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Assignee: Borealis Technology Oy


Location: Porvoo, FI
No. of patents: 174

1          
NumberTitleIssue Date
8173747Sterilisable and tough impact polypropylene composition
The present invention relates to a heterophasic polypropylene composition which is sterilizable and has a high impact strength as well as improved optical properties both before and after a step of heat sterilization. Furthermore, the present invention relates to a ...
05/08/2012
8163845Biaxially oriented electrical insulating film
The invention relates to a biaxially oriented electrical insulating film which contains a mixture from a polypropylene P1 and a polypropylene P2 which is different therefrom. The polypropylene P1 is a linear polypropylene and has an Mw/Mn>5 and a mesopentadene isota...
04/24/2012
8153745Multi-branched polypropylene
Multi-branched polypropylene having a g′ of less than 1.00. ...
04/10/2012
8143350Polyethylene composition for the production of peroxide crosslinked polyethylene
The invention relates to a polyethylene composition for the production of peroxide crosslinked polyethylene and a method for the production thereof. The invention further relates to the use of such a polymer composition and to a peroxide crosslinked polyethylene pip...
03/27/2012
8143184Method for the preparation of olefin polymerisation catalyst
The invention is directed to a process for producing an olefin polymerization catalyst wherein a solution of a soluble magnesium complex containing an element of is Group 13 or 14 of the Periodic Table (IUPAC) is contacted with a halogen containing transition metal ...
03/27/2012
8142902Extrusion coated substrate
Certain embodiments provide an article comprising a substrate, wherein the substrate is extrusion coated with a composition comprising a multi-branched polypropylene having a g′ of less than 1.00. In certain embodiments, the substrate is extrusion coated with a co...
03/27/2012
8142871Coated pipes having improved mechanical properties at elevated temperatures and a method of production thereof
The present invention deals with coated pipes having a layer of multimodal polyethylene. The multimodal ethylene copolymer is a copolymer of ethylene with one or more alpha-olefin comonomers having from 4 to 10 carbon atoms and has a weight average molecular weight ...
03/27/2012
8124877Semiconductive polymer composition
The invention relates to a semiconductive polymer composition for use in power cables. The composition comprises a multimodal ethylene homo- or copolymer produced in a polymerization process comprising a single site catalyst whereby the polymer composition has a den...
02/28/2012
8119212Pressure pipe comprising a multimodal polyethylene composition with an inorganic filler
The present invention relates to a pipe or a supplementary pipe article comprising a polyethylene composition comprising a base resin which comprises (A) a first ethylene homopolymer fraction, and (B) a second ethylene homo- or copolymer fraction, wherein fraction (...
02/21/2012
8097678Outer sheath layer for power or communication cable
The present invention relates to a polyethylene composition, comprising a base resin which comprises (i) a first fraction which is an ethylene homo- or copolymer, and (ii) a second fraction which is an ethylene copolymer, wherein the first fraction (i) has a lower w...
01/17/2012
8088866Polyethylene composition for pressure pipes with enhanced flexibility
The present invention relates to a polyethylene composition comprising a base resin which comprises (a) an ethylene homo- or copolymer fraction (A); and (b) an ethylene homo- or copolymer fraction (B), wherein (i) fraction (A) has a lower weight average molecular we...
01/03/2012
8079747Counter-rotating twin screw extruder
A screw extruder having a body forming a chamber of two barrels housing two counter-rotating axis-parallel rotors, a supply port for the material to be mixed in the chamber at one end of the body, a discharge port for discharging the mixed material at the other end ...
12/20/2011
8063148Antiblocking agent using crosslinkable silicon-containing polyolefin
The present invention relates to a polyolefin composition comprising an olefin homo- or copolymer (A) in an amount of 90 wt. % or more, and an olefin homo- or copolymer (B) comprising hydrolysable silicon-containing groups, wherein olefin homo- or copolymer (B) is p...
11/22/2011
8058336Flame retardant polymer composition comprising polyolefin with high molecular weight distribution
The present invention relates to a flame retardant polymer composition, comprising (A) a polyolefin comprising a polyolefin with a molecular weight distribution Mw/Mn>20, (B) a silicone-group containing compound, and (C) an inorganic filler mat...
11/15/2011
8044160Polyethylene composition for injection molded caps and closure articles
The present invention relates to a multimodal polyethylene composition wherein (i) the composition has an MFR2 of 0.1 to 100 g/10 min, (ii) the shear thinning index SHI(1,100) and the log MFR2 of the composition satisfy the following...
10/25/2011
8030403Transparent polypropylene composition
The present invention relates to a composition, in particular to a polypropylene composition, and articles thereof, having an optimal balance between mechanical properties and transparency and thus the composition is particular suitable for packaging applications.
10/04/2011
8017710Crosslinkable high pressure polyethylene composition, a process for the preparation thereof, a pipe and a cable prepared thereof
The present invention relates to a crosslinkable high pressure polyethylene composition containing ethylene silane copolymer resin having a content of silane of about 0.1 to 10 weight % and at least one silanol condensation catalyst. The invention further relates to...
09/13/2011
8017704Process for the production of propylene copolymers using a prepolymerised catalyst
The present invention relates to a process for the production of propylene copolymers wherein in a first step an olefin polymerization catalyst comprising a solid catalyst component is subjected to a prepolymerization reaction in a...
09/13/2011
8014980Method for simulating deviations in surface appearance of plastics parts
A forming process of plastic parts is simulated. The position and time of plastics particles which exceed at least one defined critical limit are detected. The final positions of particles in the surface layer of the plastics part are computed. The positions of the ...
09/06/2011
7998894Ligand modified Ziegler-Natta catalyst for olefin (co-)polymerization
The present invention relates to a Ziegler-Natta catalyst comprising a solid, ligand-modified catalyst component formed at least from (a) a compound of Group 1 to 3 of the Periodic Table (IUPAC), (b) a transition m...
08/16/2011
7956148Process for the preparation of polypropylene
The present invention relates to a process for the preparation of polypropylene using a catalyst system of low porosity, the catalyst system comprising an asymmetric catalyst, wherein the catalyst system has a porosity of less than 1.40 ml/g. ...
06/07/2011
7947783Polyethylene composition for injection moulding with improved stress crack/stiffness relation and impact resistance
The present invention relates to a polyethylene composition wherein (i) the composition has an MFR2 of 0.05 to 100 g/10 min, (ii) the environmental stress crack resistance ESCR measured in hours according to ASTM 1693, condition B and E-modulus EM measure...
05/24/2011
7923511Polypropylene compositions
A polymer composition having (i) 0.01 to 50% wt (e.g. 0.05 to 15% wt) of a propylene polymer with a polymeric nucleating agent is disclosed. Preferably, the agent contains vinyl compound units and (ii) a heterophasic propylene polymer which includes less (or no) pol...
04/12/2011
7915367Process for the manufacture of branched polypropylene
A process for manufacturing a branched polypropylene, said branched polypropylene having a branching index g′ of less than 1.00, the process comprising the step of polymerizing propylene and optionally one or more other comonomers under non-supercritical condition...
03/29/2011
7914899Electrical insulation film
Certain embodiments of the present technology provide a capacitor film comprising a polypropylene material. The capacitor film comprises xylene solubles of at least 0.5 percent by weight. In certain embodiments the xylene solubles are in a range of 0.5 to 1.5 percen...
03/29/2011
7902108Preparation of olefin polymerization catalyst component
A process for producing a Gp 2/transition metal olefin polymerisation catalyst component, in which a Gp 2 metal complex is reacted with a transition metal compound so as to produce an oil-in-oil emulsion, the disperse phase containing the preponderance of the Mg bei...
03/08/2011
7893132Power or communications cable with flame retardant polymer layer
The present invention in a first embodiment relates to a conduit or automotive wire consisting of an inner conductor core surrounded by a flame retardant layer made of a polymer composition in a continuous process which composition comprises (A) an olefin homo- and/...
02/22/2011
7875691Polyethylene composition with improved stress crack resistance/stiffness relation for blow moulding
The present invention relates to a polyethylene composition wherein (i) the composition has an MFR2 of 0.05 to 100 g/10 min, (ii) the environmental stress crack resistance ESCR measured according to the FNCT at 12 MPa and 23° C. in hours and the E-modulus EM measur...
01/25/2011
7851567Process for polymerizing olefins in the presence of an olefin polymerization catalyst
The present invention relates to a process for the preparation of multimodal ethylene homo- or copolymers in at least two stages, the process comprising preparation of a first ethylene homo- or copolymer fraction in a loop reactor in slurry phase, preparation of a s...
12/14/2010
7842772Stabilization of cross-linked silane group containing polymers with phenomic stabilizers
The present invention relates to a composition for cross-linking and stabilization of a polymer containing hydrolysable silane groups comprising a sulphonic acid as a silanol condensation catalyst characterized in that it comprises a stabilizer which is neutral or a...
11/30/2010
7834115Method for preparing an ethylene-silane copolymer
The present invention relates to an improved method for preparing an ethylene-silane copolymer comprising hydrolysable silane groups by radical-initiated polymerisation of ethylene and an olefinically unsaturated silane compound, such as vinyl trimethoxysilane (VTMS...
11/16/2010
7834094Alpha-olefin homo-or copolymer compositions
The invention is directed an alpha-olefin homo- or copolymer composition comprising at least one (i) alpha-olefin homo- or copolymer component, wherein the alpha-olefin homo- or copolymer composition comprises a decreased amount of C6-C15-oligomers. ...
11/16/2010
7820773Olefin polymerisation catalyst
The present invention relates to particulate olefin polymerization catalyst components comprising an alkaline earth metal, a compound of a transition metal and an electron donor, characterized in that the catalyst particle size distribution of the catalyst component...
10/26/2010
7816465Process for producing polyethylene
Process and apparatus for continuously producing olefin polymers in a slurry phase reactor in a hydrocarbon diluent or liquid monomer. The process comprises continuously withdrawing from the slurry phase reactor a polymer slurry containing polymer and a fluid phase,...
10/19/2010
7812102Method and apparatus for discharging polymerization reactors
A method and an apparatus of discharging polymer from a continuously operated gas phase reactor, wherein at least one monomer is polymerized in a bed containing active catalyst formed by catalyst and polymer particles suspended in a fluid, the bed defining a fluidiz...
10/12/2010
7812094Polymer blend
The invention relates to a polymer blend suitable for the production of film, said polymer blend comprising at least (1) a multimodal high density polyethylene (HDPE) composition and (2) a low density polyethylene (LDPE) polymer, a linear low density polyethylene (L...
10/12/2010
7803860Polymer compositions having improved wet ageing properties
The present invention relates to a crosslinkable polymer composition, comprising (i) a polyolefin, (ii) a polar copolymer, and (iii) a glycerol ester compound. ...
09/28/2010
7799435Extrusion coating polyethylene
The present invention relates to a polymer composition with good chemical properties and barrier properties being multimodal and comprising a polymer (A) having a weight average molecular weight of lower than 6000 g/mol and a polyolefine (B) having a higher weight a...
09/21/2010
7799397Pressure pipes
A pressure pipe with increased long-term pressure resistance is comprised of a polypropylene composition. The polypropylene composition is comprised of a polyproyplene copolymer which is at least partially crystallised in the β-modification. ...
09/21/2010
7786204Propylene polymer composition
A propylene polymer composition having a high impact strength and a high stiffness for the manufacture of parts having an excellent surface quality comprising A) 70 to 98 wt.-% of a heterophasic propylene copolymer with ethylene or an alpha-olefin with ...
08/31/2010
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