EP0302424B1
Expired / Lapsed
EP
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Process for preparing 1-olefinpolymers
Assignee: Ticona GmbH
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Filing: 1988-07-30
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Granted: 1991-07-24
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Expires: 2008-07-30
Abstract
No abstract record available.
Inventors
- 👤 Andreas Dr. Winter
- 👤 Walter Dr. Spaleck
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 21:32
CPC Classifications
C; C08; C08F; C08F110/00; C08F110/04; C08F110/06; C07; C07F; C07F17/00; C08F10/00; C08F10/04; C08F10/06; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/619; C08F4/6192; C08F4/61922; C08F4/61927; C08F4/62; C08F4/639; C08F4/63912; C08F4/6392; C08F4/63922; C08F4/63927; C08F4/64; C08F4/659; C08F4/65912; C08F4/6592; C08F4/65922; C08F4/65927; Y; Y10; Y10S; Y10S526/00; Y10S526/902; Y10S526/943
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
198 words
A process for the preparation of a 1-olefin polymer by polymerizing a 1-olefin of the formula R-CH=CH₂ in which R is an alkyl group having 1 to 28 carbon atoms or copolymerizing these olefins together with ethylene at a temperature from - 60 to 200°C, under a pressure of 0.5 to 60 bar, in solution, in suspension or in the gas phase and in the presence of a catalyst which is composed of a transition metal component containing a metallocene, and an aluminoxane of the formula IV or V as the second component, which comprises carrying out the polymerization in the presence of a catalyst in which, before the polymerization, the transition metal component has been prepared by dissolving a metallocene in the form of a solid in a solution of an aluminoxane of the formula IV for the linear type and/or of the formula V for the cyclic type, R¹⁷ in the formulae IV and V being a C₁-C₆-alkyl group and p being an integer from 2 to 50, and has been preactivated for 5 minutes to 100 hours at a temperature from - 78 to 100°C, and this solution is used as such for the polymerization.
Claim 2
Dependent Claim
198 words
A process for the preparation of a 1-olefin polymer by polymerizing a 1-olefin of the formula R-CH=CH₂ in which R is an alkyl group having 1 to 28 carbon atoms or copolymerizing these olefins together with ethylene at a temperature from - 60 to 200°C, under a pressure of 0.5 to 60 bar, in solution, in suspension or in the gas phase and in the presence of a catalyst which is composed of a transition metal component containing a metallocene, and an aluminoxane of the formula IV or V as the second component, which comprises carrying out the polymerization in the presence of a catalyst in which, before the polymerization, the transition metal component has been prepared by dissolving a metallocene in the form of a solid in a solution of an aluminoxane of the formula IV for the linear type and/or of the formula V for the cyclic type, R¹⁷ in the formulae IV and V being a C₁-C₆-alkyl group and p being an integer from 2 to 50, and has been preactivated for 5 minutes to 100 hours at a temperature from - 78 to 100°C, and this solution is used as such for the polymerization.
Claim 3
Dependent Claim
23 words
The process as claimed in claim 1, wherein a stereorigid, chiral metallocene is used for the preparation of a highly isotactic 1-olefin polymer.
Claim 4
Dependent Claim
29 words
The process as claimed in claim 1, wherein a metallocene containing at least one chiral radical in the ligand sphere is used for the preparation of a stereoblock polymer.
References Cited (Backward Citations)
No citation records indexed.
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