EP0166970A2
Expired / Lapsed
EP
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Catalyst component for polymerization of olefins and process for production thereof
Assignee: Mitsubishi Chemical Corp
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Filing: 1985-05-30
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Granted: —
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Expires: 2005-05-30
Abstract
Abstract A catalyst component for polymerization of olefins, which consists essentially of a particulate contact reaction product of an average particle size of 10 to 100 microns, obtained by contacting the surfaces of particles of a product of contact reaction with a magnesium halide and an alkoxy group-containing compound of a metal of Group I, II, III or IV of the Periodic Table with an alcohol compound and contacting the resulting contact reaction product with a liquid titanium halide. This catalyst component has a high activity and provides a polymer having a relatively large particle size and a narrow particle size distribution.
Inventors
- 👤 Mitsuyuki Matsuura
- 👤 Takashi Fujita
- 👤 Yoshio Sakamoto
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 23:08
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
93 words
A catalyst component for polymerization of olefins, which consists essentially of a reaction product obtained by contacting the surfaces of particles of a product of contact reaction between (A) a halide of magnesium and (B) an alkoxy group-containing compound of a metal selected from Groups I through IV of the Periodic Table with (C) an alcohol compound and contacting the resulting contact reaction product with (D) a liquid titanium halide, and which is in the form of particles of an average particle size in the range of from 10 microns to 100 microns.
Claim 2
Dependent Claim
93 words
A catalyst component for polymerization of olefins, which consists essentially of a reaction product obtained by contacting the surfaces of particles of a product of contact reaction between (A) a halide of magnesium and (B) an alkoxy group-containing compound of a metal selected from Groups I through IV of the Periodic Table with (C) an alcohol compound and contacting the resulting contact reaction product with (D) a liquid titanium halide, and which is in the form of particles of an average particle size in the range of from 10 microns to 100 microns.
Claim 3
Dependent Claim
38 words
A catalyst component as set forth in claim 1, wherein: the halide of magnesium (A) is magnesium chloride; the alkoxy group-containing metal compound (B) is an alkoxy group-containing titanium compound; and the liquid titanium halide is titanium tetrachloride.
Claim 4
Dependent Claim
68 words
A catalyst component as set forth in claim 1 or 2, which is obtained by adding (F) an inorganic metal halide to the halide of magnesium (A) and the alkoxy group-containing metal compound (B) to form a contact reaction product, contacting the surfaces of the contact reaction product thus obtained with the alcohol compound (C) and contacting the resulting contact reaction product with the liquid titanium halide (D).
Claim 5
Dependent Claim
65 words
A catalyst component as set forth in any one of the preceding claims, which is obtained by contacting the surfaces of particles of the product of contact reaction between the halide of magnesium (A) and the alkoxy group-containing metal compound (B) with the alcohol compound (C) and contacting the resulting contact reaction product with the liquid titanium halide (D) and a polymeric silicon compound (E).
Claim 6
Dependent Claim
34 words
A catalyst composition as set forth in any one of the preceding claims, wherein a treatment with an electron donor is carried out before or after the contact reaction with the alcohol compound (C).
Claim 7
Dependent Claim
104 words
A process for the preparation of a catalyst component for polymerization of olefins, which comprises contacting (A) a powdery halide of magnesium with (B) an alkoxy group-containing compound of a metal selected from metals of Groups I through IV of the Periodic Table to form a solid contact reaction product, adding (C) an alcohol compound in the form of fine droplets to the solid contact reaction product to carry out a contact treatment, and contacting the resulting contact reaction product with (D) a liquid titanium halide to obtain a catalyst component in particulate form of an average particle size of 10 to 100 microns.
Claim 8
Dependent Claim
104 words
A process for the preparation of a catalyst component for polymerization of olefins, which comprises contacting (A) a powdery halide of magnesium with (B) an alkoxy group-containing compound of a metal selected from metals of Groups I through IV of the Periodic Table to form a solid contact reaction product, adding (C) an alcohol compound in the form of fine droplets to the solid contact reaction product to carry out a contact treatment, and contacting the resulting contact reaction product with (D) a liquid titanium halide to obtain a catalyst component in particulate form of an average particle size of 10 to 100 microns.
Claim 9
Dependent Claim
84 words
A process according to claim 6, wherein: a treatment with (F) an inorganic metal halide is carried out simultaneously with or subsequently to the treatment of the powdery halide of magnesium (A) with the alkoxy group-containing metal compound (B) to form a contact reaction product; the alcohol compound (C) is added in the form of fine droplets to the obtained contact reaction product to carry out the contact treatment; and the resulting contact reaction product is then contacted with the liquid titanium halide (D).
Claim 10
Dependent Claim
75 words
A process according to claim 6 or 7, wherein: the powdery halide of magnesium (A) is contacted with the alkoxy group-containing metal compound (B) to form a contact reaction product; the alcohol compound (C) is added in the form of fine droplets to the contact reaction product thus obtained to carry out the contact treatment; and the resulting contact reaction product is contacted with the liquid titanium halide (D) and a polymeric silicon compound (E).
Claim 11
Dependent Claim
96 words
A process according to any one of the preceding claims, wherein: a treatment with (F) an inorganic metal halide is carried out simultaneously with or subsequently to the contact treatment of the powdery halide of magnesium (A) with the alkoxy group-containing metal compound (B) to form a contact reaction product; the alcohol compound (C) is added in the form of fine liquid drops to the contact reaction product thus obtained to carry out the contact treatment; and the resulting contact reaction product is contacted with the liquid titanium halide (D) and a polymeric silicon compound (E).
Claim 12
Dependent Claim
39 words
A process according to any one of the preceding claims, wherein: the halide of magnesium (A) is magnesium chloride; the alkoxy group-containing metal compound is an alkoxy group-containing titanium compound; and the liquid titanium halide (D) is titanium tetrachloride.
Claim 13
Dependent Claim
108 words
A process according any one of the preceding claims, wherein the amounts added of the alkoxy group-containing metal compound (B), the alcohol compound (C) and the liquid titanium halide (D) are such that: the molar ratio of the compound (B) to the halide of magnesium (A) is in the range of from 1 x 10 -3 to 50; the molar ratio of the compound (C) to the halide of magnesium (A) is in the range of from 1 x 10-4 to 1; and the molar ratio of the compound (D) to the halide of magnesium (A) is in the range of from 1 x 10 -3 to 50.
Claim 14
Dependent Claim
136 words
A process according to claim 7, wherein the amounts added of the alkoxy group-containing metal compound (B), the inorganic metal halide (F), the alcohol compound (C) and the liquid titanium halide (D) are such that: the molar ratio of the compound (B) to the halide of magnesium (A) is in the range of from 1 x 10 -3 to 50; the molar ratio of the compound (F) to the halide of magnesium (A) is in the range of from 1 x 10 -4 to 1.0; the molar ratio of the compound (C) to the halide of magnesium (A) is in the range of from 1 x 10 -4 to 1; and the molar ratio of the liquid titanium halide (D) to the magnesium halide is in the range of from 1 x 10 -3 to 50.
Claim 15
Dependent Claim
138 words
A process according to claim 8, wherein the amounts added of the alkoxy group-containing metal compound (B), the alcohol compound (C), the liquid titanium halide (D) and the polymeric silicon compound (E) are such that: the molar ratio of the compound (B) to the halide of magnesium (A) is in the range of from 1 x 10 -3 to 50; the molar ratio of the compound (C) to the halide of magnesium (A) is in the range of from 1 x 10 -4 to 1; the molar ratio of the compound (D) to the halide of magnesium (A) is in the range of from 5 x 10 -2 to 4 x 10 ; and the molar ratio of the com- poumd (E) to the magnesium halide is in the range of from 1 x 10- 3 to 50.
Claim 16
Dependent Claim
167 words
A process according to claim 9, wherein the amounts added of the alkoxy group-containing metal compound (B), the inorganic metal halide (F), the alcohol compound (C), the liquid titanium halide (D) and the polymeric silicon compound (E) are such that: the molar ratio of the compound (B) to the halide of magnesium (A) is in the range of from 1 x 10 -3 to 50; the molar ratio of the compound (F) to the halide of magnesium (A) is in the range of from 1 x 10-4 to 1.0; the molar ratio of the compound (C) to the halide of magnesium (A) is in the range of from 1 x 10-4 to 1; the molar ratio of the compound (D) to the halide of magnesium (A) is in the range of from 5 x 10 -2 to 4 x 10 ; and the molar ratio of the compound (E) to the halide of magnesium (A) is in the range of from 1 x 10 -3 to 50.
References Cited (Backward Citations)
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