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1.发明授权POLYMERISATIONSKATALYSATOR ZUR HERSTELLUNG VON POLYOLEFINEN MIT HERVORRAGENDEN EIGENSCHAFTSKOMBINATIONEN 有权用于制造具有突出的特征组合的聚烯烃聚合催化剂
公开(公告)号：EP1290042B1
公开(公告)日：2004-12-01
申请号：EP01940468.0
申请日：2001-05-14
发明人： MIHAN, Shahram , LUX, Martin , ROHDE, Wolfgang , DECKERS, Andreas , KÖLLE, Peter , VOGT, Heinz
摘要： The invention relates to a method for producing a catalyst used for polymerizing olefins. The inventive method comprises the following steps: a) producing a finely divided silica xerogel, b) loading said xerogel, starting from a solution of chromium trioxide or a chromium compound that is converted to chromium trioxide under the conditions of step c), with chromium, and c) activating the resulting product in a water-free gas flow that contains oxygen in a concentration of more than 10 % by volume at a temperature of from 400 to 1100 °C, and doping the product in step b) or in step c) with a fluorinating agent. The invention further relates to a catalyst used for polymerizing olefins that is obtained according to the inventive method and to a method for polymerizing olefins according to which an olefin or an olefinic mixture is polymerized in the presence of a catalyst, using an inventive catalyst.
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公开(公告)号：EP1012193B1
公开(公告)日：2002-07-17
申请号：EP98946384.9
申请日：1998-08-19
CPC分类号： C08F10/00 , C08F4/63908 , C08F4/63916 , C08F4/63922 , C08F110/02 , C08F210/16 , Y10S526/943 , C08F4/63912 , C08F2500/12 , C08F2500/03
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公开(公告)号：EP0981551B1
公开(公告)日：2002-07-03
申请号：EP98921488.7
申请日：1998-04-24
CPC分类号： C08F10/00 , C08F4/6592 , C08F4/65925 , C08F4/65927 , C08F110/02 , Y10S526/943 , C08F4/65908 , C08F2500/12 , C08F2500/03 , C08F2500/23
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4.发明公开
公开(公告)号：EP1210176A1
公开(公告)日：2002-06-05
申请号：EP00967636.2
申请日：2000-08-31
发明人： DE LANGE, Paulus , FUNK, Guido , DECKERS, Andreas , KÖLLE, Peter
CPC分类号： C08F10/02 , B01J23/26 , B01J37/0203 , C08F210/16 , C08F4/24 , C08F4/025 , C08F210/14 , C08F2500/12 , C08F2500/13
摘要： The invention relates to a method for producing supported chrome catalysts for the polymerisation of olefins by loading a xerogel carrier with chrome by mixing the xerogel carrier with a volume of a 0.025 to 15 wt. % solution of a chrome compound or with a volume of a 0.025 to 7.8 wt. % Cr-containing solution which is essentially converted into a chromium(VI) compound when said solution is heated in a water-free flow of gas under oxidising conditions to temperatures ranging from 300 to 1,100 °C over a period of 10 to 1,000 min, whereby the xerogel carrier is mixed in a solvent which contains not more than 20 wt. % water. The xerogel is loaded by subsequently vaporising the solvent, whereby the volume of the chromium salt solution used is smaller than the pore volume of the xerogel carrier.
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5.发明公开VERFAHREN ZUM TROCKNEN UND ENTGASEN VON POLYOLEFINEN UND NACH DIESEM VERFAHREN HERGESTELLTES POLYETHYLEN 有权干燥方法德加乙烯共聚物，并通过这种方法制备乙烯共聚物
公开(公告)号：EP1187855A1
公开(公告)日：2002-03-20
申请号：EP00931189.5
申请日：2000-05-11
发明人： WITT, Michael , DE LANGE, Paulus , PERNER, Thomas , DECKERS, Andreas , EVERTZ, Kaspar , LILGE, Dieter
CPC分类号： C08F6/005 , C08F210/16 , C08F210/14 , C08F2500/12 , C08F2500/13
摘要： The invention relates to a method for drying and degassing polyolefins. The polymerisation matter leaving a polymerisation reactor is contacted with a degassing medium and relaxed at the same time. According to the invention, the monomer to be polymerised is used as the degassing medium. Said monomer flows through a relaxation container, especially in a cycle process, and is preferably enriched with ethylene or other low-boiling olefins in an amount ranging from 0 to 100 mol % in relation to the entire amount of the cycle gas. Polymerisation is carried out in the relaxation container in an amount of up to 10 % in relation to the entire polymerisation conversion.
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公开(公告)号：EP1171474A1
公开(公告)日：2002-01-16
申请号：EP00918794.9
申请日：2000-03-14
IPC分类号： C08F2/00 , C08F210/16
CPC分类号： C08F210/16 , C08F2/002 , C08F210/14 , C08F2500/12 , C08F2500/07 , C08F210/08
摘要： The invention relates to a method for producing an ethylene-based copolymer by means of continuous copolymerisation of ethylene and a comonomer in a reactor, in the presence of a catalyst. In a first step of the copolymerisation process, a mixture containing ethylene and a comonomer is introduced into the reactor in set quantities and/or produced in the reactor, the composition of this mixture being such that a deposit containing a copolymer separates in the reactor and in a second step, the concentration of the comonomer in the added mixture and/or in the mixture produced in the reactor is reduced and/or the concentration of the ethylene in the added mixture and/or in the mixture produced in the reactor is increased to the extent that the deposit can be partially or completely removed from the reactor. The inventive method has the advantage that the production of the copolymer does not have to be interrupted while the reactor is being cleaned.
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7.发明授权OPTIMIERTES VERFAHREN ZUR HERSTELLUNG VON KATALYSATORTRÄGERN AUF DER BASIS VON KIESELGEL SOWIE VON KIESELGEL-GETRÄGERTEN CHROMKATALYSATOREN 有权增强的方法制造用催化剂，基于媒体的硅胶和二氧化硅凝胶支式镀铬催化剂
公开(公告)号：EP1210376B1
公开(公告)日：2004-12-29
申请号：EP00965918.6
申请日：2000-09-05
发明人： DE LANGE, Paulus , FUNK, Guido , DECKERS, Andreas , KÖLLE, Peter
IPC分类号： C08F4/24 , C01B33/193
CPC分类号： C08F10/00 , B01J21/08 , B01J37/0072 , B01J37/036 , C08F4/02 , C08F4/24
摘要： The invention relates to a catalyst support and a method for the production of said catalyst support comprising: a) production of a 10 to 25 weight % solid (calculated as SiO2) containing silicic acid-hydro gels whose particles are essentially sphere-shaped; b) extraction of the hydrogel-particles using alcohol until at least 60 % of the water contained in the hydrogel is removed, c) drying the hydrogel so obtained, at a temperature of ≥ 160 °C at normal pressure and subsequent treatment of said hydrogel with an inert carrier gas until the remaining alcohol content is less than 10 weight % (xerogel-formation); d) adjustment of said xerogel particle size so obtained to the desired particle size, whereby the hydrogel particle have a particle size of ≥ 8 mm prior to extraction. The invention also relates to a catalyst and a method for the production ofsaid catalyst by loading the catalyst support with chromium compounds. The invention further relates to a method for the production of polyolefins using said catalyst.
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公开(公告)号：EP1141118B1
公开(公告)日：2004-12-22
申请号：EP99948992.5
申请日：1999-10-14
发明人： DE LANGE, Paulus , DECKERS, Andreas , KESSLER, Thomas , ROHDE, Wolfgang , BLÜMEL, Thomas , LUX, Martin
CPC分类号： C08L23/0815 , C08L23/12 , C08L2205/02 , C08L2314/02 , C08L2666/04
摘要： Bi-modal polyethylene blends made from a high-molecular ethylene copolymer and a low-molecular ethylene homopolymer or copolymer with an MFR 190/21.6 of4 g/10 min, a density of 0.94.97 g/cm3, an ESCR > 150h and a blend mixture quality of less than 3 measured according to ISO 13949. The invention also relates to methods for the production of polyethylene blends by means of fusion and homogenization in a mixing unit and discharge via a gear pump. The invention further relates to the use of said blends in the production of shaped bodies, especially hollow bodies and pressure pipes.
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9.发明授权
公开(公告)号：EP1218102B1
公开(公告)日：2004-06-02
申请号：EP00960568.4
申请日：2000-08-31
CPC分类号： C08F10/02 , B01J23/26 , C08F110/02 , C08F4/24 , C08F2/14 , C08F4/025 , C08F2500/12 , C08F2500/18
摘要： The invention relates to a method for producing Phillips catalysts. According to said method, an oxidic support material in a suspension is treated with a chromium salt solution and then after the solvent has been removed, calcined in an oxygenous atmosphere at temperatures above 300 °C. After calcination, the oxidic support material and/or the catalyst is/are reduced until an average granular size of
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10.发明公开
公开(公告)号：EP1255784A1
公开(公告)日：2002-11-13
申请号：EP01915205.7
申请日：2001-02-08
发明人： MÄHLING, Frank-Olaf , DECKERS, Andreas , LITTMANN, Dieter , SUTORIS, Heinz, Friedrich , EVERTZ, Kaspar
IPC分类号： C08F210/02 , C08F297/08 , C08F10/02 , B01D3/00
CPC分类号： C08F297/08 , C08F110/02 , C08F2/40 , C08F2/00 , C08F4/34 , C08F2/005 , C08F2500/26
摘要： The invention relates to a method for polymerizing or copolymerizing ethylenically unsaturated monomers in the presence of radically decomposing polymerization initiators in a continuously operating polymerization device. Said polymerization device is composed of a fresh gas supply, a pre-compressor, a post-compressor, a reactor, a pressure maintaining valve, of a high-pressure circuit, which is provided with a high-pressure product separator and with a high-pressure circuit gas return, and of a product valve and a low-pressure circuit, which is provided with a low-pressure product separator and with a low-pressure circuit gas return. The inventive method is characterized in that nitrogen monoxide or oxygen is added in a dosed manner as an inhibitor into the high-pressure circuit, into the low-pressure circuit and/or into the pre-compressor.
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