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1. 发明专利

CA2585856A1 PROCESS FOR PRODUCING LOW DENSITY POLYETHYLENE COMPOSITIONS AND POLYMERS PRODUCED THEREFROM 未知
公开(公告)号：CA2585856A1
公开(公告)日：2006-05-11
申请号：CA2585856
申请日：2005-10-04
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： GILLESPIE DAVID T , CONRAD CHRISTOPHER W , EDDY CHRISTOPHER R
IPC分类号： C08F10/00 , C08F10/02
摘要： The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y≧0.0663x−0.015, wherein y=GPC-LALLS CDF and x=Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115° C. to 400° C., preferably 125-400° C., more preferably 140-350° C., especially 165-320° C., in a reactor system comprising at least one tubular, and at least one autoclave reactor, wherein the monomer(s) feed into the reactors is divided into multiple monomer feed streams, and wherein at least one feed stream into the tubular reactor consists essentially of unreacted monomer.

2. 发明专利

BRPI0608052A2 未知
公开(公告)号：BRPI0608052A2
公开(公告)日：2009-11-03
申请号：BRPI0608052
申请日：2006-03-03
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： OSWALD THOMAS , RHODIUS ANDREA M , EDDY CHRISTOPHER R , CONRAD CHRISTOPHER W
IPC分类号： C08L23/04 , C08J5/18
摘要： The instant invention is an improved low-density ethylenic polymer composition and method of making the same. The polymer composition according to instant invention includes a major component, and a minor component. The major component is an LDPE resin having a melt index (I2) in the range of about 0.01 dg/min to about 100 dg/min, a MW(abs)/MW(GPC) ratio of about 2.6 or less, and a melt strength of less than (14.0 e(−1.05*log 10(MI)))cN Jj16 mmor component is an LDPE resin having a melt index (I2) of less than about 5 dg/min, a molecular weight distribution of greater than about 7, and a MW(abs)/MW(GPC) ratio of at least 2.7. The polymer composition of the instant invention may further include additional components.

3. 发明专利

BRPI0516921A 未知
公开(公告)号：BRPI0516921A
公开(公告)日：2008-09-23
申请号：BRPI0516921
申请日：2005-10-04
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： CONRAD CHRISTOPHER W , GILLESPIE DAVID T , EDDY CHRISTOPHER R
IPC分类号： C08F10/00 , C08F10/02
摘要： The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y≧0.0663x−0.015, wherein y=GPC-LALLS CDF and x=Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115° C. to 400° C., preferably 125-400° C., more preferably 140-350° C., especially 165-320° C., in a reactor system comprising at least one tubular, and at least one autoclave reactor, wherein the monomer(s) feed into the reactors is divided into multiple monomer feed streams, and wherein at least one feed stream into the tubular reactor consists essentially of unreacted monomer.

4. 发明专利

CA2598450A1 AN IMPROVED LOW DENSITY ETHYLENIC POLYMER COMPOSITION AND METHOD OF MAKING THE SAME 未知
公开(公告)号：CA2598450A1
公开(公告)日：2006-09-14
申请号：CA2598450
申请日：2006-03-03
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： CONRAD CHRISTOPHER W , EDDY CHRISTOPHER R , RHODIUS ANDREA M , OSWALD THOMAS
IPC分类号： C08L23/04 , C08J5/18
摘要： The instant invention is an improved low-density ethylenic polymer composition and method of making the same. The polymer composition according to instant invention includes a major component, and a minor component. The major component is an LDPE resin having a melt index (I2) in the range of about 0.01 dg/min to about 100 dg/min, a MW(abs)/MW(GPC) ratio of about 2.6 or less, and a melt strength of less than (14.0 e(−1.05*log 10(MI)))cN Jj16 mmor component is an LDPE resin having a melt index (I2) of less than about 5 dg/min, a molecular weight distribution of greater than about 7, and a MW(abs)/MW(GPC) ratio of at least 2.7. The polymer composition of the instant invention may further include additional components.

5. 发明专利

BRPI0516921B1 homopolímero ou copolímero de etileno e processo de polimerização com iniciação via radical livre 未知
公开(公告)号：BRPI0516921B1
公开(公告)日：2016-04-12
申请号：BRPI0516921
申请日：2005-10-04
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： EDDY CHRISTOPHER R , CONRAD CHRISTOPHER W , GILLESPIE DAVID T
IPC分类号： C08F10/00 , C08F10/02
摘要： homopolímero ou copolímero de etileno e processo de polimerização com iniciação via radicais livres. a presente invenção refere-se a um homopolímero ou copolímero de etileno caracterizado por ter ramificação de cadeia longa, e ter uma distribuição de peso molecular, mw/mn, e uma gpc-lalls cdf, que satisfaz a seguinte relação: y 0,0663x - 0,015, na qual y= gpc- lalls cdf e x= mw/mn medido por gpc convencional, uma linha traçada de onde o cromatograma de ls cruza com peso molecular 350.000 e peso molecular 1.150.000 ter uma inclinação positiva, preferivelmente com um índice de fusão entre 0,15 e 2000 g/10 minutos. além disso, a invenção refere-se a um processo de polimerização com iniciação via radicais livres para a preparação de polímeros ou copolímeros de etileno compreendendo reagir etileno e opcionalmente um ou mais comonômeros numa pressão elevada, convenientemente entre 13.000 psig e 100.000 psig, e em temperaturas de reator de 115 °c a 400 °c, preferivelmente 125-400 °c, mais preferivelmente 140-350 °c, especialmente 165-320 °c, num sistema de reatores compreendendo pelo menos um reator tubular, e pelo menos um reator autoclave, sendo que a alimentação de monômeros nos reatores é dividida em múltiplas correntes de alimentação de monômeros, e sendo que pelo menos uma corrente de alimentação de monômeros no reator tubular consiste essencialmente de monâmero não reagido.

6. 发明专利

NO20074435A 未知
公开(公告)号：NO20074435A
公开(公告)日：2007-12-03
申请号：NO20074435
申请日：2007-09-03
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： OSWALD THOMAS , RHODIUS ANDREA M , EDDY CHRISTOPHER R , CONRAD CHRISTOPHER W
IPC分类号： C08L23/06
CPC分类号： C08L23/04 , C08L23/06 , C08L2205/02 , C08L2666/06 , C08F210/16 , C08F2500/03 , C08F2500/11 , C08F2500/12 , C08F2500/04

7. 发明专利

MX2007005190A PROCESO PARA LA PRODUCCION DE COMPOSICIONES DE POLIETILENO DE BAJA DENSIDAD Y POLIMEROS PRODUCIDOS A PARTIR DE LAS MISMAS. 未知
公开(公告)号：MX2007005190A
公开(公告)日：2007-11-08
申请号：MX2007005190
申请日：2005-10-04
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： GILLESPIE DAVID T , CONRAD CHRISTOPHER W , EDDY CHRISTOPHER R
IPC分类号： C08F10/02
摘要： La presente invencion se refiere a un homo- o co-polimero de etileno caracterizado porque tiene ramificacion de cadena larga, y porque tiene una distribucion de peso molecular, Mw/Mn, y un GPC-LALLS CDF, que satisface la siguiente relacion: y ( 0.0663x - 0.015, en donde 0.0663x - 0.015, en donde y = GPC-LALLS CDF, y x = Mw/Mn medida mediante GPC convencional; una linea trazada desde donde el cromatograma LS se intersecta con el peso molecular de 350,000 y el peso molecular de 1,150,000 tiene una inclinacion positiva, de preferencia con un indice de fusion de entre 0.15 y 2,000 gramos/10 minutos, y que tiene ramificacion de cadena larga. En adicion, la invencion se refiere a un proceso de polimerizacion con iniciacion de radicales libres para la preparacion de polimeros y copolimeros de etileno, el cual comprende hacer reaccionar el etileno y opcionalmente uno o mas comonomeros a una alta presion, convenientemente entre 910 kg/cm2 Y 7,000 kg/cm2, y a temperaturas del reactor de 115Degree C a 400Degree C, de preferencia de 125Degree C a 400Degree C, mas preferiblemente de 140Degree C a 350Degree C, y en especial de 165Degree C a 320Degree C, en un sistema de reactor que comprende cuando menos un reactor tubular y cuando menos un reactor de autoclave, en donde la alimentacion de los monomeros a los reactores se divide en multiples flujos de alimentacion de monomeros, y en donde cuando menos un flujo de alimentacion hacia el reactor tubular consiste esencialmente en monomero sin reaccionar.

8. 发明专利

CA2598450C AN IMPROVED LOW DENSITY ETHYLENIC POLYMER COMPOSITION AND METHOD OF MAKING THE SAME 未知
公开(公告)号：CA2598450C
公开(公告)日：2013-07-02
申请号：CA2598450
申请日：2006-03-03
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： OSWALD THOMAS , RHODIUS ANDREA M , EDDY CHRISTOPHER R , CONRAD CHRISTOPHER W
IPC分类号： C08L23/04 , C08J5/18
摘要： The instant invention is an improved low-density ethylenic polymer composition and method of making the same. The polymer composition according to instant invention includes a major component, and a minor component. The major component is an LDPE resin having a melt index (I2) in the range of about 0.01 dg/min to about 100 dg/min, a MW(abs)/MW(GPC) ratio of about 2.6 or less, and a melt strength of less than (14.0 e (- i.o5*log10(MI)) )cN Jj16 mmor component is an LDPE resin having a melt index (I2) of less than about 5 dg/min, a molecular weight distribution of greater than about 7, and a MW(abs)/MW(GPC) ratio of at least 2.7. The polymer composition of the instant invention may further include additional components. Furthermore, the free radical initiation polymerization process according to instant invention includes the following steps: providing ethylene; and reacting the ethylene in a reactor system, which includes at least one tubular reactor and at least one autoclave reactor, at a high pressure range of about 18,000 psig to about 55,000 psig, at a reactor temperature of about 190~C to about 400~C, wherein the ethylene feed into the reactors is divided into multiple ethylene feed streams, and at least one of the ethylene feed streams into the tubular reactor consists essentially of the unreacted ethylene. Additionally, the free radical initiation polymerization process according to instant invention may further include the steps of providing at least one or more comonomers; and reacting the ethylene and the comonomer(s) in the reactor system a a high pressure range of about 18,000 psig to about 55,000 psig, at a reactor temperature of about 190~C to about 400~C.

9. 发明专利

SG156696A1 PROCESS FOR PRODUCING LOW DENSITY POLYETHYLENE COMPOSITIONS AND POLYMERS PRODUCED THEREFROM 未知
公开(公告)号：SG156696A1
公开(公告)日：2009-11-26
申请号：SG2009073230
申请日：2005-10-04
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： CONRAD CHRISTOPHER W , GILLESPIE DAVID T , EDDY CHRISTOPHER R
摘要： The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y≧0.0663x−0.015, wherein y=GPC-LALLS CDF and x=Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115° C. to 400° C., preferably 125-400° C., more preferably 140-350° C., especially 165-320° C., in a reactor system comprising at least one tubular, and at least one autoclave reactor, wherein the monomer(s) feed into the reactors is divided into multiple monomer feed streams, and wherein at least one feed stream into the tubular reactor consists essentially of unreacted monomer.

10. 发明专利

CA2585856C PROCESS FOR PRODUCING LOW DENSITY POLYETHYLENE COMPOSITIONS AND POLYMERS PRODUCED THEREFROM 未知
公开(公告)号：CA2585856C
公开(公告)日：2013-07-02
申请号：CA2585856
申请日：2005-10-04
申请人： DOW GLOBAL TECHNOLOGIES INC
发明人： CONRAD CHRISTOPHER W , GILLESPIE DAVID T , EDDY CHRISTOPHER R
IPC分类号： C08F10/00 , C08F10/02
摘要： The present invention relates to an ethylene homo or copolymer characterized as having long chain branching, and having a molecular weight distribution, Mw/Mn, and a GPC-LALLS CDF, which satisfies the following relationship: y >= 0.0663x - 0.015, wherein y = GPC-LALLS CDF and x = Mw/Mn measured by conventional GPC, a line drawn from where the LS chromatogram intersects with molecular weight 350,000 and molecular weight 1,150,000 has a positive slope, preferably with a melt index between 0.15 and 2000 g/10 minutes and having long chain branching. In addition, the invention relates to a free radical initiation polymerization process for the preparation of ethylene polymers or copolymers, comprising reacting ethylene and optionally one or more comonomers at a high pressure, conveniently between 13,000 psig and 100,000 psig, and at reactor temperatures of 115 ~C to 400 ~C, preferably 125-400 ~C, more preferably 140-350 ~C, especially 165-320 ~C, in a reactor system comprising at least one tubular, and at least one autoclave reactor, wherein the monomer(s) feed into the reactors is divided into multiple monomer feed streams, and wherein at least one feed stream into the tubular reactor consists essentially of unreacted monomer.

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