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11. 发明授权

US09109105B2 Process for preparing Ziegler-Natta produced polyethylene blends 有权
标题翻译：制备齐格勒 - 纳塔生产的聚乙烯共混物的方法
公开(公告)号：US09109105B2
公开(公告)日：2015-08-18
申请号：US14003214
申请日：2012-03-02
申请人： Daan Dewachter , Eric Damme
发明人： Daan Dewachter , Eric Damme
IPC分类号： C08L23/06 , C08L23/08
CPC分类号： C08L23/06 , C08L23/0815 , C08L2205/025 , C08L2207/062 , C08L2308/00 , C08L2314/02 , C08L2666/06
摘要： A process for preparing a multimodal polyethylene product with at least two different polyethylene resins can include producing a first polyethylene resin in the presence of a Ziegler-Natta catalyst in a reactor. The Ziegler-Natta catalyst used for the production of the first polyethylene resin has an average particle size (D50) of at most 15 μm. The HLMI of the first polyethylene resin is between 0.01 and 5 g/10 min. The process can include separately producing a second polyethylene resin in the presence of a Ziegler-Natta catalyst in a reactor. The MI2 of the second polyethylene resin is between 1 and 150 g/10 min. The process can include physically blending together the first and second polyethylene resins to produce a multimodal polyethylene product. The physical blending can be performed in a device for continuously melting and blending the first and second polyethylene resins.
摘要翻译：用至少两种不同聚乙烯树脂制备多峰聚乙烯产品的方法可包括在齐格勒 - 纳塔催化剂存在下，在反应器中制备第一种聚乙烯树脂。用于生产第一种聚乙烯树脂的齐格勒 - 纳塔催化剂具有至多15μm的平均粒度（D50）。第一聚乙烯树脂的HLMI为0.01至5g / 10min。该方法可以包括在齐格勒 - 纳塔催化剂存在下在反应器中单独生产第二聚乙烯树脂。第二聚乙烯树脂的MI2为1-150克/ 10分钟。该方法可以包括将第一和第二聚乙烯树脂物理混合在一起以产生多峰聚乙烯产品。物理混合可以在用于连续熔融和共混第一和第二聚乙烯树脂的装置中进行。

12. 发明授权

US08987389B2 Process for preparing polyolefins and use of antifouling agents therein 有权
标题翻译：制备聚烯烃及其中使用防污剂的方法
公开(公告)号：US08987389B2
公开(公告)日：2015-03-24
申请号：US13812781
申请日：2011-07-29
申请人： Daniel Siraux , Daan Dewachter
发明人： Daniel Siraux , Daan Dewachter
IPC分类号： C08F2/00 , C08F4/00 , C08F2/01 , B01J8/10 , B01J19/18 , C08F210/16 , C08F4/6592
CPC分类号： C08F210/02 , B01J8/10 , B01J19/1837 , B01J19/2455 , B01J2208/00707 , B01J2219/0004 , B01J2219/00247 , C08F2/01 , C08F4/6592 , C08F210/16 , C08F2410/02 , C08F2/005 , C08F2/14 , C08F210/14 , C08F2500/24
摘要： The present invention relates to a process of preparing a polyethylene in a loop reactor in the presence of antifouling agent comprising the steps of: a) feeding into said loop reactor diluent, monomers, optionally hydrogen, and optionally one or more co-monomers to produce a liquid phase; b) introducing antifouling agent into said loop reactor, c) introducing a catalyst into the liquid phase to produce a slurry; and d) polymerizing the monomers and optional co-monomers to form the polyethylene, characterized in that the time difference between introduction of the antifouling agent and introduction of the catalyst is at most 3 hours.
摘要翻译：本发明涉及一种在防污剂存在下在环管反应器中制备聚乙烯的方法，包括以下步骤：a）将所述环管反应器中的稀释剂，任选的氢和任选的一种或多种共聚单体进料到液相; b）将防污剂引入所述环管反应器中，c）将催化剂引入液相以产生浆料; 和d）聚合单体和任选的共聚单体以形成聚乙烯，其特征在于，引入防污剂和引入催化剂之间的时间差最多为3小时。

13. 发明申请

US20130131288A1 METHOD FOR PRODUCING POLYETHYLENE 有权
标题翻译：生产聚乙烯的方法
公开(公告)号：US20130131288A1
公开(公告)日：2013-05-23
申请号：US13812796
申请日：2011-07-29
申请人： Peter Stevens , Franky Fant , Daan Dewachter , Alain Brusselle
发明人： Peter Stevens , Franky Fant , Daan Dewachter , Alain Brusselle
IPC分类号： C08F2/01
CPC分类号： C08F2/01 , B01J8/226 , B01J19/1837 , B01J2219/00006 , C08F210/16 , C08F2410/03 , C08F2/14 , C08F210/14 , C08F2500/24 , C08F2500/05 , C08F2500/12
摘要： The present invention relates to a method for consecutively producing at least two different polyethylene resins in one slurry loop reactor, comprising producing a first polyethylene resin in the presence of a Ziegler-Natta and/or a Chromium catalyst, and consecutively producing a second polyethylene resin in the presence of a metallocene catalyst, characterized in that the ratio of the melt flow index of the first produced polyethylene resin to the melt flow index of the second produced polyethylene resin is at least 0.3.
摘要翻译：本发明涉及一种在一个浆料环流反应器中连续生产至少两种不同的聚乙烯树脂的方法，包括在齐格勒 - 纳塔和/或铬催化剂存在下制备第一种聚乙烯树脂，并连续生产第二种聚乙烯树脂在金属茂催化剂的存在下，其特征在于，第一制得的聚乙烯树脂的熔体流动指数与第二次生产的聚乙烯树脂的熔体流动指数的比率至少为0.3。

14. 发明授权

US08399543B2 Additivising carbon black to polymer powder 失效
标题翻译：将炭黑添加到聚合物粉末中
公开(公告)号：US08399543B2
公开(公告)日：2013-03-19
申请号：US12741448
申请日：2008-11-04
申请人： Daan Dewachter
发明人： Daan Dewachter
IPC分类号： C08J3/20
CPC分类号： C08J3/201 , B29C47/0004 , B29C47/0023 , B29C47/1027 , B29C47/1063 , B29C47/369 , B29K2023/06 , B29K2023/12 , B29K2105/0005 , B29K2707/04 , C08J3/226 , C08J2323/02 , C08J2323/04 , C08J2323/06 , C08J2323/10 , C08J2323/12 , C08J2423/00 , C08K3/04 , C08L23/02
摘要： The present invention concerns an improved method for introducing free carbon black additive into a polymer powder or fluff, and in particular into polyethylene powder.
摘要翻译：本发明涉及一种将游离炭黑添加剂引入聚合物粉末或绒毛中，特别是聚乙烯粉末的改进方法。

15. 发明申请

US20120264891A1 METHOD FOR PRODUCING A CATALYST SLURRY BLEND 失效
标题翻译：生产催化剂浆液混合物的方法
公开(公告)号：US20120264891A1
公开(公告)日：2012-10-18
申请号：US13514344
申请日：2010-12-17
申请人： Daan Dewachter , Martine Slawinski
发明人： Daan Dewachter , Martine Slawinski
IPC分类号： C08F2/01 , C08F210/02 , C08F110/02
CPC分类号： B01J8/0035 , B01J8/0015 , B01J8/228 , B01J2208/0061 , B01J2208/00769 , C08F10/02 , C08F110/02 , C08F210/16 , C08F2/01 , C08F2500/12 , C08F2500/03 , C08F2500/05
摘要： The present invention relates to a method for producing a catalyst slurry blend suitable for polymerizing ethylene in an ethylene polymerization loop reactor for obtaining an at least trimodal polyethylene product, comprising the steps of: transferring a first ethylene polymerization catalyst at a first mass flow rate to a mixing vessel, simultaneously transferring a second ethylene polymerization catalyst at a second mass flow rate to said mixing vessel, thereby in situ providing a catalyst slurry blend, wherein said second ethylene polymerization catalyst is different from the first ethylene polymerization catalyst, adjusting and monitoring said first and second mass flow rates, thereby obtaining said catalyst slurry blend at a concentration suitable for polymerizing ethylene, and feeding said catalyst slurry blend to an ethylene polymerization double loop reactor producing said at least trimodal polyethylene product.
摘要翻译：本发明涉及一种生产适用于在乙烯聚合反应器中聚合乙烯的催化剂浆料共混物的方法，用于获得至少三价聚乙烯产品，其包括以下步骤：将第一乙烯聚合催化剂以第一质量流量转移至混合容器，同时将第二乙烯聚合催化剂以第二质量流速转移到所述混合容器中，从而原位提供催化剂浆料共混物，其中所述第二乙烯聚合催化剂不同于第一乙烯聚合催化剂，调节和监测所述第一和第二质量流速，从而以适于聚合乙烯的浓度获得所述催化剂浆料共混物，并将所述催化剂浆料共混物供给到产生所述至少三价聚乙烯产品的乙烯聚合双环反应器中。

16. 发明申请

US20090326170A1 Process for Improving the Polymerization of Ethylene and One or More Optional Comonomer(s) in a Polymerization Loop Reactor 有权
标题翻译：改进聚合反应器中乙烯和一种或多种可选共聚单体聚合的方法
公开(公告)号：US20090326170A1
公开(公告)日：2009-12-31
申请号：US12295855
申请日：2007-04-03
申请人： Daan Dewachter
发明人： Daan Dewachter
IPC分类号： C08F2/01 , B01J19/00
CPC分类号： B01J8/08 , B01J8/007 , B01J19/18 , B01J2219/00094 , B01J2219/00164 , C08F10/02 , C08F110/02 , C08F210/16 , C08F2/001 , C08F2/14 , C08F210/14
摘要： The present invention relates to a process for improving the polymerization of ethylene and one or more optional co-monomer(s) in a polymerization loop reactor characterized in that said process comprises the step of controlling the hydrogen/monomer ratio along the path of the reactor by multiple, spatially separated, feeding of hydrogen along the path of the loop reactor. In particular, the invention provides a process for controlling, and preferably narrowing, the molecular weight distribution of the produced polymer particles. In another aspect, the invention relates to a polymerization loop reactor suitable for the polymerization process of ethylene and an optional olefin co-monomer, wherein the molecular weight distribution of the produced ethylene polymer can be controlled.
摘要翻译：本发明涉及在聚合反应器反应器中改进乙烯和一种或多种任选的共聚单体聚合的方法，其特征在于所述方法包括沿着反应器的路径控制氢/单体比例的步骤通过多个空间分离，沿着环管反应器的路径供给氢。特别地，本发明提供了一种控制所产生的聚合物颗粒的分子量分布并优选变窄的方法。另一方面，本发明涉及适用于乙烯和任选的烯烃共聚单体的聚合方法的聚合反应器反应器，其中可以控制所生产的乙烯聚合物的分子量分布。

17. 发明授权

US09574018B2 Method for producing polyethylene 有权
标题翻译：生产聚乙烯的方法
公开(公告)号：US09574018B2
公开(公告)日：2017-02-21
申请号：US13812796
申请日：2011-07-29
申请人： Peter Stevens , Franky Fant , Daan Dewachter , Alain Brusselle
发明人： Peter Stevens , Franky Fant , Daan Dewachter , Alain Brusselle
IPC分类号： C08F2/00 , C08F4/06 , C08F4/72 , C08F110/02 , C08G85/00 , C08F2/01 , B01J8/22 , B01J19/18 , C08F210/16
CPC分类号： C08F2/01 , B01J8/226 , B01J19/1837 , B01J2219/00006 , C08F210/16 , C08F2410/03 , C08F2/14 , C08F210/14 , C08F2500/24 , C08F2500/05 , C08F2500/12
摘要： The present invention relates to a method for consecutively producing at least two different polyethylene resins in one slurry loop reactor, comprising producing a first polyethylene resin in the presence of a Ziegler-Natta and/or a Chromium catalyst, and consecutively producing a second polyethylene resin in the presence of a metallocene catalyst, characterized in that the ratio of the melt flow index of the first produced polyethylene resin to the melt flow index of the second produced polyethylene resin is at least 0.3.
摘要翻译：本发明涉及一种在一个浆料环流反应器中连续生产至少两种不同的聚乙烯树脂的方法，包括在齐格勒 - 纳塔和/或铬催化剂存在下制备第一种聚乙烯树脂，并连续生产第二种聚乙烯树脂在金属茂催化剂的存在下，其特征在于，第一制得的聚乙烯树脂的熔体流动指数与第二次生产的聚乙烯树脂的熔体流动指数的比率至少为0.3。

18. 发明授权

US08946359B2 Process for preparing polyolefins 有权
标题翻译：聚烯烃的制备方法
公开(公告)号：US08946359B2
公开(公告)日：2015-02-03
申请号：US13812693
申请日：2011-07-29
申请人： Daniel Siraux , Aurélien Vantomme , Eric Damme , Daan Dewachter
发明人： Daniel Siraux , Aurélien Vantomme , Eric Damme , Daan Dewachter
IPC分类号： C08F2/00 , C08F2/01 , B01J4/00 , B01J8/00 , B01J19/18 , C08F210/16
CPC分类号： C08F2/01 , B01J4/001 , B01J8/007 , B01J19/1818 , B01J19/1837 , C08F210/16 , C08F2/005 , C08F2/14 , C08F210/14
摘要： The present invention relates to a process of preparing a polyolefin in a loop reactor by introducing anti-fouling agent through a sleeve provided around at least part of the shaft of the pump. Also, the invention relates to the use of anti-fouling agent to prevent or reduce fouling by feeding the anti-fouling agent against the impeller of the pump upon introduction to the loop reactor.
摘要翻译：本发明涉及一种在环管式反应器中制备聚烯烃的方法，该方法是通过在泵的至少一部分周围设置的套筒引入防污剂。此外，本发明涉及通过在将引入循环反应器之后将防污垢剂施加到泵的叶轮上来防止或减少结垢的用途。

19. 发明申请

US20130125996A1 Process for supplying catalyst to a polymerization reactor 有权
标题翻译：向聚合反应器供应催化剂的方法
公开(公告)号：US20130125996A1
公开(公告)日：2013-05-23
申请号：US13812713
申请日：2011-07-29
申请人： Daan Dewachter , Alain Brusselle
发明人： Daan Dewachter , Alain Brusselle
IPC分类号： F03B17/00
CPC分类号： F03B17/00 , B01J8/002 , B01J2208/00752 , C08F4/65916 , C08F10/00 , C08F210/16 , Y10S417/90 , Y10S526/919 , Y10T137/0318 , C08F2/14 , C08F2/01 , C08F210/14
摘要： The present invention relates to a method for feeding metallocene catalyst slurry to an olefin polymerization loop reactor (1) using a positive displacement device (5) positive displacement device comprising a first chamber and a second chamber, each chamber having an inlet and an outlet and each chamber comprising an ball arranged between the walls of said chamber, wherein said chambers are connected to each other by a pump chamber operably connected to a pump, wherein, the difference between the diameter of said ball and the diameter of said chamber is comprised between 5 to 200 times the average particle size (d50) of said catalyst.
摘要翻译：本发明涉及使用包括第一室和第二室的正位移装置（5）的正位移装置将茂金属催化剂浆料供给到烯烃聚合反应器（1）的方法，每个室具有入口和出口，每个室包括布置在所述室的壁之间的球，其中所述室通过可操作地连接到泵的泵室彼此连接，其中，所述球的直径和所述室的直径之间的差包括在所述催化剂的平均粒度（d50）为5〜200倍。

20. 发明申请

US20130123443A1 Process for preparing polyolefins and use of antifouling agents therein 有权
公开(公告)号：US20130123443A1
公开(公告)日：2013-05-16
申请号：US13812781
申请日：2011-07-29
申请人： Daniel Siraux , Daan Dewachter
发明人： Daniel Siraux , Daan Dewachter
IPC分类号： C08F2/01
CPC分类号： C08F210/02 , B01J8/10 , B01J19/1837 , B01J19/2455 , B01J2208/00707 , B01J2219/0004 , B01J2219/00247 , C08F2/01 , C08F4/6592 , C08F210/16 , C08F2410/02 , C08F2/005 , C08F2/14 , C08F210/14 , C08F2500/24
摘要： The present invention relates to a process of preparing a polyethylene in a loop reactor in the presence of antifouling agent comprising the steps of: a) feeding into said loop reactor diluent, monomers, optionally hydrogen, and optionally one or more co-monomers to produce a liquid phase; b) introducing antifouling agent into said loop reactor, c) introducing a catalyst into the liquid phase to produce a slurry; and d) polymerizing the monomers and optional co-monomers to form the polyethylene, characterized in that the time difference between introduction of the antifouling agent and introduction of the catalyst is at most 3 hours.

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