US4485186A
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Catalyst component for polymerization of olefins
Assignee: Tonen General Sekiyu KK
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Filing: 1982-09-15
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Granted: 1984-11-27
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Expires: 2002-09-15
Abstract
Abstract A catalyst component for polymerization of olefins which is prepared by bringing a magnesium alkoxide, a halogenated hydrocarbon, and a titanium compound into contact with one another. The catalyst component together with a organoaluminum cocatalyst is used for the polymerization of olefins and especially for the homopolymerization of ethylene and copolymerization of ethylene with an alpha -olefin having from 3 to 10 carbon atoms.
Inventors
- 👤 Hiroshi Ueno
- 👤 Tadanao Kohara
- 👤 Takeshi Nomura
- 👤 Kouji Maruyama
- 👤 Naomi Inaba
- 👤 Makota Yoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:32
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
75 words
A catalyst component for use in the polymerization of olefins which is obtained by contacting a magnesium compound represented by the formula Mg(OR)(OR'), a halogenated hydrocarbon having 2 or more carbon atoms selected from the group consisting of mono or polyhalogen substituted compound of saturated aliphatic or alicyclic hydrocarbons and a titanium compound, wherein R and R' are alkyl, alkenyl, cycloalkyl, aryl and aralkyl groups and R and R' may be the same or different.
Claim 2
Dependent Claim
75 words
A catalyst component for use in the polymerization of olefins which is obtained by contacting a magnesium compound represented by the formula Mg(OR)(OR'), a halogenated hydrocarbon having 2 or more carbon atoms selected from the group consisting of mono or polyhalogen substituted compound of saturated aliphatic or alicyclic hydrocarbons and a titanium compound, wherein R and R' are alkyl, alkenyl, cycloalkyl, aryl and aralkyl groups and R and R' may be the same or different.
Claim 3
Dependent Claim
23 words
The catalyst component of claim 1 wherein the magnesium compound and the halogenated hydrocarbon are contacted prior to contact with the titanium compound.
Claim 4
Dependent Claim
16 words
The catalyst component of claim 2 wherein the magnesium compound is contacted with a magnesium halide.
Claim 5
Dependent Claim
18 words
The catalyst component of claim 3 wherein the magnesium compound, magnesium halide and halogenated hydrocarbon are contacted simultaneously.
Claim 6
Dependent Claim
35 words
The catalyst component of claim 2 wherein the ratio of contacted product of magnesium and halogenated hydrocarbon to titanium compound is 1 gram atom of magnesium to 0.1 gram mol or greater of titanium compound.
Claim 7
Dependent Claim
29 words
The catalyst component of claim 3 wherein the magnesium compound, halogenated hydrocarbon and titanium compound are brought into contact in the ratio of about 1:0.0.1-20:0.1-10 on a mole basis.
Claim 8
Dependent Claim
54 words
The catalyst component of claim 1 wherein the titanium compound is represented by the formula Ti n (OR") x (X) y wherein R" is an alkyl or aryl group having from 1 to 6 carbon atoms, X is chloride or bromide, n is 2, 3 or 4 and the sum of x+y is n.
Claim 9
Dependent Claim
22 words
The catalyst component of claim 1 wherein the halogenated hydrocarbon is a mono-or polyhalogenated saturated hydrocarbon having 2 or 3 carbon atoms.
Claim 10
Dependent Claim
51 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 1 and an organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R"' is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 11
Dependent Claim
50 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 2 and organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R'" is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 12
Dependent Claim
50 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 3 and organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R'" is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 13
Dependent Claim
50 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 4 and organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R'" is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 14
Dependent Claim
50 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 5 and organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R"' is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 15
Dependent Claim
50 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 6 and organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R'" is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 16
Dependent Claim
50 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 7 and organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R'" is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 17
Dependent Claim
50 words
A catalyst for the polymerization of olefins comprising the catalyst component of claim 8 and organoaluminum compound represented by the formula R"' n AlX 3-n , wherein R'" is an alkyl or aryl group, X is a halogen, alkoxy group or hydrogen and n is in the range of 1≦n≦3.
Claim 18
Dependent Claim
58 words
A catalyst component for use in the polymerization of ethylene which is obtained by contacting a magnesium compound represented by the formula Mg(OR)(OR'), a halogenated aliphatic hydrocarbon having 2 or more carbon atoms and titanium tetrachloride, wherein R and R' are alkyl, alkenyl, cycloalkyl, aryl and aralkyl groups and R and R' may be the same or different.
Claim 19
Dependent Claim
58 words
A catalyst component for use in the polymerization of ethylene which is obtained by contacting a magnesium compound represented by the formula Mg(OR)(OR'), a halogenated aliphatic hydrocarbon having 2 or more carbon atoms and titanium tetrachloride, wherein R and R' are alkyl, alkenyl, cycloalkyl, aryl and aralkyl groups and R and R' may be the same or different.
Claim 20
Dependent Claim
17 words
A catalyst component in accordance with claim 17 wherein the magnesium compound is contacted with magnesium dichloride.
Claim 21
Dependent Claim
18 words
The catalyst component of claim 18 wherein the magnesium compound, magnesium halide and halogenated hydrocarbon are ball-milled simultaneously.
Claim 22
Dependent Claim
12 words
The catalyst component of claim 8 wherein the halogenated hydrocarbon is hexachloroethane.
Claim 23
Dependent Claim
13 words
The catalyst component of claim 17 wherein the halogenated aliphatic hydrocarbon is hexachloroethane.
References Cited (Backward Citations)
US3094568A
Cited
US3644318A
Cited
US4144390A
Cited
US4209601A
Cited
US4224183A
Cited
US4240929A
Cited
US4347161A
Cited
US4362648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-27 | 1988-05-28 | 1988-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-27 | 1992-05-28 | 1992-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-27 | 1996-05-28 | 1996-11-27 | $7700.00 | Window Closed / Lapsed |