US5646322A
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Indenyl compounds and catalyst components for the polymerization of olefins
Assignee: ROYAL DSM NV
•
Filing: 1995-05-11
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Granted: 1997-07-08
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Expires: 2015-05-11
Abstract
Abstract The invention relates to an indenyl compound of the general formula R'Ind--M--(Cp)Q.sub.k in which the symbols have the following meanings: Ind: an indenyl group R': a substituent, other than hydrogen, to the Ind group, Cp: a cyclopentadienyl group M: a transition metal from group 3, 4, 5 or 6 of the Periodic System of Elements Q: a ligand to M and k is an integer linked to the valence of M. The invention is characterized in that the R' group is bound to the Ind group at the 2-position. The indenyl compound is a catalyst component for the polymerization of olefins. The invention also relates to polymers obtainable with such indenyl compounds.
Inventors
- 👤 Johannus A. M. van Beek
- 👤 Johannes G. de Vries
- 👤 Henricus J. Arts
- 👤 Radjindrakumar Persad
- 👤 Gerardus H. J. van Doremaele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:37
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/16; C07; C07F; C07F17/00; C08F10/00; C08F10/02; C08F110/00; C08F110/02; C08F4/00; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/639; C08F4/63912; C08F4/6392; C08F4/63922; Y; Y10; Y10S; Y10S526/00; Y10S526/943
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
116 words
An indenyl compound represented by the general formula: R'Ind--M--(Cp)-Q.sub.k ( 1) wherein Ind represents an indenyl group, R' represents a substituent, other than hydrogen, bound to the Ind group at the 2-position, Cp represents a cyclopentadienyl group, M represents a transition metal from group 3, 4, 5, or 6 of the Periodic System of Elements, Q represents a ligand to M, and k is an integer linked to the valence of M, and wherein compounds in which the Cp-group is an indenyl group and in which either: a) the Ind- and the Cp-groups are bridged over the respective 1-positions, b) indenyl compound is bis(2,3-dimethyl-1-indenyl)zirconiumdichloride, or c) the indenyl compound is either ethyene-1-(3-but-3-enyl)inden-1-yl-2-((1-but-3-enyl)-inden-2-yl)-zirconiumdichloride, or ethylene-1-((3-allyldimethylsilyl)inden-1-yl)-2-((1-allyldimethylsilyl)inden-2-yl)zirconium-dichloride, are disclaimed.
Claim 2
Dependent Claim
13 words
An indenyl compound according to claim 1, wherein R' is an alkyl group.
Claim 3
Dependent Claim
15 words
An indenyl compound according to claim 2, wherein said alkyl group contains 1-4 carbon atoms.
Claim 4
Dependent Claim
35 words
An indenyl compound according to claim 1, wherein the Cp group is a 2-indenyl group represented by the formula: R"Ind wherein R" representes a substituent other than hydrogen at the 2-position of the Ind group.
Claim 5
Dependent Claim
14 words
An indenyl compound according to claim 4, wherein R" group is an alkyl group.
Claim 6
Dependent Claim
16 words
An indenyl compound according to claim 5, wherein said alkyl group R" contains 1-4 carbon atoms.
Claim 7
Dependent Claim
23 words
An indenyl compound according to claim 1, wherein R' forms a bridge between the Ind group and the Cp group in formula (1).
Claim 8
Dependent Claim
55 words
An indenyl compound according to claim 7, wherein compound is of the formula: ##STR3## wherein 2-Ind represents a 2-indenyl group and R is bound at the 2-position of both 2-Ind groups and R represents a hydrocarbon group or a group containing a heteroatom from Group 14, 15 or 16 of the Periodic System of Elements.
Claim 9
Dependent Claim
24 words
An indenyl compound according to claim 8, wherein R contains a heteroatom selected from the group consisting of silicon, nitrogen, phosphorous, oxygen and sulphur.
Claim 10
Dependent Claim
16 words
A catalyst component for the polymerisation of olefins comprising a 2-indenyl compound according to claim 1.
Claim 11
Dependent Claim
49 words
An indenyl compound according to claim 8, wherein R is selected from the group consisting of --S--, --(CH 2 ) 2 --S--(CH 2 ) 2 --, --O--, (CH 3 ) 2 Si═, --Si(CH 3 ) 2 --Si(CH 3 ) 2 --, (CH 3 ) 2 Ge═, PhP═ and PhN═.
Claim 12
Dependent Claim
17 words
An indenyl compound according to claim 8, wherein R is a methylydene group or an ethylydene group.
Claim 13
Dependent Claim
14 words
An indenyl compound according to claim 1, wherein M is Zr, Hf, or Ti.
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