US4562173A
Expired / Lapsed
US
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Catalyst component for the polymerization of olefins and catalyst therefor
Assignee: Toho Titanium Co Ltd
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Filing: 1984-11-28
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Granted: 1985-12-31
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Expires: 2004-11-28
Abstract
Abstract A catalyst for the polymerization of olefins comprising: (A) a catalyst component obtained by a process comprising contacting (a) a fatty acid salt of magnesium, (b) a carbonate of magnesium or a substance containing said carbonate, (c) diester of an aromatic dicarboxylic acid, and (d) a titanium halide of the general formula: TiX 4 , wherein X represents a halogen atom; (B) a silicon compound represented by the general formula: SiR m (OR') 4-m , wherein R is hydrogen, alkyl group or aryl group, R' is alkyl group or aryl group, and m is represented as O≦m≦4; and (C) an organoaluminium compound. Polymerization of olefins by use of the catalyst provides such advantages as high polymerization activity per unit weight of the catalyst component, prolonged polymerization activity, high yield of stereoregular polymer, and a produced polymer free of such an estereal odor as in the prior art, and having high bulk density as well as uniform particle size and shape.
Inventors
- 👤 Minoru Terano
- 👤 Kouhei Kimura
- 👤 Atsushi Murai
- 👤 Masuo Inoue
- 👤 Katsuyoshi Miyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:06
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
127 words
A catalyst component (A) for the polymerization of olefins obtained by a process comprising contacting (a) a fatty acid salt of magnesium and (b) a carbonate of magnesium or a substance containing said carbonate, (c) diester of an aromatic dicarboxylic acid, and (d) a titanium halide of the general formula: TiX 4 , wherein X represents a halogen atom (hereinafter may be referred to as a titanium halide), said catalyst component being used in combination with (B) a silicon compound represented by the general formula: SiR m (OR') 4-m , wherein R is hydrogen, alkyl group, or aryl group, R' is alkyl group or aryl group, and m is represented as 0≦m≦4 (hereinafter may be referred to as a silicon compound), and with (C) an organoaluminium compound.
Claim 2
Dependent Claim
127 words
A catalyst component (A) for the polymerization of olefins obtained by a process comprising contacting (a) a fatty acid salt of magnesium and (b) a carbonate of magnesium or a substance containing said carbonate, (c) diester of an aromatic dicarboxylic acid, and (d) a titanium halide of the general formula: TiX 4 , wherein X represents a halogen atom (hereinafter may be referred to as a titanium halide), said catalyst component being used in combination with (B) a silicon compound represented by the general formula: SiR m (OR') 4-m , wherein R is hydrogen, alkyl group, or aryl group, R' is alkyl group or aryl group, and m is represented as 0≦m≦4 (hereinafter may be referred to as a silicon compound), and with (C) an organoaluminium compound.
Claim 3
Dependent Claim
36 words
A catalyst component according to claim 1, wherein said catalyst component is prepared by a process which comprises pretreating the ingredients (a), (b) and (c), and mixing for contact the resulting mixture with the ingredient (d).
Claim 4
Dependent Claim
28 words
A catalyst component according to claim 2, wherein said pretreatment is effected by copulverization, suspension into a halogenated hydrocarbon, or by mixing for contact in an organic solvent.
Claim 5
Dependent Claim
42 words
A catalyst component according to claim 1, wherein said catalyst component is prepared by a process which comprises mixing for contact the ingredients (a), (b) and (d) with each other, and mixing for contact the resultant reaction mixture with the ingredient (c).
Claim 6
Dependent Claim
29 words
A catalyst component according to claim 1, wherein said catalyst component is prepared by a process which comprises mixing for contact the ingredients (a), (b), (c) and (d) simultaneously.
Claim 7
Dependent Claim
43 words
A catalyst component according to claim 1, wherein said catalyst component is prepared by a process which comprises contacting any two ingredients of the ingredients (a), (b), (c) and (d) with each other to be mixed for contact with the remaining two ingredients.
Claim 8
Dependent Claim
27 words
A catalyst component according to claim 1, wherein a surface active agent is added at any time in the course of the preparation of the catalyst component.
Claim 9
Dependent Claim
21 words
A catalyst component according to claim 1, wherein said fatty acid salt of magnesium is saturated fatty acid salt of magnesium.
Claim 10
Dependent Claim
27 words
A catalyst component according to claim 8, wherein said saturated fatty acid salt of magnesium is selected from magnesium stearate, magnesium octanoate, magnesium decanoate and magnesium laurate.
Claim 11
Dependent Claim
21 words
A catalyst component according to claim 1, wherein said ingredient (b) is selected from basic magnesium carbonate, magnesium carbonate and hydrotalcite.
Claim 12
Dependent Claim
23 words
A catalyst component according to claim 1, wherein diester of aromatic dicarboxylic acid is selected from diester of phthalic acid or terephthalic acid.
Claim 13
Dependent Claim
33 words
A catalyst component according to claim 11, wherein diester of phthalic acid or terephthalic acid is selected from dimethylphthalate, dimethylterephthalate, diethylphthalate, diethylterephthalate, dipropylphthalate, dipropylterephthalate, dibutylphthalate, dibutylterephthalate, diisobutylphthalate, diamylphthalate, diisoamylphthalate, ethylbutylphthalate, ethylisobutylphthalate and ethylpropylphthalate.
Claim 14
Dependent Claim
14 words
A catalyst component according to claim 1, wherein said titanium halide is titanium tetrachloride.
Claim 15
Dependent Claim
17 words
A catalyst component according to claim 1, wherein said silicon compound is selected from phenyl and alkylalkoxysilane.
Claim 16
Dependent Claim
17 words
A catalyst component according to claim 1, wherein said organoaluminium compound is selected from triethylaluminium and triisobutylaluminium.
Claim 17
Dependent Claim
121 words
A catalyst for the polymerization of olefins comprising: (A) a catalyst component obtained by a process comprising contacting (a) a fatty acid salt of magnesium and (b) a carbonate of magnesium or a substance containing said carbonate, (c) diester of an aromatic dicarboxylic acid, and (d) a titanium halide of the general formula: TiX 4 , wherein X represents a halogen atom (hereinafter may be referred to as a titanium halide), (B) a silicon compound represented by the general formula: SiR m (OR') 4-m , wherein R is hydrogen, alkyl group, or aryl group, R' is alkyl group or aryl group, and m is represented as 0≦m≦4 (hereinafter may be referred to as a silicon compound), and (C) an organoaluminium compound.
Claim 18
Dependent Claim
121 words
A catalyst for the polymerization of olefins comprising: (A) a catalyst component obtained by a process comprising contacting (a) a fatty acid salt of magnesium and (b) a carbonate of magnesium or a substance containing said carbonate, (c) diester of an aromatic dicarboxylic acid, and (d) a titanium halide of the general formula: TiX 4 , wherein X represents a halogen atom (hereinafter may be referred to as a titanium halide), (B) a silicon compound represented by the general formula: SiR m (OR') 4-m , wherein R is hydrogen, alkyl group, or aryl group, R' is alkyl group or aryl group, and m is represented as 0≦m≦4 (hereinafter may be referred to as a silicon compound), and (C) an organoaluminium compound.
Claim 19
Dependent Claim
112 words
A catalyst according to claim 16, wherein said catalyst component is prepared by: (i) a process which comprises pretreating the ingredients (a), (b) and (c), and mixing for contact the resulting mixture with the ingredient (d); (ii) a process which comprises mixing for contact the ingredients (a), (b) and (d) with each other, and mixing for contact the resultant reaction mixture with the ingredient (c); (iii) a process which comprises mixing for contact the ingredients (a), (b), (c) and (d) simultaneously; or (iv) a process which comprises contacting any two ingredients of the ingredients (a), (b), (c) and (d) with each other to be mixed for contact with the remaining two ingredients.
Claim 20
Dependent Claim
16 words
A catalyst according to claim 16, wherein said silicon compound is selected from phenyl and alkylalkoxysilane.
Claim 21
Dependent Claim
12 words
A catalyst according to claim 16, wherein said organoaluminium compound is trialkylaluminium.
Claim 22
Dependent Claim
15 words
A catalyst according to claim 19, wherein said trialkylaluminium is selected from triethylaluminium and triisobutylaluminium.
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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) | 1988-12-30 | 1989-07-01 | 1989-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-30 | 1993-07-01 | 1993-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-30 | 1997-07-01 | 1997-12-31 | $7700.00 | Window Closed / Lapsed |