[특허]Process and catalyst for producing isotactic polyolefins

[미국특허] Process and catalyst for producing isotactic polyolefins 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C08F-004/60 C08F-004/64
출원번호	US-0087547 (1998-05-29)
발명자 / 주소	Ewen John A. Elder Michael J. Reddy B. Raghava
출원인 / 주소	Fina Technology, Inc.
대리인 / 주소	Jackson
인용정보	피인용 횟수 : 13 인용 특허 : 7

초록 ▼

wherein (CpR.sub.2 C.sub.4 R.sub.4) and (CpR.sub.2 C.sub.4 R.sub.4) are substituted indenyl rings; each R and R' is a hydrogen or a hydrocarbyl radical having 1-20 carbon atoms; R" is a structural bridge between the two indenyl rings imparting stereorigidity to the indenyl rings; Me is a transition metal; and each is a hydrocarbyl radical or is a halogen. Further, one R and R' is a hydrocarbyl radical having 1-20 carbon atoms in a proximal position adjacent to the bridgehead carbon of the indenyl rings. The invention also includes a process of preparing isotactic polyolefins that comprises the use of one or more of the disclosed catalyst components and also a process for preparing the catalyst components.

대표청구항 ▼

[ What is claimed as new and desired to be secured by Letter of Patent of the United States of America is:] [1.]1. A process for the polymerization of olefins of at least three carbon atoms comprising:(a) selecting a predominantly racemic stereorigid metallocene described by the formula: rein (CpR.sub.2 C.sub.4 R.sub.4) and (CpR'.sub.2 C.sub.4 R'.sub.4) are substituted indenyl rings; each R and R' is a hydrogen or hydrocarbyl radical having 1-20 carbon atoms, each R being the same or different, each R' also being the same or different, one R and R' being a hydrocarbyl radical having 1-20 carbon atoms in a proximal position adjacent to the bridgehead carbon of the indenyl rings; R" is a structural bridge between the two indenyl rings imparting stereorigidity to the indenyl rings; Me is a Group IVB, Group VB, or Group VIB transition metal; and each Q is a hydrocarbyl radical or is a halogen and k is the valence of Me minus 2; and(b) forming a catalyst by contacting the metallocene with a cocatalyst or a Lewis acid ionic ionizing agent;(c) bringing the catalyst in contact with an alpha olefin of at least three carbon atoms under polymerization conditions; and(d) extracting isotactic polyolefin.

이 특허에 인용된 특허 (7) 인용/피인용 타임라인 분석

Winter Andreas (Glashtten DEX) Antberg Martin (Hofheim am Taunus DEX) Spaleck Walter (Liederbach DEX) Rohrmann Jrgen (Liederbach DEX) Dolle Volker (Kelkheim DEX), 2-substituted disindenylmetallocenes, process for their preparation, and their use as catalysts in the polymerization of.
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Winter Andreas (Glashtten DEX) Antberg Martin (Hofheim am Taunus DEX) Spaleck Walter (Liederbach DEX) Rohrmann Jrgen (Liederbach DEX) Dolle Volker (Kelkheim DEX), Metallocenes containing ligands of 2-substituted idenyl derivatives, process for their preparation, and their use as cat.
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Winter Andreas (Glashtten DEX) Antberg Martin (Hofheim am Taunus DEX) Spaleck Walter (Liederbach DEX) Rohrmann Jrgen (Liederbach DEX) Dolle Volker (Kelkheim DEX), Process for the preparation of a high molecular weight olefin polymer.
상세보기
Winter Andreas (Glashtten/Taunus DEX) Rohrmann Jrgen (Kelkheim DEX) Dolle Volker (Kelkheim DEX) Kber Frank (Oberursel DEX), Process for the preparation of a high molecular weight olefin polymer.
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Spaleck Walter (Liederbach DEX) Rohrmann Jrgen (Kelkheim DEX) Antberg Martin (Hofheim am Taunus DEX), Process for the preparation of an olefin polymer.
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Winter Andreas (Glashtten DEX) Dolle Volker (Kelkheim am Taunus DEX) Spaleck Walter (Liederbach DEX), Process for the preparation of polyolefins having a broad molecular weight distribution.
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Karl Eberhard (Konstanz DEX) Roell Werner (Konstanz DEX) Brintzinger Hans (Leimbach-Guntershausen CHX) Rieger Bernhard (Nehren DEX) Stehling Udo (Konstanz DEX), Soluble catalyst systems for the preparation of polyalk-1-enes having high molecular weights.
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이 특허를 인용한 특허 (13) 인용/피인용 타임라인 분석

Boussie,Thomas R.; Br？mmer,Oliver; Diamond,Gary M.; LaPointe,Anne M.; Leclerc,Margarete K.; Micklatcher,Cynthia; Sun,Pu; Bei,Xiaohong, Bridged bi-aromatic catalysts, complexes, and methods of using the same.
상세보기
Boussie,Thomas; Bruemmer,Oliver; Diamond,Gary M.; LaPointe,Anne M.; Leclerc,Margarete K.; Micklatcher,Cynthia; Sun,Pu; Bei,Xiaohong, Bridged bi-aromatic catalysts, complexes, and methods of using the same.
상세보기
Boussie,Thomas; Diamond,Gary M.; LaPointe,Anne M.; Leclerc,Margarete K.; Micklatcher,Cynthia; Sun,Pu; Bei,Xiaohong, Bridged bi-aromatic catalysts, complexes, and methods of using the same.
상세보기
Boussie, Thomas R.; Br?mmer, Oliver; Diamond, Gary M.; Goh, Christopher; LaPointe, Anne M.; Leclerc, Margarete K.; Shoemaker, James A. W., Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom.
상세보기
Boussie, Thomas R.; Brummer, Oliver; Diamond, Gary M.; Goh, Christopher; LaPointe, Anne M.; Leclerc, Margarete K.; Shoemaker, James A. W., Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom.
상세보기
Boussie, Thomas R.; Diamond, Gary M.; Goh, Christopher; LaPointe, Anne M.; Leclerc, Margaret K.; Shoemaker, James A. W., Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom.
상세보기
Boussie, Thomas R.; Diamond, Gary M.; Goh, Christopher; LaPointe, Anne M.; Leclerc, Margarete K.; Shoemaker, James A. W., Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom.
상세보기
Boussie,Thomas R.; Br체mmer,Oliver; Diamond,Gary M.; Goh,Christopher; LaPointe,Anne M.; Leclerc,Margaret K.; Shoemaker,James A. W., Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom.
상세보기
Boussie,Thomas R.; Br？mmer,Oliver; Diamond,Gary M.; Goh,Christopher; LaPointe,Anne M.; Leclerc,Margarete K.; Shoemaker,James A. W., Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom.
상세보기
Boussie,Thomas R.; Diamond,Gary M.; Goh,Christopher; LaPointe,Anne M.; Leclerc,Margarete K.; Shoemaker,James A. W., Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom.
상세보기
Li, Frank, Injection molding process.
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Ewen, John A., Process for the polymerization of alpha olefins.
상세보기
Patkar, Mahesh; Musgrave, Michael, Transforming process.
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[미국특허] Process and catalyst for producing isotactic polyolefins 원문보기