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US4497905A
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Olefin polymerization catalyst compositions and polymerization process
Assignee: Union Carbide Chemicals and Plastics Technology LLC
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Filing: 1983-10-13
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Granted: 1985-02-05
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Expires: 2003-10-13
Abstract
Abstract A highly active and stereoselective olefin polymerization catalyst component is obtained by halogenating a magnesium compound of the formula MgR'R'' wherein R' is an alkoxide or aryloxide group and R'' is an alkoxide or aryloxide group or halogen, with a halide of tetravalent titanium in the presence of a halohydrocarbon, and contacting the halogenated product with thionyl chloride and a tetravalent titanium compound.
Inventors
- 👤 Kenzie Nozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:58
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
106 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryloxide group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; and (d) contacting the resulting washed product with thionyl chloride at a temperature of about 40° to about 140° C.
Claim 2
Independent Claim
106 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryloxide group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; and (d) contacting the resulting washed product with thionyl chloride at a temperature of about 40° to about 140° C.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein said magnesium compound is a magnesium dialkoxide.
Claim 4
Dependent Claim
11 words
The method of claim 2 wherein said halohydrocarbon is a chlorohydrocarbon.
Claim 5
Dependent Claim
13 words
The method of claim 2 wherein said electron donor is an aromatic ester.
Claim 6
Dependent Claim
31 words
The method of claim 1 wherein the thionyl chloride-treated product of step (d) is additionally contacted with a tetravalent titanium halide at a temperature of about 40° to about 140° C.
Claim 7
Dependent Claim
11 words
The solid catalyst component recovered from the method of claim 1.
Claim 8
Independent Claim
129 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryloxide group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; (d) contacting the resulting washed product with a tetravalent titanium halide at a temperature of about 40° to about 140° C.; and (e) contacting the resulting tetravalent titanium halide-treated product with thionyl chloride at a temperature of about 40° to about 140° C.
Claim 9
Independent Claim
129 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryloxide group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; (d) contacting the resulting washed product with a tetravalent titanium halide at a temperature of about 40° to about 140° C.; and (e) contacting the resulting tetravalent titanium halide-treated product with thionyl chloride at a temperature of about 40° to about 140° C.
Claim 10
Dependent Claim
13 words
The method of claim 7 wherein said magnesium compound is a magnesium dialkoxide.
Claim 11
Dependent Claim
11 words
The method of claim 8 wherein said halohydrocarbon is a chlorohydrocarbon.
Claim 12
Dependent Claim
13 words
The method of claim 8 wherein said electron donor is an aromatic ester.
Claim 13
Dependent Claim
31 words
The method of claim 7 wherein the thionyl chloride-treated product of step (e) is additionally contacted with a tetravalent titanium halide at a temperature of about 40° to about 140° C.
Claim 14
Dependent Claim
11 words
The solid catalyst component recovered from the method of claim 7.
Claim 15
Independent Claim
114 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryl group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; and (d) contacting the resulting washed product with a mixture of a tetravalent titanium halide and thionyl chloride at a temperature of about 40° to about 140° C.
Claim 16
Independent Claim
114 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryl group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; and (d) contacting the resulting washed product with a mixture of a tetravalent titanium halide and thionyl chloride at a temperature of about 40° to about 140° C.
Claim 17
Dependent Claim
13 words
The method of claim 13 wherein said magnesium compound is a magnesium dialkoxide.
Claim 18
Dependent Claim
11 words
The method of claim 14 wherein said halohydrocarbon is a chlorohydrocarbon.
Claim 19
Dependent Claim
13 words
The method of claim 14 wherein said electron donor is an aromatic ester.
Claim 20
Dependent Claim
32 words
The method of claim 13 wherein the product of step (d) is contacted with an additional amount of a tetravalent titanium halide at a temperature of about 40° to about 140° C.
Claim 21
Dependent Claim
11 words
The solid catalyst component recovered from the method of claim 13.
Claim 22
Independent Claim
137 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryloxide group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; (d) contacting the resulting washed product with a tetravalent titanium halide at a temperature of about 40° to about 140° C.; and (e) contacting the resulting tetravalent titanium halide-treated product with a mixture of a tetravalent titanium halide and thionyl chloride at a temperature of about 40° to about 140° C.
Claim 23
Independent Claim
137 words
A method for producing an improved olefin polymerization catalyst component, which method comprises: (a) halogenating a magnesium compound of the formula MgR'R" where R' is an alkoxide or aryloxide group and R" is an alkoxide or aryloxide group or halogen, with a tetravalent titanium halide in the presence of a halohydrocarbon and an electron donor, therein forming a halogenated product; (b) recovering said halogenated product; (c) washing said recovered halogenated product with a wash liquid selected from the group consisting of inert hydrocarbon liquids and halohydrocarbons; (d) contacting the resulting washed product with a tetravalent titanium halide at a temperature of about 40° to about 140° C.; and (e) contacting the resulting tetravalent titanium halide-treated product with a mixture of a tetravalent titanium halide and thionyl chloride at a temperature of about 40° to about 140° C.
Claim 24
Dependent Claim
13 words
The method of claim 19 wherein said magnesium compound is a magnesium dialkoxide.
Claim 25
Dependent Claim
11 words
The method of claim 20 wherein said halohydrocarbon is a chlorohydrocarbon.
Claim 26
Dependent Claim
13 words
The method of claim 20 wherein said electron donor is an aromatic ester.
Claim 27
Dependent Claim
32 words
The method of claim 19 wherein the product of step (e) is contacted with an additional amount of a tetravalent titanium halide at a temperature of about 40° to about 140° C.
Claim 28
Dependent Claim
11 words
The solid catalyst component recovered from the method of claim 19.
Claim 29
Dependent Claim
34 words
An olefin polymerization catalyst composition comprising an organoaluminum compound, an electron donor, and the solid component according to claim 6 in which the atomic ratio of aluminum to titanium is from 1:1 to 150:1.
Claim 30
Dependent Claim
34 words
An olefin polymerization catalyst composition comprising an organoaluminum compound, an electron donor, and the solid component according to claim 12 in which the atomic ratio of aluminum to titanium is from 1:1 to 150:1.
Claim 31
Dependent Claim
34 words
An olefin polymerization catalyst composition comprising an organoaluminum compound, an electron donor, and the solid component according to claim 18 in which the atomic ratio of aluminum to titanium is from 1:1 to 150:1.
Claim 32
Dependent Claim
34 words
An olefin polymerization catalyst composition comprising an organoaluminum compound, an electron donor, and the solid component according to claim 24 in which the atomic ratio of aluminum to titanium is from 1:1 to 150:1.
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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) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |