US4399055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carrier of catalyst and catalyst component composed of the carrier, for polymerization of olefins, as well as processes for production thereof
Assignee: Mitsubishi Chemical Corp
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Filing: 1982-04-22
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Granted: 1983-08-16
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Expires: 2002-04-22
Abstract
Abstract A carrier of catalysts for polymerization of olefins is disclosed, which is produced from a magnesium halide and which is characterized by its granulometric properties. Production of a catalyst component for polymerization of olefins which comprises the carrier is also disclosed.
Inventors
- 👤 Mitsuyuki Matsuura
- 👤 Takashi Fujita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:14
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
162 words
A carrier of a catalyst for polymerization of olefins which is a catalyst carrier of solid particles produced from a magnesium halide, characterized in that the carrier is composed of tertiary particles each constituted by a large number of fine secondary particles, each of said secondary particles is constituted by a large number of very fine primary particles included therein, and the carrier composed of said tertiary particles has: (a) a specific area in a range of 0.1 to 10 m 2 /g, (b) a void volume formed by pores of not more than 10,000 A of not more than 0.5 ml/g, (c) a ratio of the average diameter of the tertiary particles to that of the secondary particles in a range of 50 to 200, and (d) a ratio of the specific surface area of the carrier to that of a sphere having a diameter corresponding to the particle diameter of the tertiary particles in a range of 1 to 10.
Claim 2
Dependent Claim
162 words
A carrier of a catalyst for polymerization of olefins which is a catalyst carrier of solid particles produced from a magnesium halide, characterized in that the carrier is composed of tertiary particles each constituted by a large number of fine secondary particles, each of said secondary particles is constituted by a large number of very fine primary particles included therein, and the carrier composed of said tertiary particles has: (a) a specific area in a range of 0.1 to 10 m 2 /g, (b) a void volume formed by pores of not more than 10,000 A of not more than 0.5 ml/g, (c) a ratio of the average diameter of the tertiary particles to that of the secondary particles in a range of 50 to 200, and (d) a ratio of the specific surface area of the carrier to that of a sphere having a diameter corresponding to the particle diameter of the tertiary particles in a range of 1 to 10.
Claim 3
Dependent Claim
23 words
The carrier according to claim 1, in which the specific surface area is in the range of 0.5 to 5 m 2 /g.
Claim 4
Dependent Claim
27 words
The carrier according to claim 1, in which the void volume formed by the pores of not more than 10,000 A is not more than 0.3 ml/g.
Claim 5
Dependent Claim
32 words
The carrier according to claim 1, in which the ratio of the average diameter of the teritary particles to that of the secondary particles is in a range of 100 to 150.
Claim 6
Dependent Claim
104 words
The carrier according to claim 1, in which the carrier has: (a) a specific area in a range of 0.5 to 5 m 2 /g, (b) a void volume formed by pores of not more than 10,000 A of not more than 0.3 ml/g, (c) a ratio of the average diameter of the tertiary particles to that of the secondary particles in a range of 100 to 150, and (d) a ratio of the specific surface area of the carrier to that of a sphere having a diameter corresponding to the particle diameter of the tertiary particles in a range of 1 to 10.
Claim 7
Dependent Claim
95 words
A catalyst component for polymerization of olefins which is prepared by contacting at least one component of three components (D), (E) and (F) with the catalyst carrier of any of claims 1 through 5, the component (D) being a liquid titanium compound, which must contain a halogen in the case where this component is used alone or in combination with the component (F), the component (E) being a silicon halide compound, and the component (F) being a polymeric silicone compound having a structural unit represented by the formula ##STR4## wherein R° is a hydrocarbon residue.
Claim 8
Dependent Claim
54 words
A process for producing a carrier of a catalyst for polymerization of olefins, which comprises preparing a homogeneous solution by contacting (a) a magnesium dihalide with (b) a titanic acid ester or a polytitanic acid ester, contacting the resulting homogeneous solution with (c) a polymeric silicone compound, and separating out a solid carrier component.
Claim 9
Dependent Claim
54 words
A process for producing a carrier of a catalyst for polymerization of olefins, which comprises preparing a homogeneous solution by contacting (a) a magnesium dihalide with (b) a titanic acid ester or a polytitanic acid ester, contacting the resulting homogeneous solution with (c) a polymeric silicone compound, and separating out a solid carrier component.
Claim 10
Dependent Claim
47 words
The process according to claim 7, in which the ratio of (b)/(a) in the homogeneous solution is in a range of from 1 to 20 and the polymeric silicone compound is used in such a ratio that (c)/(b) is in a range of from 1 to 20.
Claim 11
Dependent Claim
25 words
The process according to claim 8, in which the ratio (b)/(a) is from 2 to 5, and the ratio (c)/(b) is from 1 to 5.
Claim 12
Dependent Claim
29 words
The process according to claim 7, in which the steps of contacting the components (a), (b) and (c) are carried out at a temperature of 0° to 100° C.
Claim 13
Dependent Claim
136 words
A process for producing a catalyst component for polymerization of olefins which comprises: the steps of contacting (a) a magnesium dihalide with (b) a titanic acid ester or a polytitanic acid ester to prepare a homogeneous solution thereof, and contacting (c) a polymeric silicone compound with the resulting homogeneous solution to separate out a carrier, and a step of contacting at least one component of three components (D), (E) and (F) with the resulting carrier, the component (D) being a liquid titanium compound which must contain a halogen in the case where this component is used alone or in combination with the component (F), the component (E) being a silicone halide compound, and the component (F) being a polymeric silicone compound having a structural unit represented by the formula ##STR5## wherein R° is a hydrocarbon residue.
Claim 14
Dependent Claim
136 words
A process for producing a catalyst component for polymerization of olefins which comprises: the steps of contacting (a) a magnesium dihalide with (b) a titanic acid ester or a polytitanic acid ester to prepare a homogeneous solution thereof, and contacting (c) a polymeric silicone compound with the resulting homogeneous solution to separate out a carrier, and a step of contacting at least one component of three components (D), (E) and (F) with the resulting carrier, the component (D) being a liquid titanium compound which must contain a halogen in the case where this component is used alone or in combination with the component (F), the component (E) being a silicone halide compound, and the component (F) being a polymeric silicone compound having a structural unit represented by the formula ##STR5## wherein R° is a hydrocarbon residue.
Claim 15
Dependent Claim
16 words
The process according to claim 11, in which TiCl 4 is contacted with the homogeneous solution.
Claim 16
Dependent Claim
19 words
The process according to claim 11, in which TiCl 4 and SiCl 4 are contacted with the homogeneous solution.
Claim 17
Dependent Claim
35 words
The process according to claim 11, in which the ratio of (b)/(a) is in a range of from 2 to 10 and the ratio of (c)/(b) is in a range of from 1 to 20.
Claim 18
Dependent Claim
35 words
The process according to claim 11, in which the ratio of (b)/(a) is in a range of from 2 to 5 and the ratio of (c)/(b) is in a range of from 2 to 5.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-15 | 1987-02-14 | 1987-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-15 | 1991-02-14 | 1991-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-15 | 1995-02-14 | 1995-08-16 | $7700.00 | Window Closed / Lapsed |