GR3032033T3 - Olefin polymerization - Google Patents

Olefin polymerization

Info

Publication number: GR3032033T3
Authority: GR; Greece
Prior art keywords: olefin polymerization; olefin; polymerization
Prior art date: 1996-07-17

Application number

GR990403120T

Other languages

English (en)

Inventor

Gil R Hawley

Darryl Richard Fahey

Ronald Lee Halterman

Timothy Michael Ramsey

Original Assignee

Phillips Petroleum Co

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1996-07-17

Filing date

1999-12-02

Publication date

2000-03-31

1999-12-02 Application filed by Phillips Petroleum Co filed Critical Phillips Petroleum Co

2000-03-31 Publication of GR3032033T3 publication Critical patent/GR3032033T3/el

Links

150000001336 alkenes Chemical class 0.000 title 1
JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title 1
238000006116 polymerization reaction Methods 0.000 title 1

Classifications

- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/6592—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
- C08F4/65922—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not
- C08F4/65925—Component covered by group C08F4/64 containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring containing at least two cyclopentadienyl rings, fused or not two cyclopentadienyl rings being mutually non-bridged
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F110/04—Monomers containing three or four carbon atoms
- C08F110/06—Propene
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
- C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
- C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
- C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
- C08F4/62—Refractory metals or compounds thereof
- C08F4/64—Titanium, zirconium, hafnium or compounds thereof
- C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
- C08F4/65912—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with an organoaluminium compound
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/943—Polymerization with metallocene catalysts

Landscapes

Chemical & Material Sciences (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Crystallography & Structural Chemistry (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

GR990403120T 1996-07-17 1999-12-02 Olefin polymerization GR3032033T3 (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US08/682,223 US5705579A (en)	1996-07-17	1996-07-17	Olefin polymerization

Publications (1)

Publication Number	Publication Date
GR3032033T3 true GR3032033T3 (en)	2000-03-31

Family

ID=24738745

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GR990403120T GR3032033T3 (en)	1996-07-17	1999-12-02	Olefin polymerization

Country Status (22)

Country	Link
US (1)	US5705579A (el)
EP (1)	EP0819705B1 (el)
JP (1)	JPH1067815A (el)
KR (1)	KR980008316A (el)
CN (1)	CN1113070C (el)
AR (1)	AR007910A1 (el)
AT (1)	ATE184291T1 (el)
AU (1)	AU694073B2 (el)
BR (1)	BR9704007A (el)
CA (1)	CA2210730C (el)
DE (1)	DE69700490T2 (el)
DK (1)	DK0819705T3 (el)
ES (1)	ES2135966T3 (el)
GR (1)	GR3032033T3 (el)
HU (1)	HUP9701223A3 (el)
ID (1)	ID19682A (el)
MX (1)	MX9705210A (el)
MY (1)	MY132781A (el)
NO (1)	NO311525B1 (el)
RU (1)	RU2193042C2 (el)
TW (1)	TW505664B (el)
ZA (1)	ZA976084B (el)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BR9910611B1 (pt)	1998-05-18	2009-05-05		processo para produção de uma composição de catalisador.
CN1217733C (zh)	1999-12-16	2005-09-07	菲利浦石油公司	有机金属化合物催化剂
US7041617B2 (en)	2004-01-09	2006-05-09	Chevron Phillips Chemical Company, L.P.	Catalyst compositions and polyolefins for extrusion coating applications
US7550528B2 (en)	2002-10-15	2009-06-23	Exxonmobil Chemical Patents Inc.	Functionalized olefin polymers
ES2394304T3 (es)	2002-10-15	2013-01-30	Exxonmobil Chemical Patents, Inc.	Sistema de múltiples catalizadores para la polimerización de olefinas y polímeros producidos a partir de éstos
US7700707B2 (en)	2002-10-15	2010-04-20	Exxonmobil Chemical Patents Inc.	Polyolefin adhesive compositions and articles made therefrom
EP1464657A1 (en) *	2003-03-06	2004-10-06	ATOFINA Research	Hydrogenated metallocene catalyst
US7696280B2 (en)	2004-04-30	2010-04-13	Chevron Phillips Chemical Company, Lp	HDPE resins for use in pressure pipe and related applications
US7294599B2 (en)	2004-06-25	2007-11-13	Chevron Phillips Chemical Co.	Acidic activator-supports and catalysts for olefin polymerization
US7163906B2 (en) *	2004-11-04	2007-01-16	Chevron Phillips Chemical Company, Llp	Organochromium/metallocene combination catalysts for producing bimodal resins
US7517939B2 (en)	2006-02-02	2009-04-14	Chevron Phillips Chemical Company, Lp	Polymerization catalysts for producing high molecular weight polymers with low levels of long chain branching
US7619047B2 (en) *	2006-02-22	2009-11-17	Chevron Phillips Chemical Company, Lp	Dual metallocene catalysts for polymerization of bimodal polymers
US7572948B2 (en) *	2007-05-16	2009-08-11	Chevron Phillips Chemical Company, Lp	Fulvene purification
US7897539B2 (en) *	2007-05-16	2011-03-01	Chevron Phillips Chemical Company Lp	Methods of preparing a polymerization catalyst
US8058200B2 (en) *	2007-05-17	2011-11-15	Chevron Phillips Chemical Company, L.P.	Catalysts for olefin polymerization
US20090036554A1 (en) *	2007-08-01	2009-02-05	Burke Susan E	Ophthalmic compositions comprising a terpene compound
US8119553B2 (en) *	2007-09-28	2012-02-21	Chevron Phillips Chemical Company Lp	Polymerization catalysts for producing polymers with low melt elasticity
US7799721B2 (en) *	2007-09-28	2010-09-21	Chevron Phillips Chemical Company Lp	Polymerization catalysts for producing polymers with high comonomer incorporation
US20100280153A1 (en) *	2008-01-11	2010-11-04	Keita Itakura	Modified propylene resin
US8114946B2 (en)	2008-12-18	2012-02-14	Chevron Phillips Chemical Company Lp	Process for producing broader molecular weight distribution polymers with a reverse comonomer distribution and low levels of long chain branches
KR101673043B1 (ko)	2009-06-16	2016-11-04	셰브론 필립스 케미컬 컴퍼니 엘피	메탈로센-ｓｓａ 촉매시스템을 이용한 알파 올레핀 올리고머화 및 윤활제 블렌드 제조를 위한 생성된 폴리알파올레핀의 용도
US10233268B2 (en) *	2010-07-01	2019-03-19	Total Research & Technology Feluy	Modified catalyst supports
US8476394B2 (en)	2010-09-03	2013-07-02	Chevron Philips Chemical Company Lp	Polymer resins having improved barrier properties and methods of making same
US8440772B2 (en)	2011-04-28	2013-05-14	Chevron Phillips Chemical Company Lp	Methods for terminating olefin polymerizations
US8487053B2 (en)	2011-11-30	2013-07-16	Chevron Phillips Chemical Company Lp	Methods for removing polymer skins from reactor walls
US8501882B2 (en)	2011-12-19	2013-08-06	Chevron Phillips Chemical Company Lp	Use of hydrogen and an organozinc compound for polymerization and polymer property control
ES2497341B1 (es) *	2011-12-22	2015-09-23	Petróleo Brasileiro S.A. - Petrobras	Catalizador soportado sobre alúmina para su uso en la polimerización de olefinas y método para su preparación
US8703883B2 (en)	2012-02-20	2014-04-22	Chevron Phillips Chemical Company Lp	Systems and methods for real-time catalyst particle size control in a polymerization reactor
US10273315B2 (en)	2012-06-20	2019-04-30	Chevron Phillips Chemical Company Lp	Methods for terminating olefin polymerizations
US8916494B2 (en)	2012-08-27	2014-12-23	Chevron Phillips Chemical Company Lp	Vapor phase preparation of fluorided solid oxides
US8940842B2 (en)	2012-09-24	2015-01-27	Chevron Phillips Chemical Company Lp	Methods for controlling dual catalyst olefin polymerizations
US8895679B2 (en)	2012-10-25	2014-11-25	Chevron Phillips Chemical Company Lp	Catalyst compositions and methods of making and using same
US8937139B2 (en)	2012-10-25	2015-01-20	Chevron Phillips Chemical Company Lp	Catalyst compositions and methods of making and using same
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US8815357B1 (en)	2013-02-27	2014-08-26	Chevron Phillips Chemical Company Lp	Polymer resins with improved processability and melt fracture characteristics
US9181369B2 (en)	2013-03-11	2015-11-10	Chevron Phillips Chemical Company Lp	Polymer films having improved heat sealing properties
US10654948B2 (en)	2013-03-13	2020-05-19	Chevron Phillips Chemical Company Lp	Radically coupled resins and methods of making and using same
US10577440B2 (en)	2013-03-13	2020-03-03	Chevron Phillips Chemical Company Lp	Radically coupled resins and methods of making and using same
US9828451B2 (en)	2014-10-24	2017-11-28	Chevron Phillips Chemical Company Lp	Polymers with improved processability for pipe applications
US10940460B2 (en)	2015-05-11	2021-03-09	W. R. Grace & Co.-Conn.	Process to produce modified clay, modified clay produced and use thereof
KR102578006B1 (ko)	2015-05-11	2023-09-12	더블유.알. 그레이스 앤드 캄파니-콘.	개질된 점토, 지지된 메탈로센 중합 촉매의 제조 방법, 제조된 촉매, 및 이의 용도
US9708426B2 (en)	2015-06-01	2017-07-18	Chevron Phillips Chemical Company Lp	Liquid-solid sampling system for a loop slurry reactor
WO2017078974A1 (en)	2015-11-05	2017-05-11	Chevron Phillips Chemical Company Lp	Radically coupled resins and methods of making and using same
US9645066B1 (en)	2015-12-04	2017-05-09	Chevron Phillips Chemical Company Lp	Polymer compositions having improved processability and methods of making and using same
US9645131B1 (en)	2015-12-04	2017-05-09	Chevron Phillips Chemical Company Lp	Polymer compositions having improved processability and methods of making and using same
US10005861B2 (en)	2016-06-09	2018-06-26	Chevron Phillips Chemical Company Lp	Methods for increasing polymer production rates with halogenated hydrocarbon compounds
JP6890398B2 (ja) *	2016-10-24	2021-06-18	三井化学株式会社	遷移金属化合物、オレフィン重合用触媒およびオレフィン重合体の製造方法
US10550252B2 (en)	2017-04-20	2020-02-04	Chevron Phillips Chemical Company Lp	Bimodal PE resins with improved melt strength
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US12077616B2 (en)	2021-12-15	2024-09-03	Chevron Phillips Chemical Company Lp	Production of polyethylene and ethylene oligomers from ethanol and the use of biomass and waste streams as feedstocks to produce the ethanol
US11845814B2 (en)	2022-02-01	2023-12-19	Chevron Phillips Chemical Company Lp	Ethylene polymerization processes and reactor systems for the production of multimodal polymers using combinations of a loop reactor and a fluidized bed reactor
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US12606648B2 (en)	2023-07-13	2026-04-21	Chevron Phillips Chemical Company Lp	Centralized hydrocarbon treatment in a polymer production process
US20250066274A1 (en)	2023-08-22	2025-02-27	Chevron Phillips Chemical Company Lp	Integrated processes utilizing water electrolysis and oxidative dehydrogenation of ethane

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4937217A (en) *	1987-12-17	1990-06-26	Exxon Chemical Patents Inc.	Method for utilizing triethylaluminum to prepare an alumoxane support for an active metallocene catalyst
US4871705A (en) *	1988-06-16	1989-10-03	Exxon Chemical Patents Inc.	Process for production of a high molecular weight ethylene a-olefin elastomer with a metallocene alumoxane catalyst
US5304523A (en) *	1988-07-15	1994-04-19	Fina Technology, Inc.	Process and catalyst for producing crystalline polyolefins
US5239022A (en) *	1990-11-12	1993-08-24	Hoechst Aktiengesellschaft	Process for the preparation of a syndiotactic polyolefin
DE4125135A1 (de) *	1991-07-30	1993-02-04	Hoechst Ag	Verfahren zur herstellung eines stereoblockpolymers
US5391789A (en) *	1991-08-08	1995-02-21	Hoechst Aktiengesellschaft	Bridged, chiral metallocenes, processes for their preparation and their use as catalysts
US5416228A (en) *	1991-10-07	1995-05-16	Fina Technology, Inc.	Process and catalyst for producing isotactic polyolefins
US5491207A (en) *	1993-12-14	1996-02-13	Exxon Chemical Patents Inc.	Process of producing high molecular weight ethylene-α-olefin elastomers with an indenyl metallocene catalyst system
US5594080A (en) *	1994-03-24	1997-01-14	Leland Stanford, Jr. University	Thermoplastic elastomeric olefin polymers, method of production and catalysts therefor
IT1273662B (it) *	1994-07-20	1997-07-09	Spherilene Srl	Procedimento per la preparazione di polimeri amorfi del propiline'
DE69518830T2 (de) *	1994-12-20	2001-03-22	Montell Technology Co. B.V., Hoofddorp	Polypropylenreaktionsmischung und verfahren zu ihrer herstellung

1996
- 1996-07-17 US US08/682,223 patent/US5705579A/en not_active Expired - Fee Related
1997
- 1997-07-08 ZA ZA9706084A patent/ZA976084B/xx unknown
- 1997-07-08 AU AU28503/97A patent/AU694073B2/en not_active Ceased
- 1997-07-10 MX MX9705210A patent/MX9705210A/es unknown
- 1997-07-11 KR KR1019970032200A patent/KR980008316A/ko not_active Ceased
- 1997-07-15 TW TW086109946A patent/TW505664B/zh not_active IP Right Cessation
- 1997-07-15 MY MYPI97003202A patent/MY132781A/en unknown
- 1997-07-16 ID IDP972473A patent/ID19682A/id unknown
- 1997-07-16 DK DK97112136T patent/DK0819705T3/da active
- 1997-07-16 ES ES97112136T patent/ES2135966T3/es not_active Expired - Lifetime
- 1997-07-16 AT AT97112136T patent/ATE184291T1/de not_active IP Right Cessation
- 1997-07-16 EP EP97112136A patent/EP0819705B1/en not_active Expired - Lifetime
- 1997-07-16 DE DE69700490T patent/DE69700490T2/de not_active Expired - Fee Related
- 1997-07-16 CN CN97114690A patent/CN1113070C/zh not_active Expired - Fee Related
- 1997-07-16 BR BR9704007A patent/BR9704007A/pt not_active Application Discontinuation
- 1997-07-16 RU RU97112500/04A patent/RU2193042C2/ru not_active IP Right Cessation
- 1997-07-17 JP JP9192689A patent/JPH1067815A/ja active Pending
- 1997-07-17 AR ARP970103214A patent/AR007910A1/es unknown
- 1997-07-17 CA CA002210730A patent/CA2210730C/en not_active Expired - Fee Related
- 1997-07-17 HU HU9701223A patent/HUP9701223A3/hu unknown
- 1997-07-17 NO NO19973314A patent/NO311525B1/no not_active IP Right Cessation
1999
- 1999-12-02 GR GR990403120T patent/GR3032033T3/el unknown

Also Published As

Publication number	Publication date
EP0819705B1 (en)	1999-09-08
TW505664B (en)	2002-10-11
CN1182749A (zh)	1998-05-27
ID19682A (id)	1998-07-30
HU9701223D0 (en)	1997-08-28
AU694073B2 (en)	1998-07-09
EP0819705A1 (en)	1998-01-21
ZA976084B (en)	1998-02-02
KR980008316A (ko)	1998-04-30
AR007910A1 (es)	1999-11-24
HUP9701223A3 (en)	2001-04-28
DK0819705T3 (da)	1999-12-20
ES2135966T3 (es)	1999-11-01
CA2210730A1 (en)	1998-01-17
CA2210730C (en)	2001-09-11
RU2193042C2 (ru)	2002-11-20
DE69700490D1 (de)	1999-10-14
NO311525B1 (no)	2001-12-03
BR9704007A (pt)	1998-09-01
CN1113070C (zh)	2003-07-02
MX9705210A (es)	1998-04-30
HUP9701223A2 (hu)	1999-06-28
ATE184291T1 (de)	1999-09-15
DE69700490T2 (de)	2000-01-05
NO973314L (no)	1998-01-19
AU2850397A (en)	1998-01-29
JPH1067815A (ja)	1998-03-10
NO973314D0 (no)	1997-07-17
MY132781A (en)	2007-10-31
US5705579A (en)	1998-01-06

Publication	Publication Date	Title
GR3032033T3 (en)	2000-03-31	Olefin polymerization
GB9600272D0 (en)	1996-03-06	Polymers
EG21243A (en)	2001-04-30	Polymerisation catalyst
IL130104A0 (en)	2000-06-01	Thermoplastic olefin compositions
HUP0002912A3 (en)	2001-03-28	Polymerization of olefins
GB9526419D0 (en)	1996-02-21	Polymers
ZA97566B (en)	1998-07-23	Olefin addition polymerization catalyst composition
AU2655495A (en)	1996-01-15	Olefin polymerization catalyst
SG55325A1 (en)	1998-12-21	Propylene block copolymer
GB2316410B (en)	2000-12-06	Stabilizer mixtures for olefin polymers
AU1880795A (en)	1995-09-18	Olefin polymerization catalysts
EP0709410A3 (en)	1997-03-26	Polymers
PL331244A1 (en)	1999-07-05	Polymerisation inhibitor
HUP9800490A3 (en)	2002-01-28	Process for polymerizing olefin
SG75860A1 (en)	2000-10-24	Propylene block copolymer
DE69703973D1 (de)	2001-03-01	Olefinpolymerisationsverfahren
GB9620691D0 (en)	1996-11-20	Olefin polymers
GB9621865D0 (en)	1996-12-11	Olefin polymerization process
HK1016619A (en)	1999-11-05	Olefin solution polymerization
GB9721981D0 (en)	1997-12-17	Olefin polymerization process
SG43580A1 (en)	1997-10-17	Novel functional polymers
GB9814355D0 (en)	1998-09-02	Polymers
GB9604382D0 (en)	1996-05-01	Polymers
GB9612580D0 (en)	1996-08-21	Polymers
GB9612582D0 (en)	1996-08-21	Polymers