CA1139737A
Expired / Lapsed
CA
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Process for producing olefin polymers or copolymers and catalyst therefor
Assignee: Mitsui Chemicals Inc
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Filing: 1980-02-06
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Granted: 1983-01-18
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Expires: 2000-02-06
Abstract
Abstract ABSTRACT OF THE DISCLOSURE In a process for producing an olefin polymer or copolymer by polymerizing an alpha-olefin having at least 3 carbon atoms or copolymerizing such alpha-olefins with each other or such an alpha-olefin with up to 20 mol % of ethylene and/or a diene in the presence of a catalyst comprising (1) a solid titanium catalyst component having magnesium, halogen, titanium, phosphorus and a carboxylic acid ester and (2) and organometallic compound of a metal of Groups I to III of the Mendelejeff's periodic table; the improvement wherein said catalyst is composed of (A) the solid titanium catalyst component (1) in which the molar ratio of the phosphorus to the carboxylic acid ester is from about 0.05 to about 2 and which has a speci-fic surface area of not less than about 40 m2/g, (B) the organometallic compound (2), and (C) an electron donor; and a catalyst used for aforsesaid process.
Inventors
- 👤 Yoshihisa Ushida
- 👤 Akinori Toyota
- 👤 Norio Kashiwa
Bibliographic Details
Application Number
—
Jurisdiction
CA
Data Source
google_patents
Last Synchronized
2026-10-23 20:57
CPC Classifications
C; C08; C08F; C08F10/00; Y; Y10; Y10S; Y10S526/00; Y10S526/905; Y10S526/906
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
141 words
In a process for producing an olefin polymer or copolymer by polymerizing an alpha-olefin having at least 3 carbon atoms or copolymerizing such alpha-olefins with each other or such an alpha-olefin with up to 20 mole% of ethylene and/or a diene in the presence of a catalyst comprising (1) a solid titanium catalyst component having magnesium, halogen, titanium, phosphorus and a carboxylic acid ester and (2) an organometallic compound of a metal of Groups I to III of the Mendelejeff's periodic table; the improvement wherein said catalyst is composed of (A) the solid titanium catalyst component (1) in which the molar ratio of the phosphorus to the carboxylic acid ester is from about 0,05 to about 2 and which has a specific surface area of not less than about 40 m2/g, (B) the organometallic. compound (2), and (C) an electron donor.
Claim 2
Dependent Claim
141 words
In a process for producing an olefin polymer or copolymer by polymerizing an alpha-olefin having at least 3 carbon atoms or copolymerizing such alpha-olefins with each other or such an alpha-olefin with up to 20 mole% of ethylene and/or a diene in the presence of a catalyst comprising (1) a solid titanium catalyst component having magnesium, halogen, titanium, phosphorus and a carboxylic acid ester and (2) an organometallic compound of a metal of Groups I to III of the Mendelejeff's periodic table; the improvement wherein said catalyst is composed of (A) the solid titanium catalyst component (1) in which the molar ratio of the phosphorus to the carboxylic acid ester is from about 0,05 to about 2 and which has a specific surface area of not less than about 40 m2/g, (B) the organometallic. compound (2), and (C) an electron donor.
Claim 3
Dependent Claim
63 words
The process of claim 1 wherein in said solid titanium catalyst component (A), the molar ratio of the magnesium to titanium is from about 3 to about 40, the molar ratio of the halogen to the titanium is from about 4 to about 100, and the molar ratio of the carboxylic acid ester to the titanium is from about 0.2 to about 10.
Claim 4
Dependent Claim
28 words
The process of claim 1 wherein at least 80% by weight of the titanium compound contained in said solid titanium catalyst component (A) is insoluble in boiling n-heptane.
Claim 5
Dependent Claim
14 words
The process of claim 1 wherein said organo-metallic compound (B) is an organoaluminum compound.
Claim 6
Dependent Claim
57 words
The process of claim 1 wherein said electron donor (C) is at least one member selected from the group consisting of amines, amides, ethers, ketones, nitriles, phosphines, stibines, arsines, phosphoramides, esters, thioethers, thioesters, said anhydrides, acid halides aldehydes, alcoholates, organic acids, and salts of organic acids with metals of Groups I to 4 of the periodic table.
Claim 7
Dependent Claim
25 words
The process of claim 1 wherein said. carboxylic acid ester in catalyst component (A) is a carboxylic acid ester having 2 to 40 carbon atoms.
Claim 8
Dependent Claim
69 words
The process of claim 1 wherein said catalyst component (A) is prepared by pulverizing a magnesium halide, a carboxylic acid ester and a phosphorus com-pound intensively by mechanical means in the absence or presence of at least one member selected from titanium compounds, inert carriers and pulverization aids, and contacting the pulverized product with a titanium halide compound liquid under the treating conditions in the absence of mechanical pulverization.
Claim 9
Dependent Claim
122 words
A catalyst for producing an olefin polymer or copolymer by polymerizing an alpha-olefin having at least 3 carbon atoms or copolymerizing such alpha-olefins with each other or such as alpha-olefin with up to 20 mole% of ethylene and/or a diene in the presence of a catalyst, said catalyst being composed of (A) a solid titanium catalyst component having magnesium, halogen, titanium, phosphorus and a carboxylic acid ester, the molar ratio of the phosphorus to the carboxylic acid ester being from about 0.05 to about 2, and said component (A) having a specific surface area of not less than 40 m2/g, (B) an organometallic compound of a metal of Groups I to III of the Mendelejeff's periodic table, and (C) an electron donor.
Claim 10
Dependent Claim
122 words
A catalyst for producing an olefin polymer or copolymer by polymerizing an alpha-olefin having at least 3 carbon atoms or copolymerizing such alpha-olefins with each other or such as alpha-olefin with up to 20 mole% of ethylene and/or a diene in the presence of a catalyst, said catalyst being composed of (A) a solid titanium catalyst component having magnesium, halogen, titanium, phosphorus and a carboxylic acid ester, the molar ratio of the phosphorus to the carboxylic acid ester being from about 0.05 to about 2, and said component (A) having a specific surface area of not less than 40 m2/g, (B) an organometallic compound of a metal of Groups I to III of the Mendelejeff's periodic table, and (C) an electron donor.
Claim 11
Dependent Claim
53 words
The catalyst of claim 8 wherein the molar ratio of the magnesium to titanium is from about 3 to about 40, the molar ratio of halogen to titanium is from about 4 to about 100, and the molar ratio of the carboxylic acid ester to titanium is from about 0.2 to about 10.
References Cited (Backward Citations)
No citation records indexed.
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