Patent US4550095A successfully refreshed from Google Patents.
US4550095A
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US
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Catalyst component for polymerization of olefins
Assignee: Tonen General Sekiyu KK
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Filing: 1984-08-20
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Granted: 1985-10-29
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Expires: 2004-08-20
Abstract
Abstract A titanium halide containing catalyst component for polymerization of olefins which is prepared by reacting a magnesium hydrocarbyloxide with a silicon compound having a hydrogen-silicon bond, contacting the reaction product with an electron donor compound, contacting the resulting contact product two or more times with a titanium halide and between one of the multiple titanium halide contacts, contacting the titanium halide contacted solid with a halogenated hydrocarbon.
Inventors
- 👤 Masafumi Imai
- 👤 Tadashi Yamamoto
- 👤 Hiroyuki Furuhashi
- 👤 Hiroshi Ueno
- 👤 Naomi Inaba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:36
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
98 words
A catalyst component for the polymerization of olefins obtained by (1) reacting (A) Mg(OR)(OR') with (B) a silicon compound having at least one silicon-hydrogen bond (2) contacting the reaction product with (C) an electron donor compound (D), (3) contacting the resulting contact product two or more times with a titanium halide, and (4) between at least one of the multiple titanium halide contacts, contacting the titanium halide contacted solid with a halogenated hydrocarbon wherein R and R' are radicals selected from alkyl, alkenyl, cycloalkyl, aryl, and aralkyl radicals and R and R' may be the same or different.
Claim 2
Dependent Claim
98 words
A catalyst component for the polymerization of olefins obtained by (1) reacting (A) Mg(OR)(OR') with (B) a silicon compound having at least one silicon-hydrogen bond (2) contacting the reaction product with (C) an electron donor compound (D), (3) contacting the resulting contact product two or more times with a titanium halide, and (4) between at least one of the multiple titanium halide contacts, contacting the titanium halide contacted solid with a halogenated hydrocarbon wherein R and R' are radicals selected from alkyl, alkenyl, cycloalkyl, aryl, and aralkyl radicals and R and R' may be the same or different.
Claim 3
Dependent Claim
44 words
The catalyst component of claim 1 wherein the reaction product obtained from step (3) is contacted with the titanium halide two times and the halogenated hydrocarbon employed between the two titanium halide contact steps is one of hexachloroethane, hexachlorobenzene, monochlorobenzenes, 1,2-dichloroethane, carbontetrachloride and tribromobenzene.
Claim 4
Dependent Claim
26 words
The catalyst component of claim 1 wherein the electron donor compound is one of carboxylic acids, esters, carboxylic acid anhydrides, carboxylic acid halides, alcohols and ethers.
Claim 5
Dependent Claim
13 words
The catalyst component of claim 1 wherein the titanium halide is titanium tetrachloride.
Claim 6
Dependent Claim
44 words
The catalyst component of claim 4 wherein R and R' are alkyl radicals having from 1 to 8 carbon atoms, the silicon compound is a hydrosilane, the electron donor is an alkyl ester of an aromatic carboxylic acid and the halogenated hydrocarbon is hexachloroethane.
Claim 7
Dependent Claim
12 words
The catalyst component of claim 5 wherein R and R' are ethyl.
Claim 8
Dependent Claim
11 words
The catalyst component of claim 6 wherein the hydrosilane is trichlorosilane.
Claim 9
Dependent Claim
19 words
A catalyst system for the polymerization of olefins comprising the catalyst component of claim 1 and an organoaluminum cocatalyst.
Claim 10
Dependent Claim
19 words
A catalyst system for the polymerization of olefins comprising the catalyst component of claim 2 and an organoaluminum cocatalyst.
Claim 11
Dependent Claim
19 words
A catalyst system for the polymerization of olefins comprising the catalyst component of claim 3 and an organoaluminum cocatalyst.
Claim 12
Dependent Claim
19 words
A catalyst system for the polymerization of alpha-olefins comprising the catalyst component of claim 4 and an organoaluminum cocatalyst.
Claim 13
Dependent Claim
19 words
A catalyst system for the polymerization of alpha-olefins comprising the catalyst component of claim 5 and an organoaluminum cocatalyst.
Claim 14
Dependent Claim
19 words
A catalyst system for the polymerization of alpha-olefins comprising the catalyst component of claim 6 and an organoaluminum catalyst.
Claim 15
Dependent Claim
19 words
A catalyst system for the polymerization of alpha-olefins comprising the catalyst component of claim 7 and an organoaluminum cocatalyst.
Claim 16
Dependent Claim
54 words
A catalyst component for the polymerization of olefins obtained by (1) reacting (a) magnesium diethoxide with (b) trichlorosilane, (2) contacting the reaction product with (c) ethylbenzoate, (3) contacting the resulting contact product with (d) titanium tetrachloride, (4) contacting the titanium tetrachloride contacted product with (e) hexachloroethane, and (5) finally contacting with (f) titanium tetrachloride.
Claim 17
Dependent Claim
54 words
A catalyst component for the polymerization of olefins obtained by (1) reacting (a) magnesium diethoxide with (b) trichlorosilane, (2) contacting the reaction product with (c) ethylbenzoate, (3) contacting the resulting contact product with (d) titanium tetrachloride, (4) contacting the titanium tetrachloride contacted product with (e) hexachloroethane, and (5) finally contacting with (f) titanium tetrachloride.
Claim 18
Dependent Claim
92 words
The catalyst component of claim 15 wherein 1 mole of component (a) is contacted with 0.5 to 10 mole component (b), the electron donor is used in an amount of 0.01 to 10 gram mol per gram atom of magnesium in the reaction product of (a) and (b), component (d) is used in an amount more than 0.1 gram mole for 1 gram atom of magnesium in the contact product and component (e) is used in an amount of more than 0.1 mole per 1 gram atom of magnesium in the solid.
Claim 19
Dependent Claim
52 words
The catalyst component of claim 15 wherein component (d) is used in an amount of 1 to 50 gram mole to 1 gram atom of magnesium in the contact product and component (e) is used in an amount of 0.5 to 200 mole to 1 grams atom of magnesium in the solid.
Claim 20
Dependent Claim
19 words
A catalyst system for the polymerization of olefins comprising the catalyst component of claim 15 and an organoaluminum cocatalyst.
Claim 21
Dependent Claim
19 words
A catalyst system for the polymerization of olefins comprising the catalyst component of claim 16 and an organoaluminum cocatalyst.
Claim 22
Dependent Claim
19 words
A catalyst system for the polymerization of olefins comprising the catalyst component of claim 17 and an organoaluminum cocatalyst.
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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) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |