US6524986B2
Expired / Lapsed
US
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Catalyst support and catalyst for the polymerization of α-olefins
Assignee: Ineos Manufacturing Belgium NV
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Filing: 2001-03-08
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Granted: 2003-02-25
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Expires: 2021-03-08
Abstract
Abstract Catalyst support containing an α-olefin polymer which is in the form of particles of mean size from 5 to 350 μm in which the pore volume generated by the pores of radius from 1,000 to 75,000 Å is at least 0.2 cm 3 /g. Catalyst usable for the polymerization of α-olefins, including a compound containing at least one transition metal belonging to groups IIIb, IVb, IVb and VIb of the Periodic Table, bound in or on this support.
Inventors
- 👤 Jean-Louis Costa
- 👤 Vincent Laurent
- 👤 Philippe Francois
- 👤 Dirk Vercammen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:50
CPC Classifications
C; C08; C08F; C08F10/00; C08F4/00; C08F4/02; C08F4/027; C08F110/00; C08F110/04; C08F110/06; C08F4/42; C08F4/44; C08F4/60; C08F4/62; C08F4/64; C08F4/659; C08F4/65908; C08F4/6592; C08F4/65922; C08F4/65925; Y; Y10; Y10S; Y10S526/00; Y10S526/904; Y10S526/908; Y10S526/943
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
178 words
A catalyst usable for the polymerization of α-olefins including a compound (b) containing at least one transition metal containing at least titanium, magnesium and chlorine bound in or on a support wherein the support includes at least one α-olefin polymer which is in the form of particles of mean size from 5 to 350 μm, in which the pore volume generated by the pores of radius from 1,000 to 75,000 Å is at least 0.2 cm 3 /g., wherein the support is obtained by polymerization of one or more α-olefins by means of a catalyst system (S) containing a catalytic compound (a) based on a transition metal belonging to group IIIb, IVb, Vb, and VIb of the Periodic Table which is in the form of particle of mean size from 2 to 200 μm, of pore volume generated by the pores of radius from 200 to 15,000 Å of at least 0.02 cm 3 /g and contains, per kg, from 2 to 170 g of compound (a), said catalytic system (S) containing further an organoaluminium compound as activator.
Claim 2
Dependent Claim
178 words
A catalyst usable for the polymerization of α-olefins including a compound (b) containing at least one transition metal containing at least titanium, magnesium and chlorine bound in or on a support wherein the support includes at least one α-olefin polymer which is in the form of particles of mean size from 5 to 350 μm, in which the pore volume generated by the pores of radius from 1,000 to 75,000 Å is at least 0.2 cm 3 /g., wherein the support is obtained by polymerization of one or more α-olefins by means of a catalyst system (S) containing a catalytic compound (a) based on a transition metal belonging to group IIIb, IVb, Vb, and VIb of the Periodic Table which is in the form of particle of mean size from 2 to 200 μm, of pore volume generated by the pores of radius from 200 to 15,000 Å of at least 0.02 cm 3 /g and contains, per kg, from 2 to 170 g of compound (a), said catalytic system (S) containing further an organoaluminium compound as activator.
Claim 3
Dependent Claim
116 words
The catalyst according to claim 1 , wherein the catalytic compound (a) is obtained by heat treatment, in the presence of a halogen-containing agent, of the liquid material resulting from placing titanium tetrachloride (TiCl 4 ) pretreated with an electron-donor compound into contact with a composition (D) corresponding to the general formula AlR p (Y) q X 3−(p+q) (II) in which R denotes a hydrocarbon radical; Y denotes a group chosen from —OR′, —SR′ and —NR′R″ in which each of R′ and R″ denotes a hydrocarbon radical or a hydrogen atom; X denotes a halogen; p is any number such that 0<p≦2.5; q is any number such that 0.5<q<3, the sum (p+q) being such that 0.5<(p+q)≦3.
Claim 4
Dependent Claim
19 words
The catalyst according to claim 1 , wherein the compound (b) contains a titanium halide supported on magnesium chloride.
Claim 5
Dependent Claim
20 words
The catalyst according to claim 1 , wherein the compound (b) is a solid complex of titanium and magnesium chloride.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-02-24 | 2006-08-26 | 2007-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-24 | 2010-08-26 | 2011-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-24 | 2014-08-26 | 2015-02-25 | $7700.00 | Window Closed / Lapsed |