公开(公告)号：US5149738A

公开(公告)日：1992-09-22

申请号：US724805

申请日：1991-07-02

申请人： Kiu H. Lee ,  Frederick J. Karol ,  Sari B. Samuels

发明人： Kiu H. Lee ,  Frederick J. Karol ,  Sari B. Samuels

IPC分类号： C08F210/16 ,  C08F297/08

CPC分类号： C08F297/08 ,  C08F210/16

摘要： A process for the in situ blending of polymers comprising continuously contacting, under polymerization conditions, a mixture of ethylene and at least one alpha-olefin having at least 3 carbon atoms with a catalyst in at least two fluidized bed reactors connected in series, said catalyst comprising:(i) a complex consisting essentially of magnesium titanium, a halogen, and an electron donor;(ii) at least one activator compound for the complex having the formula AlR".sub.e X'.sub.f H.sub.g wherein X' is Cl or OR'"; R" and R'" are saturated aliphatic hydrocarbon radicals having 1 to 14 carbon atoms and are alike or different; f is 0 to 1.5; g is 0 or 1; and e+f+g=3; and(iii) a hydrocarbyl aluminum cocatalyst, the polmerization conditions being such that ethylene copolymer having a high melt index in the range of about 0.1 to about 1000 grams per 10 minutes is formed in at least one reactor and ethylene copolymer having a low melt index in the range of about 0.001 to about 1.0 gram per 10 minutes is formed in at least one other reactor, each copolymer having a density of about 0.860 to about 0.965 gram per cubic centimeter and a melt flow ratio in the range of about 22 to about 70, and being admixed with active catalyst.

摘要翻译： 一种用于原位共混聚合物的方法，包括在聚合条件下将至少一种具有至少3个碳原子的至少一种α-烯烃的混合物与至少两个串联连接的流化床反应器中的催化剂连续接触，所述催化剂 包括：（i）基本上由镁钛，卤素和电子给体组成的络合物; （ii）具有式AlR''EX'fHg的络合物的至少一种活化剂化合物，其中X'为Cl或OR“'; R“和R”'是具有1至14个碳原子的饱和脂族烃基，并且是相同或不同的; f为0〜1.5; g为0或1; 和e + f + g = 3; 和（iii）烃基铝助催化剂，所述聚合条件使得在至少一个反应器和具有低熔体指数的乙烯共聚物中形成具有约0.1-约1000克/ 10分钟范围内的高熔体指数的乙烯共聚物 在至少一个其它反应器中形成约0.001至约1.0克/ 10分钟的范围，每个共聚物的密度为约0.860至约0.965克/立方厘米，熔体流动比在约22至约 70，并与活性催化剂混合。

公开(公告)号：US5106927A

公开(公告)日：1992-04-21

申请号：US405286

申请日：1989-09-11

申请人： Mahmoud R. Rifi ,  Kiu H. Lee ,  Mark J. Kriss ,  Han-Tai Liu

发明人： Mahmoud R. Rifi ,  Kiu H. Lee ,  Mark J. Kriss ,  Han-Tai Liu

IPC分类号： C08F2/34 ,  C08F4/60 ,  C08F4/658 ,  C08F210/16 ,  C08F210/18

CPC分类号： C08F210/18 ,  Y10S526/901

摘要： A process for the production of EPDM comprising reacting ethylene, propylene, ethylidene norbornene, and hydrogen, in the gas phase, in a fluidized bed, under polymerization conditions, in the presence of a catalyst system comprising:(a) a titanium based catalyst having the formula Mg.sub.a Ti(OR).sub.b X.sub.c (ED).sub.d whereinR is an aliphatic or aromatic hydrocarbon radical having 1 to 14 carbon atoms or COR' wherein R' is an aliphatic or aromatic hydrocarbon radical having 1 to 14 carbon atoms;each OR group is alike or different;each X is independently chlorine, bromine, or iodineED is an electron donora is 0.5 to 56;b is 0, 1, or 2;c is 2 to 116; andd is greater than 1.5 a+2;(b) at least one modifier having the formula BX.sub.3 or AlR.sub.(3-b) X.sub.b wherein each R is alkyl or aryl and is alike or different, and X and b are as defined above for component (a),wherein components (a) and (b) are impregnated into an inorganic support; and(c) a hydrocarbyl aluminum cocatalyst with the following proviso:(i) the partial pressure of ethylene is in the range of about 10 to about 150 psi;(ii) the molar ratio of propylene to ethylene is in the range of about 1.5:1 to about 5:1;(iii) the molar ratio of hydrogen to ethylene is in the range of about 0.001:1 to about 0.1:1; and(iv) the amount of ethylidene norbornene is about 1.5 to about 15 percent by weight based on the weight of the fluidized bed.

公开(公告)号：US5100979A

公开(公告)日：1992-03-31

申请号：US624970

申请日：1990-12-10

申请人： Ronald S. Eisinger ,  Kiu H. Lee

发明人： Ronald S. Eisinger ,  Kiu H. Lee

IPC分类号： C08F2/34 ,  C08F210/16

CPC分类号： C08F210/16 ,  Y10S526/901

摘要： A process comprising contacting a mixture comprising ethylene and 1-octene in the gas phase, in a fluidized bed reactor, under polymerization conditions, with a catalyst system comprising:(a) the reaction product of a vanadium compound and an electron donor impregnated into an inorganic support;(b) a halocarbon promoter; and(c) a hydrocarbyl aluminum cocatalyst with the following proviso:(i) the partial pressure of ethylene is in the range of about 50 to about 90 psi;(ii) the partial pressure of 1-octene is in the range of about 1.5 to about 2.5 psi;(iii) the temperature in the reactor is in the range of about 5.degree. C. to about 20.degree. C. above the dew point of 1-octene;(iv) the molar ratio of 1-octene to ethylene is in the range of about 0.02:1 to about 0.04:1; and, optionally,(v) the superficial gas velocity is in the range of about 1.4 to about 2.7 feet per second.

摘要翻译： 一种方法，包括在气相中在流化床反应器中在聚合条件下使包含乙烯和1-辛烯的混合物与催化剂体系接触，所述催化剂体系包含：（a）钒化合物和电子给体的反应产物，其浸渍到 无机载体; （b）卤代烃促进剂; 和（c）烃基铝助催化剂，其具有以下条件：（i）乙烯的分压在约50至约90psi的范围内; （ii）1-辛烯的分压在约1.5至约2.5psi的范围内; （iii）反应器中的温度在1-辛烯露点以上约5℃至约20℃的范围内; （iv）1-辛烯与乙烯的摩尔比在约0.02:1至约0.04:1的范围内; 和（v）表观气体速度在约1.4至约2.7英尺/秒的范围内。

公开(公告)号：US5047468A

公开(公告)日：1991-09-10

申请号：US271639

申请日：1988-11-16

申请人： Kiu H. Lee ,  Frederick J. Karol ,  Sari B. Samuels

发明人： Kiu H. Lee ,  Frederick J. Karol ,  Sari B. Samuels

IPC分类号： C08F2/00 ,  C08F2/34 ,  C08F4/60 ,  C08F4/658 ,  C08F6/00 ,  C08F6/06 ,  C08F10/00 ,  C08F210/16 ,  C08F297/08 ,  C08L23/04 ,  C08L23/08

CPC分类号： C08F297/08 ,  C08F210/16

摘要： A process for the in situ blending of polymers comprising continuously contacting, under polymerization conditions, a mixture of ethylene and at least one alpha-olefin having at least 3 carbon atoms present in an amount of about 0.1 to 3.5 mole per mole of ethylene with a catalyst in at least two fluidized bed reactors connected in series, said catalyst comprising:(i) a complex consisting essentially of magnesium titanium, a halogen, and an electron donor;(ii) at least one activator compound for the complex having the formula A1R".sub.e X'.sub.f H.sub.g wherein X' is C1 or OR"'; R" and R"' are saturated aliphatic hydrocarbon radicals having 1 to 14 carbon atoms and are alike or different; f is 0 to 1.5; g is 0 or 1; and e+f+g=3; and(iii) a hydrocarbyl aluminum cocatalyst, the polymerization conditions being such that ethylene copolymer having a high melt index in the range of about 0.1 to about 1000 grams per 10 minutes is formed in at least one reactor and ethylene copolymer having a low melt index in the range of about 0.001 to about 1.0 gram per 10 minutes is formed in at last one other reactor, each copolymer having a density of about 0.860 to about 0.965 gram per cubic centimeter and a melt flow ratio in the range of about 22 to about 70, with the proviso that:(a) the mixture of copolymer of ethylene and active catalyst formed in one reactor in the series is transferred to the immediately succeeding reactor in the series; and(b) additionally hydrocarbyl aluminum cocatalyst is introduced into each reactor in an amount sufficient to restore the activity of the catalyst transferred from the preceding reactor.

公开(公告)号：US4994534A

公开(公告)日：1991-02-19

申请号：US413704

申请日：1989-09-28

申请人： Seung J. Rhee ,  Edgar C. Baker ,  David N. Edwards ,  Kiu H. Lee ,  John H. Moorhouse ,  Leonard S. Scarola ,  Frederick J. Karol

发明人： Seung J. Rhee ,  Edgar C. Baker ,  David N. Edwards ,  Kiu H. Lee ,  John H. Moorhouse ,  Leonard S. Scarola ,  Frederick J. Karol

IPC分类号： C08F2/34 ,  C08F2/44 ,  C08F32/00 ,  C08F36/00 ,  C08F136/06 ,  C08F210/16 ,  C08F210/18 ,  C08F232/08 ,  C08F293/00 ,  C08F297/08

CPC分类号： C08F2/44 ,  C08F210/18 ,  B29K2019/00 ,  B29K2021/00 ,  B29K2023/16 ,  B29K2105/16 ,  Y10S526/901

摘要： A process for producing sticky polymers at polymerization reaction temperatures in excess of the softening temperature of the sticky polymers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting the polymerization reaction above the softening temperatures of the sticky polymers in the presence of about 0.3 to about 60 weight percent, based on the weight of the final product of an inlet particulate material having a mean particle size of from about 0.01 to about 10 micron meters whereby polymer agglomeration of the sticky polymers is maintained at a size suitable for continuously producing the sticky polymers.

公开(公告)号：US4772736A

公开(公告)日：1988-09-20

申请号：US124084

申请日：1987-11-23

申请人： David N. Edwards ,  John R. Briggs ,  Arthur E. Marcinkowsky ,  Kiu H. Lee

发明人： David N. Edwards ,  John R. Briggs ,  Arthur E. Marcinkowsky ,  Kiu H. Lee

IPC分类号： C07F5/06 ,  C08F4/60 ,  C08F4/62 ,  C08F10/00

CPC分类号： C07F5/068 ,  C08F10/00

摘要： A process for the preparation of aluminoxanes comprising introducing, under reaction conditions, at least one stream of water beneath the surface of an agitated solution of a hydrocarbyl aluminum compound in such a manner that the stream of water is essentially immediately dispersed on contact with the solution.

公开(公告)号：US4405495A

公开(公告)日：1983-09-20

申请号：US163959

申请日：1980-06-30

申请人： Kiu H. Lee ,  Gary S. Cieloszyk

发明人： Kiu H. Lee ,  Gary S. Cieloszyk

IPC分类号： C08F4/00 ,  B01J31/38 ,  C08F2/34 ,  C08F4/02 ,  C08F4/50 ,  C08F4/52 ,  C08F4/60 ,  C08F4/64 ,  C08F4/659 ,  C08F10/00 ,  C08F10/02 ,  C08F210/16

CPC分类号： C08F210/16 ,  Y10S526/901 ,  Y10S526/908 ,  Y10S526/909

摘要： An improved catalyst suitable for preparing film grade ethylene copolymers formed from an organo aluminum activator compound and a precursor composition impregnated in very fine particle sized porous silica, said precursor composition having the formulaMg.sub.m Ti.sub.1 (OR).sub.n X.sub.p [ED].sub.qwherein R is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical, or COR' wherein R' is a C.sub.1 to C.sub.14 aliphatic or aromatic hydrocarbon radical; X is selected from the group consisting of Cl, Br, I or mixtures thereof; ED is an electron donor compound; m is .gtoreq.0.5 to .ltoreq.56; n is 0, 1 or 2; p is .gtoreq.2 to .ltoreq.116; and q is .gtoreq.2 to .ltoreq.85; and said organo aluminum activator compound having the formulaAl(R").sub.c X'.sub.d H.sub.ewherein X' is Cl or OR"'; R" and R"' are the same or different and are C.sub.1 to C.sub.14 saturated hydrocarbon radicals; d is 0 to 1.5; e is 1 or 0 and c+d+e=3.

摘要翻译： 一种改进的催化剂，适用于制备由有机铝活化剂化合物形成的膜级乙烯共聚物和浸渍在极细颗粒尺寸的多孔二氧化硅中的前体组合物，所述前体组合物具有式MgmTi1（OR）nXp [ED] q，其中R为C1 C 14脂族或芳族烃基，或COR'，其中R'是C 1至C 14脂族或芳族烃基; X选自Cl，Br，I或其混合物; ED是电子给体化合物; m为≥0.5至 / = 2到 / = 2到

公开(公告)号：US5548040A

公开(公告)日：1996-08-20

申请号：US359513

申请日：1994-12-20

申请人： Kevin J. Cann ,  Fathi D. Hussein ,  Daniel P. Zilker, Jr. ,  Kiu H. Lee

发明人： Kevin J. Cann ,  Fathi D. Hussein ,  Daniel P. Zilker, Jr. ,  Kiu H. Lee

IPC分类号： C08F2/00 ,  C08F2/34 ,  C08F4/60 ,  C08F4/68 ,  C08F10/00 ,  C08F210/16

CPC分类号： C08F210/16

摘要： A method for passivating internal surfaces of a reactor system during start-up and shutdown of an alpha olefin polymerization or copolymerization reaction by adding a passivation agent such as a dialkyl zinc compound, an alcohol, or an epoxide, to the reactor prior to exposing the internal reactor surfaces to air or moisture before reaction initiation and/or after reaction ceases.

摘要翻译： 一种在将α-烯烃聚合或共聚反应的启动和停止期间钝化反应器系统的内表面的方法，在暴露所述反应器之前，向所述反应器中加入钝化剂，例如二烷基锌化合物，醇或环氧化物 在反应开始和/或反应停止之后内部反应器表面与空气或水分。

公开(公告)号：US5510433A

公开(公告)日：1996-04-23

申请号：US311138

申请日：1994-09-23

申请人： Edgar C. Baker ,  Jose F. Cevallos-Candau ,  Fathi D. Hussein ,  Kiu H. Lee ,  Allen Noshay

发明人： Edgar C. Baker ,  Jose F. Cevallos-Candau ,  Fathi D. Hussein ,  Kiu H. Lee ,  Allen Noshay

IPC分类号： C08F4/64 ,  C08F2/34 ,  C08F4/60 ,  C08F4/659 ,  C08F210/16 ,  C08F210/18

CPC分类号： C08F210/16 ,  C08F210/18 ,  Y10S526/901 ,  Y10S526/904

摘要： A process for the production of EPM or EPDM comprising contacting ethylene, propylene, and, optionally, one or more dienes, in a fluidized bed, at a temperature at or above the sticking temperature of the product resin, under polymerization conditions, with(i) a prepolymer containing a transition metal catalyst precursor with the proviso that the prepolymer is not sticky at the process temperature;(ii) a hydrocarbyl aluminum and/or a hydrocarbyl aluminum halide cocatalyst,; and, optionally,(iii) a halocarbon promoter; and, optionally,(iv) an inert particulate material having a mean particle size in the range of about 0.01 to about 150 microns wherein the particulate material is either contained in the prepolymer or is independent of the prepolymer,wherein the amount of prepolymer or the combined amount of prepolymer and inert particulate material is sufficient to essentially prevent agglomeration of the fluidized bed and the product resin.

摘要翻译： 一种生产EPM或EPDM的方法，包括在聚合条件下，在聚合条件下，在等温或高于产物树脂的粘着温度的温度下，在流化床中使乙烯，丙烯和任选的一种或多种二烯与（i ）含有过渡金属催化剂前体的预聚物，条件是预聚物在工艺温度下不粘; （ii）烃基铝和/或烃基卤化铝助催化剂; 和（iii）卤代烃促进剂; 和（iv）平均粒度在约0.01至约150微米范围内的惰性颗粒材料，其中颗粒材料包含在预聚物中或独立于预聚物，其中预聚物或 预聚物和惰性颗粒材料的组合量足以基本上防止流化床和产物树脂的团聚。

公开(公告)号：US5126398A

公开(公告)日：1992-06-30

申请号：US724804

申请日：1991-07-02

申请人： Kiu H. Lee ,  Frederick J. Karol ,  Sari B. Samuels

发明人： Kiu H. Lee ,  Frederick J. Karol ,  Sari B. Samuels

IPC分类号： C08F210/16 ,  C08F297/08

CPC分类号： C08F297/08 ,  C08F210/16

摘要： A process for the in situ blending of polymers comprising continuously contacting, under polymerization conditions, a mixture of ethylene and at least one alpha-olefin having at least 3 carbon atoms with a catalyst in at least two fluidized bed reactors connected in series, said catalyst comprising:(i) a complex consisting essentially of magnesium titanium, a halogen, and an electron donor;(ii) at least one activator compound; and(iii) a hydrocarbyl aluminum cocatalyst, the polymerization conditions being such that ethylene copolymer having a high melt index in the range of about 0.1 to about 1000 grams per 10 minutes is formed in at least one reactor and ethylene copolymer having a low melt index in the range of about 0.001 to about 1.0 gram per 10 minutes is formed in at least one other reactor, each copolymer having a density of about 0.860 to about 0.965 gram per cubic centimeter and a melt flow ratio in the range of about 22 to about 70, and being admixed with active catalyst.

摘要翻译： 一种用于原位共混聚合物的方法，包括在聚合条件下将至少一种具有至少3个碳原子的至少一种α-烯烃的混合物与至少两个串联连接的流化床反应器中的催化剂连续接触，所述催化剂 包括：（i）基本上由镁钛，卤素和电子给体组成的络合物; （ii）至少一种活化剂化合物; 和（iii）烃基铝助催化剂，聚合条件使得在至少一个反应器中形成熔体指数在约0.1至约1000克/ 10分钟范围内的乙烯共聚物，其熔体指数低 在至少一个其它反应器中形成约0.001至约1.0克/ 10分钟的范围，每个共聚物的密度为约0.860至约0.965克/立方厘米，熔体流动比在约22至约 70，并与活性催化剂混合。