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WO/2010/089123A9 |
The present invention is directed to a propylene homo- or copolymer having a polydispersity index (Pl), determined according ISO 6721-1, of at least 7.0 Pa-1; and a tensile modulus, determined according to ISO 527-2, of at least 1600 MPa...
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WO/2010/110801A1 |
The invention relates to olefin oligomerization methods and methods for reducing/inhibiting fouling in olefin oligomerization reactions comprising: contacting, in an oligomerization reactor (e.g., under oligomerization conditions), an al...
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WO/2010/106888A1 |
A solid catalyst component for the polymerization of olefins, which is prepared by bringing (a) a solid component containing magnesium, titanium, a halogen, and an electron donor, (b) an aminosilane, and (c) at least one organosilicon co...
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WO/2010/107478A1 |
A method comprising (a) contacting a support and a chromium-containing compound to form chromium-containing support, (b) heat treating the chromium-containing support in an oxidizing atmosphere to form a treated support, (c) contacting t...
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WO/2010/104557A2 |
The present invention provides metal-containing sulfated activator-supports, and polymerization catalyst compositions employing these activator-supports. Methods for making these metal-containing sulfated activator-supports and for using...
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WO/2010/102163A2 |
The present invention relates to compositions and processes of making catalysts and polyolefins. More particularly, the invention relates to snap shut catalysts, processes for making the catalysts, processes for making polyolefins using ...
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WO/2010/098827A1 |
A polymeric resin having a density of greater than 0.960 g/cc, a melt index of from 1.3 g/10 min. to 2.8 g/10 min., a zero shear viscosity of from Ix 104 Pa*s to 1 x 105 Pa*s, a recoverable shear parameter of from 220 to 370, and a CY-a ...
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WO/2010/097352A1 |
Multi-stage polymerization process for the production of a multi-modal linear low density polyethylene in at least two staged reactors connected in series comprising at least (i) polymerizing in a first slurry phase stage ethylene monome...
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WO/2010/097351A1 |
Multi-stage polymerization process for the production of a multi-modal linear low density polyethylene in at least two staged reactors connected in series comprising at least (i) polymerizing in a first slurry phase stage ethylene monome...
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WO/2010/096445A2 |
This invention relates to ruthenium initiators for the ring-opening metathesis polymerization (ROMP) of cyclic olefins that are inactive at room temperature but activatable at elevated temperature (referred to as ("thermally switchable")...
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WO/2010/091825A1 |
Copolymer waxes, characterized by an iodine number of < 15, preferably < 13 g iodine/100 g, a viscosity at 100°C ranging between 200 and 4000 mPa*s, a dropping point ranging between 60 and 90°C, a ram penetration hardness ranging betwe...
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WO/2010/089121A1 |
The present invention is directed to a polypropylene composition comprising a propylene homo- or copolymer (A) with a polydispersity index (Pl), determined according ISO 6721-1, of at least 5.8 Pa-1; and an inorganic filler (B) in an amo...
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WO/2010/087111A1 |
A polypropylene resin pre-foamed particle characterized by comprising, as the base resin, a polypropylene resin satisfying the following requirements (a) to (c). This polypropylene resin pre-foamed particle can be molded under a not hig...
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WO/2010/086392A1 |
A method for transitioning between two different catalysts during a continuous olefin polymerizations, more specifically in the production of polypropylene homo- or copolymers in a continuous slurry/gas phase polymerization reaction with...
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WO/2010/087921A1 |
Nonwoven fabrics of fibers comprising one or more primary polypropylenes having a molecular weight distribution of less than 3.5 and a melt flow rate within the range from 5 to 500 dg/min, the fibers having an average diameter of less th...
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WO/2010/081685A1 |
Process for the preparation of ethylene homopolymers or copolymers in the presence of free-radical polymerization initiators at from 100°C to 350°C and pressures in the range of from 160 MPa to 350 MPa in a tubular reactor with at leas...
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WO/2010/082943A1 |
The present disclosure provides a polymerization process for the production of a high melt flow propylene impact copolymer. The process includes contacting an active propylene-based polymer having a melt flow rate greater than about 100 ...
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WO/2010/081684A1 |
Process for the preparation of ethylene homopolymers or copolymers in a high pressure reactor with at least two spatially separated initiator injection points by polymerizing ethylene and optionally further monomers in the presence of at...
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WO/2010/080106A1 |
The present invention provides a polymerization process which is conducted by contacting an olefin monomer and at least one olefin comonomer in the presence of hydrogen and a metallocene-based catalyst composition. Polymers produced from...
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WO/2010/080871A1 |
A polymerization process including: polymerizing at least one olefin to form an olefin based polymer in a gas phase polymerization reactor; and feeding at least one polysulfone additive system to the polymerization reactor, wherein the p...
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WO/2010/080870A2 |
A polymerization process is disclosed, including: polymerizing at least one olefin to form an olefin based polymer in a polymerization reactor; and feeding at least one ethyleneimine additive to the polymerization reactor. The ethyleneim...
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WO/2010/079701A1 |
Disclosed is a solid catalyst component for olefin polymerization that includes a solid component obtained by bringing (a) a magnesium compound, (b) a titanium halogen compound, and (c) an electron donor compound into contact. In the sol...
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WO/2010/078485A1 |
Disclosed are propylene-based polymer compositions and processes for producing same. Polymerization with an improved catalyst composition provides a propylene-based polymer with improved stiffness.
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WO/2010/076188A1 |
This invention relates to the synthesis of substituted tetrahydroindenyls and the use of the synthesised complexes in the homo- and co-polymerisation of ethylene and alpha-olefins.
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WO/2010/076285A1 |
A method for treating polymer particles with steam in a steaming vessel downstream a polymerization process, the method comprising contacting polymer particles with a counter-current flow of steam, wherein the flow rate of steam entering...
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WO/2010/077230A1 |
Certain metallocene compounds are provided that, when used as a component in a supported polymerization catalyst under industrially relevant polymerization conditions, afford high molar mass homo polymers or copolymers like polypropylene...
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WO/2010/078330A2 |
Disclosed are catalyst compositions having an external electron donor which includes one or more of the following compositions: a phosphite, a phosphonite, a pyrophosphite, and/or a diphosphazane. Ziegler-Natta catalyst compositions cont...
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WO/2010/077163A1 |
This invention relates to the synthesis of substituted tetrahydroindenyls and the use of the synthesised complexes in the homo- and co-polymerisation of ethylene and alpha-olefins.
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WO/2010/076289A1 |
A process for introducing a catalyst powder based on a titanium compound supported on magnesium halide into a gas-phase olefin polymerization reactor, characterized in that it comprises: (a) storing the catalyst powder under an atmospher...
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WO/2010/074073A1 |
Provided is an ethylene polymer composition which can be obtained with a solid-phase method such as solid-phase stretch forming, is suitable for producing a molded article having high strength, and has the following properties. This ethy...
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WO/2010/075349A1 |
A process for producing a heterophasic copolymer is provided. The process includes introducing an antifoulant to a second polymerization reactor which operates in series with a first polymerization reactor. The antifoulant may be a multi...
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WO/2010/074188A1 |
Disclosed is a light diffusion plate (3) which is formed from a propylene resin having a tacticity of not less than 95%. The light diffusion plate (3)is used in a surface light source device (1) which comprises a light source (2) that i...
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WO/2010/075111A2 |
This invention relates to an in-reactor polymer blend comprising: (a) a first ethylene- containing polymer having a density of greater than 0.90 g/cm3 and a Mw of more than 20,000 g/mol and (b) a second ethylene-containing polymer having...
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WO/2010/074233A1 |
A process for producing an α-olefin polymer, which comprises the step of polymerizing one or more C6-20 α-olefins using a catalyst including a specific transition metal compound. An α-olefin polymer having a viscosity suitable for lub...
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WO/2010/072367A1 |
A method for transitioning from a Ziegler-Natta to a Phillips catalyst system for the olefin polymerization reaction in one reactor, preferably a gas phase reactor, is described. The method comprises the steps of a) discontinuing a first...
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WO/2010/075173A1 |
The present invention is directed to copolymers, which are polymerization products of: (i) a monomer having alpha-olefinic functionality; (ii) a monomer different from (i) having active hydrogen functionality; and (iii) a monomer differe...
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WO/2010/075160A1 |
Disclosed herein are various methods and systems for gas and liquid phase polymer production. In certain embodiments, the methods comprise manipulating properties of polymers produced by adjusting the hydrogen feed rate.
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WO/2010/071798A1 |
A method for preparing a reactor for performance of a polymerization reaction, the method including providing at least one seed bed into the reactor; wherein the at least one seed bed includes at least one organometallic compound and pol...
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WO/2010/069527A1 |
Process for supportation of a catalyst system comprising at least two different active catalyst components on a support wherein in an earlier supportation step a first active catalyst component is applied to the support at a first predet...
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WO/2010/071099A1 |
A metallocene complex, which can uptake ethylene and an α-olefin more efficiently than the existing metallocene catalyst and by which a high-molecular weight rubber component can be polymerized, and a method for polymerizing an olefin. ...
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WO/2010/071653A1 |
The invention relates to high pressure tubular reactor olefin polymerization plants having improved specific energy consumption. The plants may be newly constructed or made by de- bottlenecking an existing plant. The tube of the tubular ...
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WO/2010/068045A2 |
The present invention relates to a hybrid supported metallocene catalyst and a method for preparing polyolefin polymers using the same. More specifically, the present invention provides: a hybrid supported metallocene catalyst comprising...
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WO/2010/063444A1 |
The invention is directed to a pelletized ethylene polymer having: • a density ≥ 953 kg/m3 and < 957 kg/m3 ( according to ISO1183) • a high-load melt index (HLMI) > 3 g/10 min and ≤ 12 g/10 min (according to ISO 1133; 190°C,21.6...
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WO/2010/063090A1 |
The addition of small amounts of surface charged clay to a gas phase polyolefin polymerization reactor in the presence of a chromium based catalyst or a single site catalyst including metallocene and constrained geometry catalysts can be...
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WO/2010/065359A1 |
Provided is a procatalyst composition containing a multiple internal electron donor with at least two components, one of which is a silyl ester. The other component of the mixed internal electron donor may be an electron donor component....
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WO/2010/063432A1 |
New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5s-1...
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WO/2010/065361A1 |
The present disclosure provides silyl esters and silyl diol esters suitable as internal electron donors in procatalysts for polymer production. Disclosed are procatalyst compositions formed from a procatalyst precursor and an internal el...
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WO/2010/063443A1 |
The invention is directed to a pelletized ethylene polymer having:. a density > 954 kg/m3 and ≤ 959 kg/m3 ( according to ISO 1183). a high-load melt index ≥ 1.7 g/10 min and ≤ 10 g/10 min (according to ISO 1133;190°C;21.6 kg)). an...
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WO/2010/060799A1 |
A process for the polymerization of one or more olefins under solution polymerization conditions to produce a polymeric solution, said process comprising contacting the produced polymeric solution with one or more antioxidant compounds b...
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WO/2010/060555A1 |
The invention pertains to a method for the preparation of ultra high molecular mass polyethylene by polymerization in suspension or in gas phase in the presence of a chromium catalyst sitting on an alumosilicate support material. The chr...
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