least 30 wt.-%, wherein further the xylene cold soluble fraction has an ethylene content of from 20.0 to 80.0 mol-% and a higher a-olefin content from 0.1 to 1.5 mol-%.
Type:
Application
Filed:
July 14, 2014
Publication date:
September 29, 2016
Applicant:
BOREALIS AG
Inventors:
Wilfried TÖLTSCH, Luigi RESCONI, Kristin REICHELT
Abstract: A multilayer machine direction oriented film comprising at least an (A) layer and (B) layer, at least one of said (A) layer or (B) layer comprising at least 50 wt % of a multimodal linear low density polyethylene (LLDPE) having a density of 905 to 940 kg/m3 and an MFR2 of 0.01 to 20 g/10 min and comprising a lower molecular weight (LMW) component and a higher molecular weight (HMW) component; wherein said LMW component is an ethylene homopolymer and said HMW component is an ethylene polymer of ethylene with at least two C4-12 alpha olefins; wherein said film is a stretched film which is uniaxially oriented in the machine direction (MD) in a draw ratio of at least 1:3 and has a film thickness of at least 40 microns (after stretching) and wherein said film does not comprise a layer in which more than 50 wt % of said layer comprises a polymer component having a melting point (Tm) of 100° C. or less.
Type:
Application
Filed:
November 19, 2014
Publication date:
September 22, 2016
Applicant:
BOREALIS AG
Inventors:
Auli NUMMILA-PAKARINEN, Peter NIEDERSUESS
Abstract: The present invention relates to a photovoltaic module comprising a solar cell element and an insulation material laminated to at least one side of the solar cell element wherein the insulation material comprises an olefin copolymer which comprises silane group-containing monomer units, to a process for the production of such a photovoltaic module, and to the use of an olefin copolymer which comprises silane group-containing monomer units for the production of an insulation layer of a photovoltaic module.
Abstract: A multimodal polyethylene polymer having an MFR2 of 0.05 to 10.0 g/10 min, a density of 940 kg/m3 or more, a tensile modulus of 900 MPa or more wherein Formula (I).
Type:
Grant
Filed:
May 9, 2014
Date of Patent:
September 13, 2016
Assignees:
Abu Dhabi Polymers Company Limited (Borouge), LLC, Borealis AG
Inventors:
Andrey Buryak, Christian Rein, Luc Monnissen, Geir Kristian Johnsen, Joy Cheng
Abstract: An ethylene polymer with a density of less than 955 kg/m3 obtained by polymerisation with a single-site catalyst and having a shear thinning index SHI2.7/210 of less than 5 wherein ethylene polymer comprises two components.
Type:
Grant
Filed:
November 25, 2013
Date of Patent:
September 6, 2016
Assignee:
BOREALIS AG
Inventors:
Esa Kokko, Anneli Pakkanen, Markku Vahteri, Magnus Palmlof, Jeroen Oderkerk
Abstract: The present invention relates to a polypropylene homopolymer, a process for the preparation of such polypropylene homopolymer and a polypropylene blend comprising such polypropylene homopolymer as well as a pipe, sheet, film, fiber, moulded article or extrusion coating comprising such polypropylene homopolymer or polypropylene blend.
Abstract: Blow molded article comprising a propylene copolymer composition, the propylene copolymer composition comprises (a) a propylene copolymer (A) having a comonomer content of 0.1 to 2.5 mol-%, the comonomers are C5 to C12 ?-olefins, and (b) a propylene copolymer (B) having a comonomer content of 1.0 to 7.0 mol-%, the comonomers are C5 to C12 ?-olefins, wherein further (i) the comonomer content in the propylene copolymer (A) is lower compared to the comonomer content in the propylene copolymer (B), (ii) the propylene copolymer composition has a comonomer content of 0.4 to 5.0 mol-%, the comonomers are C5 to C12 ?-olefins.
Type:
Application
Filed:
October 23, 2014
Publication date:
August 18, 2016
Applicant:
BOREALIS AG
Inventors:
Jingbo WANG, Katja KLIMKE, Petar DOSHEV, Pauli LESKINEN
Abstract: The present invention relates to a polypropylene composition comprising comonomer units derived from ethylene in an amount of from 1.5 wt % to 35 wt %, and from at least one C5-12 alpha-olefin in an amount of from 1.0 mol % to 3.0 mol %, wherein the polypropylene composition has an amount of xylene solubles XS of at least 40 wt %, and the xylene solubles have an amount of ethylene-derived comonomer units of from 4.0 wt % to 70 wt %.
Type:
Grant
Filed:
February 26, 2013
Date of Patent:
August 16, 2016
Assignee:
BOREALIS AG
Inventors:
Kristin Reichelt, Sameli Hakola, Luigi Resconi
Abstract: Heterophasic propylene copolymer comprising —a matrix (M) being a polypropylene, said polypropylene comprises at least three polypropylene fractions, the three polypropylene fractions differ from each other by the melt flow rate MFR2 (230° C.) and at least one of the three polypropylene fractions has a melt flow rate MFR2 (230° C.) in the range of 1.0 to 15.0 g/10 min, and —an elastomeric propylene copolymer dispersed in said matrix, wherein —the heterophasic propylene copolymer has a melt flow rate MFR2 (230° C.) of equal or more than 20.0 g/10 min, and —the amorphous phase of the xylene cold soluble fraction of the heterophasic propylene copolymer has an intrinsic viscosity of equal or higher than 2.0 dl/g.
Type:
Grant
Filed:
August 1, 2011
Date of Patent:
August 16, 2016
Assignee:
BOREALIS AG
Inventors:
Cornelia Kock, Petar Doshev, Elisabeth Potter, Guenter Gsellmann, Pauli Leskinen
Abstract: Machine direction oriented multilayer film suitable for preparing labels, comprising a core layer of a bimodal terpolymer and two outer layers comprising HDPE.
Abstract: Use of an additive mixture containing a linear polypropylene and at least one additive in a polypropylene composition comprising said additive mixture and a branched polypropylene to reduce the gel index of said polypropylene composition.
Abstract: The present invention is directed to a process of polymerizing propylene in at least three stages. In the first, and optionally in the second, polymerization stage propylene, ethylene and at least one alpha-olefin having from 4 to 10 carbon atoms are introduced into the polymerization reactors as fresh monomer feeds. In the third polymerization stage propylene and optionally ethylene is introduced as fresh monomer feed.
Type:
Grant
Filed:
December 19, 2013
Date of Patent:
August 2, 2016
Assignee:
BOREALIS AG
Inventors:
Kauno Alastalo, Johanna Lilja, Pauli Leskinen
Abstract: A process for polymerizing propylene in the presence of a polymerization catalyst by polymerizing propylene with a comonomer selected from the group of ethylene and C4-C10 alpha-olefins in two polymerization stages where the comonomer is present in at least one of the polymerization stages. The first polymerization stage is conducted in a loop reactor and the second polymerization stage in a gas phase reactor. The polymer produced in first polymerization stage has a higher melt flow rate and a lower content of comonomer units than the final polymer mixture. The process can be operated with a high throughput and catalyst productivity. The polymers are useful for making films.
Abstract: Polypropylene copolymer for biaxially oriented polypropylene (BOPP) with low isotacticity, high melting temperature and low comonomer content.
Type:
Application
Filed:
September 23, 2014
Publication date:
July 21, 2016
Applicants:
BOREALIS AG, ABU DHABI POLYMERS CO. LTD (BOROUGE) LLC.
Inventors:
Dietrich GLOGER, Thomas HORILL, Vijay FRANCIS, Gurusamy SAKKARAIYAPPAN, Niraj DIXIT, Kauno Alastalo, Torvald VESTBERG, Johan DEFOER
Abstract: Extrusion blow molded bottle comprising a propylene copolymer having a melt flow rate MFR2 (230° C.) of 2.0 to 6.0 g/10 min, a xylene cold soluble content of 20.0 to 40.0 wt.-%, and a comonomer content of more than 4.5 to 12.0 wt.-%, wherein the comonomer content of xylene cold soluble fraction of the extrusion blow molded article is of 16.0 to 28.0 wt.-%.