Patent US5885924A successfully refreshed from Google Patents.
US5885924A
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Halogenated supports and supported activators
Assignee: WR Grace and Co Conn
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Filing: 1995-06-07
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Granted: 1999-03-23
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Expires: 2015-06-07
Abstract
Abstract The present invention relates to catalyst supports and improvements thereof for use with supported activators and supported transition metal catalyst systems. The invention specifically involves reacting a carrier containing reactive functionalities, e.g., hydroxyl containing silica, with halogenated organic compounds, e.g., fluorosubstituted phenols. The reaction is preferably carried out in the presence of a base. The reaction consumes undesired functionalities on the support to provide a halogenated support which is suitable for activators and catalytic precursors which are adversely affected by functionalities typically found on supports. The supported activators or catalytic precursors are prepared by contacting the precursors or activators with the halogenated support.
Inventors
- 👤 David George Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:26
CPC Classifications
C; C08; C08F; C08F10/00; C08F4/00; C08F4/02; C08F2410/00; C08F2410/07; C08F4/42; C08F4/44; C08F4/60; C08F4/619; C08F4/61904; C08F4/61908; C08F4/61916
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
121 words
A catalyst support composition represented by the following formula Carrier-L-RX wherein the Carrier, which has a surface, is porous, covalently bonded through L to RX, and derived from at least one inorganic oxide selected from the group consisting of talc, clay, SiO 2 , Al 2 O 3 , MgO, ZrO 2 , TiO 2 , Fe 2 O 3 , B 2 O 3 , CaO, ZnO, BaO, ThO 2 ; aluminum phosphate gel; polyvinylchloride; and hydroxy substituted polystyrene; L is selected from the group consisting of oxygen, carbon, sulfur, nitrogen, and mixtures thereof and is derived from the carrier; X represents halogen; and R is selected from at least one member of the group consisting of aryl and alkenyl.
Claim 2
Dependent Claim
121 words
A catalyst support composition represented by the following formula Carrier-L-RX wherein the Carrier, which has a surface, is porous, covalently bonded through L to RX, and derived from at least one inorganic oxide selected from the group consisting of talc, clay, SiO 2 , Al 2 O 3 , MgO, ZrO 2 , TiO 2 , Fe 2 O 3 , B 2 O 3 , CaO, ZnO, BaO, ThO 2 ; aluminum phosphate gel; polyvinylchloride; and hydroxy substituted polystyrene; L is selected from the group consisting of oxygen, carbon, sulfur, nitrogen, and mixtures thereof and is derived from the carrier; X represents halogen; and R is selected from at least one member of the group consisting of aryl and alkenyl.
Claim 3
Dependent Claim
33 words
The catalyst support according to claim 1 wherein the R in the RX is selected from the group consisting of C 1 -C 20 alkenyl C 6 -C 20 aryl, and mixtures thereof.
Claim 4
Dependent Claim
38 words
The catalyst support according to claim 2 wherein the R is selected from the group consisting of; phenyl substituted with methyl, ethyl, n-propyl; iso-propyl; n-butyl, n-octyl, or 2-ethylhexyl; p-tolyl; benzyl; 4-t-butylphenyl; 2,6-dimethylphenyl; 3,5-dimethylphenyl; 2,4-dimethylphenyl; 2,3-dimethylphenyl; and mixtures thereof.
Claim 5
Dependent Claim
25 words
The catalyst support according to claim 2 wherein RX is selected from the group consisting of p-fluorophenyl, 3,5-difluorophenyl, pentafluorophenyl, 3,4,5-trifluorophenyl, and 3,5-bis(trifluoromethyl)phenyl and mixtures thereof.
Claim 6
Dependent Claim
33 words
The catalyst support according to claim 1 wherein the amount of RX on the Carrier surface is greater than 0 and equal to or less than about 10 mmol per gram of Carrier.
Claim 7
Dependent Claim
31 words
The catalyst support according to claim 1 wherein the amount of RX on the Carrier surface is in the range of about 0.1 to about 5 mmol per gram of Carrier.
Claim 8
Dependent Claim
26 words
The catalyst support according to claim 1 wherein the amount of RX is in the range of about 1.0 to 3.0 mmol per gram of Carrier.
Claim 9
Dependent Claim
27 words
A method of making the catalytic support according to claim 1 comprising reacting Carrier with RX in the presence of a base to prepare a halogenated support.
Claim 10
Dependent Claim
44 words
The method of claim 8, wherein said method comprises using a base selected from the group consisting of metal hydroxide, primary, secondary and tertiary amine, metal alkyl and mixtures thereof, wherein said metal is selected from Groups 1 and 2 of the Periodic Table.
Claim 11
Dependent Claim
26 words
The method of claim 9, wherein said method comprises using a base selected from the group consisting of NaOH, n-butyllithium, dibutylmagnesium, triethylamine, tributylamine and mixtures thereof.
Claim 12
Dependent Claim
20 words
The method of claim 8, wherein the reaction of the Carrier and RX is performed in a non-aqueous organic solvent.
Claim 13
Dependent Claim
24 words
The method of claim 11, wherein the non-aqueous solvent is selected from the group consisting of hexane, tetrahydrofuran, toluene, ethane, heptane and mixtures thereof.
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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) | 2002-03-22 | 2002-09-21 | 2003-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-03-22 | 2006-09-21 | 2007-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-03-22 | 2010-09-21 | 2011-03-23 | $7700.00 | Window Closed / Lapsed |