公开(公告)号：US20040087743A1

公开(公告)日：2004-05-06

申请号：US10468978

申请日：2003-08-22

Inventor： Xinlai Bai ,  Maria A Apecetche ,  Kevin J Cann ,  David L Ramage ,  Natarajan Muruganandam ,  Ardenhu Sen ,  Matthew J Fedec ,  Woo Min Song ,  David M Rebhan ,  Albert L Widmar

IPC: C08F002/34

CPC classification number: C08F210/18 ,  C08F4/65916 ,  C08F4/6592 ,  C08F2/34 ,  C08F4/65912 ,  C08F210/06 ,  C08F2500/25 ,  C08F2500/17 ,  C08F2500/18 ,  C08F2500/24

Abstract: A process for producing polymer particles in a gas phase polymerization reaction using a group 4 metal complex containing delocalized null-electrons and optionally a flow aid.

Abstract translation: 使用含有离域π电子的组4金属络合物和任选的流动助剂在气相聚合反应中制备聚合物颗粒的方法。

公开(公告)号：US20040054099A1

公开(公告)日：2004-03-18

申请号：US10398161

申请日：2003-09-17

Inventor： Christine Chabrand ,  Muriel Esteban ,  Caroline Mladenov

IPC: C08F002/34

CPC classification number: C08F10/00 ,  C08F210/16 ,  Y10S526/901 ,  C08F2/34 ,  C08F4/6493 ,  C08F2/002 ,  C08F210/14 ,  C08F2500/12

Abstract: The present invention relates to a process for the gas-phase (co-)polymerisation of olefins in a fluidised bed reactor using a Ziegler-Natta type catalyst characterised in that the polymerisation is performed in the presence of an additive.

Abstract translation: 本发明涉及使用齐格勒 - 纳塔型催化剂在流化床反应器中使烯烃气相（共）聚合的方法，其特征在于在添加剂存在下进行聚合。

公开(公告)号：US20010019706A1

公开(公告)日：2001-09-06

申请号：US09818915

申请日：2001-03-28

Applicant: Idemitsu Petrochemical Co., Ltd.

Inventor： Hideki Satou ,  Youichi Matsuo ,  Itaru Matsuhiro

IPC: C08F002/34 ,  C08F010/00

CPC classification number: B01J8/1809 ,  B01J2208/00256 ,  B01J2208/00274 ,  B01J2219/00006 ,  C08F10/00 ,  C08F110/02 ,  C08F110/06 ,  C08F210/06 ,  C08F2/001 ,  C08F2/34 ,  C08F210/08 ,  C08F210/16 ,  C08F2500/01

Abstract: The present invention is directed to a method for polymerizing olefins in a multi-stage polymerization apparatus including a gas-phase polymerization reactor in a subsequent stage. By use of the present method, the composition of gas in the gas-phase reactor is easily adjusted, and moreover, a polymer having an intended composition is produced in a consistent manner. In one aspect, the method for polymerizing olefins is performed in successive, multiple stages by use of a plurality of polymerization reactors disposed in series which include at least one gas-phase polymerization reactor after a first reactor, wherein a multi-component gas is removed from a gas-phase reactor and pressurized and/or cooled to thereby liquefy a portion of the gas; at least a portion of gas is discharged; and the remaining gas and the liquid are returned to the gas-phase reactor.

公开(公告)号：US20020091208A1

公开(公告)日：2002-07-11

申请号：US09985818

申请日：2001-11-06

Inventor： Gacem Benazouzz ,  Michel Camoin ,  Laurent Coupier ,  Jean-Pierre Isnard ,  Frederic Robert Marie Michel Morterol ,  John Paul McNally ,  Renaud Viguier

IPC: C08F002/34

CPC classification number: C08F10/00 ,  C08F210/16 ,  C08F2/005 ,  C08F2/40 ,  C08F210/14 ,  C08F2500/12

Abstract: A process for the gas-phase (co-)polymerisation of olefins in a fluidised bed reactor using a metallocene catalyst. The polymerisation is performed in the presence of a process aid additive.

Abstract translation: 使用茂金属催化剂在流化床反应器中使烯烃气相（共）聚合的方法。 在加工助剂添加剂的存在下进行聚合。

公开(公告)号：US20010012497A1

公开(公告)日：2001-08-09

申请号：US09832420

申请日：2001-04-10

Applicant: Final Research, S.A.

Inventor： Guy Debras

IPC: C08F002/34 ,  C08F010/02

CPC classification number: C08F210/16 ,  B01J8/24 ,  B01J19/242 ,  B01J19/2435 ,  Y10S526/901 ,  Y10S526/904 ,  C08F4/22 ,  C08F4/69

Abstract: A process of producing polyethylene, the process comprising copolymerizing ethylene and an alpha-olefinic comonomer comprising from 3 to 8 carbon atoms in the presence of a chromium-based catalyst in a main polymerization reactor and, in a gas-phase preliminary reactor upstream of the main polymerization reactor, chemically treating the chromium-based catalyst with at least one treatment agent prior to introduction of the catalyst into the main polymerization reactor and releasing from the preliminary reactor waste gases produced during the chemical treatment. An apparatus for producing polyethylene, the apparatus comprising a main reactor having an inlet for receiving gaseous olefin monomer and an outlet for outputting polyethylene, and a preliminary reactor connected to a second inlet of the main reactor, the preliminary reactor being arranged to be operable in the gas phase and having at least one respective inlet for receiving a solid catalyst and at least one treatment agent and a respective outlet for releasing waste gases from the preliminary reactor.

Abstract translation: 一种生产聚乙烯的方法，该方法包括在主聚合反应器中的铬基催化剂存在下，在乙烯和含有3-8个碳原子的α-烯烃共聚单体之间共聚，在气相预备反应器 主要聚合反应器，在将催化剂引入主聚合反应器之前用至少一种处理剂对铬基催化剂进行化学处理，并从预处理反应器中释放在化学处理期间产生的废气。 一种用于生产聚乙烯的设备，该设备包括具有用于接收气态烯烃单体的入口和用于输出聚乙烯的出口的主反应器，以及连接到主反应器的第二入口的预反应器，该预反应器被设置为可操作 气相，并具有用于接收固体催化剂的至少一个相应的入口和至少一个处理剂和用于从预备反应器释放废气的相应出口。

公开(公告)号：US20020173599A1

公开(公告)日：2002-11-21

申请号：US09735811

申请日：2000-12-13

Inventor： Mark Gregory Goode ,  Clark Curtis Williams ,  Timothy Roger Lynn ,  Robert Converse Brady III ,  Jody Michael Moffett

IPC: C08F002/34 ,  B01J035/08 ,  C08F002/00 ,  C08G085/00 ,  B01J031/00 ,  C08F004/44

CPC classification number: C08F10/00 ,  B01J8/004 ,  B01J8/1827 ,  B01J19/26 ,  B01J2208/00017 ,  B01J2208/00539 ,  B01J2208/00752 ,  C08F4/65912 ,  C08F4/6592 ,  C08F10/02 ,  C08F210/06 ,  C08F210/16 ,  Y10S526/901 ,  Y10S526/943 ,  C08F2/34 ,  C08F4/65927 ,  C08F210/08 ,  C08F2500/12 ,  C08F2500/15 ,  C08F210/14

Abstract: The present invention teaches the use of particular soluble metallocene catalysts to produce stereoregular polymers in gas phase polymerizations wherein the catalysts are fed into a particle lean zone in the reactor. The metallocenes catalysts are bridged bis-(substituted indenyl) compounds.

Abstract translation: 本发明教导了使用特定的可溶性茂金属催化剂在气相聚合中产生立体规则聚合物，其中将催化剂进料到反应器中的贫灰区。 金属茂催化剂是桥连双（取代茚基）化合物。

公开(公告)号：US20010049423A1

公开(公告)日：2001-12-06

申请号：US09313601

申请日：1999-05-18

Inventor： DUAN-FAN WANG ,  RONALD STEVEN EISINGER

IPC: C08F002/34

CPC classification number: B01J8/1818 ,  B01J8/18 ,  B01J19/14 ,  B01J2208/00637 ,  B01J2208/00654 ,  B01J2208/00805 ,  B65G53/22 ,  C08J3/00

Abstract: There is provided a bulk handling method for maintaining granular material in a free-flowing state in a vessel during storing, transporting, or while in an idle mode in a fluidized-bed reactor or purger.

Abstract translation: 本发明提供了在流化床反应器或净化器中储存，运输或处于空闲模式时将容器中的颗粒状材料保持在容器内的大量处理方法。