Abstract:
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°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).
Abstract:
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 MgR 1 R 2 ; (b) contacting the product obtained in step (a) with modifying compounds (A) and/or (B) and/or (C), wherein: (A) is an 4-amino-pent-3-en-2-one; (B) is a compound having the general formula R 11 f (R 12 O) g SiX h , (C) is a compound having the general formula (R 13 O) 4 M, and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX 4 , 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.
Abstract translation:本发明涉及制备适用于生产聚乙烯及其共聚物的固体催化剂组分的方法,所述方法包括以下步骤:(a)使具有羟基的脱水载体与镁化合物 具有通式MgR 1 1 R 2 2; (b)使步骤(a)中得到的产物与改性化合物(A)和/或(B)和/或(C)接触,其中:(A)为4-氨基 - 戊-3-烯-2-酮 一; (B)是具有通式R 11 R 12(R 12 O)g SiX
Abstract:
The invention relates to a pipe comprising polyethylene or a polyethylene composition comprising polyethylene and carbon black, wherein the polyethylene is produced in the presence of a solid catalyst component and a co-catalyst, wherein the solid catalyst component is prepared by a process comprising the steps of: (a) contacting a dehydrated support having hydroxyl groups with a magnesium compound having the general formula MgR 1 R 2 , wherein R 1 and R 2 are the same or different and are independently selected from the group comprising an alkyl group, alkenyl group, alkadienyl group, aryl group, alkaryl group, alkenylaryl group and alkadienylaryl group; (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 11 f(R 12 O) g SiX h , wherein f, g and h are each integers from 0 to 4 and the sum of f, g and h is equal to 4 with a proviso that when h is equal to 4 then modifying compound (A) is not an alcohol, Si is a silicon atom, O is an oxygen atom, X is a halide atom and R 11 and R 12 are the same or different and are independently selected from the group comprising an alkyl group, alkenyl group, alkadienyl group, aryl group, alkaryl group, alkenylaryl group and alkadienylaryl group; (C) is a compound having the general formula (R 13 O) 4 M, wherein M is a titanium atom, a zirconium atom or a vanadium atom, O is an oxygen atom and R 13 is selected from the group comprising an alkyl group, alkenyl group, alkadienyl group, aryl group, alkaryl group, alkenylaryl group and alkadienylaryl group; and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX 4 , wherein Ti is a titanium atom and X is a halide atom, whereby the polyethylene has a molecular weight Mz+1 of at least 720,000 g/mol and less than 2,500,000 g/mol.
Abstract:
The invention is directed to a polyethylene composition comprising 20-90 wt% of a LLDPE A and 80-10 wt% of a LLDPE B, wherein i) LLDPE A is obtainable by a process for producing a copolymer of ethylene and another α-olefin in the presence of an Advanced Ziegler-Natta catalyst, ii) LLDPE B is obtainable by a process for producing a copolymer of ethylene and another α-olefin in the presence of a metallocene catalyst.
Abstract:
The invention relates to a polypropylene composition comprising a terpolymer composition comprising (A) a first terpolymer fraction containing propylene, ethylene and 1-hexene, wherein the first terpolymer fraction has a melt flow rate of 0.005 to 0.20 dg/min determined by ISO 1133-1:2011 (230°C, 2.16 kg) and (B) a second terpolymer fraction containing propylene, ethylene and 1-hexene, wherein the second terpolymer fraction has a melt flow rate of 0.30 to 70 dg/min determined by ISO 1133-1:2011 (230°C, 2.16 kg), wherein the first terpolymer fraction is prepared using a first set of reaction conditions, the second terpolymer fraction is prepared using a second set of reaction conditions and the first and second set of reaction conditions are different, wherein the polypropylene composition (i) has a melt flow rate of 0.10 to 0.70 dg/min determined by ISO 1133-1:2011 (230°C, 2.16 kg), (ii) has a content of ethylene derived units in the range from1.6 to 3.0 wt%; (iii) has a contentt of 1-hexene derived units in the range from 1.7 to 4.0 wt%; and (iv) has a ratio of the content of ethylene derived units to the content of 1-hexene derived units in the composition of at least 0.70.
Abstract:
The present invention relates to a procatalyst comprising the compound represented by formula A as an internal electron donor, Formula A wherein R is hydrogen or a methyl group, N is nitrogen atom; O is oxygen atom; and C is carbon atom. The present invention also relates to a process for preparing said polymerization procatalyst and to a polymerization catalyst system comprising said procatalyst, a co-catalyst and optionally an external electron donor. Furthermore, the present invention relates to a polyolefin obtainable by the process according to the present invention and to the use of the compound of formula A as in internal electron donor in catalysts for polymerization of olefins.
Abstract:
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 MgR 1 R 2 ; (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 11 f (R 12 O) g SiX h , (C) is a compound having the general formula (R 13 O) 4 M, and (c) contacting the product obtained in step (b) with a titanium halide compound having the general formula TiX 4 , 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.
Abstract translation:本发明涉及制备适用于生产聚乙烯及其共聚物的固体催化剂组分的方法,所述方法包括以下步骤:(a)使具有羟基的脱水载体与镁化合物 具有通式MgR 1 1 R 2 2; (b)使步骤(a)中获得的产物与改性化合物(A)和/或(B)和/或(C)接触,其中:(A)为至少一种含氧和/或氮的有机化合物; (B)是具有通式R 11 R 12(R 12 O)g SiX
Abstract:
The present invention is related to a method for producing a olefin polymerization catalyst component, which method comprises the steps of (a) halogenating a magnesium compound 5 of the formula MgR'R" wherein R' is an alkoxide or aryloxide group and wherein R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and a activator; to form a first intermediate product; (b) contacting the intermediate product with a mixture of a tetravalent titanium halide and an internal electron donor; wherein step (b) comprises two sub steps (b1) and (b2): (b1) contacting the first 10 intermediate product with a mixture of a tetravalent titanium halide and a first portion of an internal electron donor; to obtain a second intermediate product; and (b2) contacting the second intermediate product with a mixture of a tetravalent titanium halide and a second portion of an internal electron donor to obtain a third intermediate product; and (c) washing the third intermediate product with an inert hydrocarbon liquid to obtain a catalyst 15 component. With this novel and inventive method the properties of the polymer that is observed with the resulting procatalyst may be tuned.
Abstract:
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°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°C as determined by ASTM D3418-08 using a heating and cooling rate of 10°C/min.
Abstract:
The present invention relates to a process for the preparation of a procatalyst suitable for preparing a catalyst composition for olefin polymerization, said process comprising the steps of: Step A) providing or preparing a Grignard compound; Step B) contacting the Grignard compound with a silane compound to give a first intermediate reaction product being a solid support; Step C) activating said solid support, comprising two sub steps: Step C1) contacting the solid support obtained in step B) with at least one first activating compound and a second activating compound; and Step C2) a second activation step by contacting the activated solid support obtained in step C1) with an activating electron donor; to obtain a second intermediate reaction product; Step D) reacting the second intermediate reaction product obtained in step C) with a halogen-containing Ti- compound, optionally an activator and at least one internal electron donor in several sub steps to obtain said procatalyst. The invention moreover relates to a procatalyst, a catalytic system comprising said procatalyst and to a process to prepare polyolefins using said catalyst system and the polyolefins obtained therewith.