Patent EP0230707A2 successfully refreshed from Google Patents.
EP0230707A2
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EP
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Manufacturing method of polyolefin
Assignee: Tosoh Corp
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Filing: 1986-04-10
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Granted: —
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Expires: 2006-04-10
Abstract
Abstract A manufacturing method of polyolefin is disclosed wherein the catalyst used for the polymerization of α-olefins at a temperature lower than the melting point of polymer in the precence of said Ziegler type catalyst and hydrogen comprises of (A) solid catalyst ingredient (A) obtained by allowing the reaction product of (i) at least one of metallic mangnesium and hydroxylated organic compounds and oxygen-containing organic compounds of magnesium, (ii) at least one oxygen-containing organic compound of titanium, (iii) at least one organoaluminum compound, and/or (iv) at least one silicon compound to react with (v) at least one halogenated aluminum compound, (B) at least one catalyst ingredient (B) selected from organometallic compounds, the metal of which belongs to la, Ila, IIb, Illb or IVb group in the periodic table, and (C) at least one kind of catalyst ingredient (C) selected from halogen-containing compounds comprising halogenated hydrocarbons, halogens, interhalogenous compounds and halides of aluminum, tin, lead, phosphorus, antimony and sulfur.
Inventors
- 👤 Yozo Kondo
- 👤 Mitsuhiro Mori
- 👤 Yutaka Naito
- 👤 Hideyuki Takitani
- 👤 Toshikazu Chikusa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 09:18
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
170 words
A method for the manufacture of a polyolefin wherein an a-olefin is polymerised at a reaction temperature lower than the melting point of polymer in the presenceof a catalyst and hydrogen characterised in that the catalyst is a Ziegler type catalyst which comprises: (A) solid catalyst ingredient (A) obtained by allowing the reaction product of (i) at least one member selected from metallic magnesium and hydroxylated organic compounds and oxygen-containing organic compounds of magnesium, (ii) at least one oxygen-containing organic compound of titanium, (iii) at least one organoaluminum compound, and/or (v) at least one silicon compound to react with (v) at least one halogenated aluminum compound, (B) at least one catalyst ingredient (B) selected from a group of organometallic compounds, the metal of which belong, to la, lla, lib, IIIb or IVb group in the periodic table, and (C) at least one catalyst ingredient (C) selected from a group of halogen-containing compounds comprising halogenated hydrocarbon compounds, halogens, inter halogenous compounds and halides of aluminum, tin, lead, phosphorus, antimony and sulfur.
Claim 2
Independent Claim
170 words
A method for the manufacture of a polyolefin wherein an a-olefin is polymerised at a reaction temperature lower than the melting point of polymer in the presenceof a catalyst and hydrogen characterised in that the catalyst is a Ziegler type catalyst which comprises: (A) solid catalyst ingredient (A) obtained by allowing the reaction product of (i) at least one member selected from metallic magnesium and hydroxylated organic compounds and oxygen-containing organic compounds of magnesium, (ii) at least one oxygen-containing organic compound of titanium, (iii) at least one organoaluminum compound, and/or (v) at least one silicon compound to react with (v) at least one halogenated aluminum compound, (B) at least one catalyst ingredient (B) selected from a group of organometallic compounds, the metal of which belong, to la, lla, lib, IIIb or IVb group in the periodic table, and (C) at least one catalyst ingredient (C) selected from a group of halogen-containing compounds comprising halogenated hydrocarbon compounds, halogens, inter halogenous compounds and halides of aluminum, tin, lead, phosphorus, antimony and sulfur.
Claim 3
Dependent Claim
82 words
A method according to claim 1, characterised in that the solid catalyst ingredient (A) is a solid reaction product obtained by allowing, with a homogeneous solution involving (i) at least one member selected from a group comprising metallic magnesium and hydroxylated organic compounds and (ii) at least one oxygen-containing organic compound of titanium, to react with (iii) at least one organoaluminum compound, then (iv) at least one silicon compound, and thereafter to react further with (v) at least one halogenated aluminum compound.
Claim 4
Dependent Claim
64 words
A method according to claim 2, characterised in that the gram atom of magnesium (Mg), the gram atom of titanium in titanium compounds (Ti), the gram equivalent of alkoxyl group or aryloxyl group in silicon compounds (S) when using silicon compounds having alkoxyl group or aryloxyl group, and the gram atom of halogen (X) are selected so as to satisfy following two equations. and
Claim 5
Independent Claim
37 words
A method according to any of claims 1 to 3, wherein the organoaluminum compounds (iii) are compounds represented by a general formula R 3 AI (wherein R' indicates an alkyl group having 1 to 20 carbon atoms).
Claim 6
Independent Claim
59 words
A method according to any of claims 1 to 3, wherein the organoaluminum compounds (iii) are compounds represented by a general formula R AlY 3-n (wherein R' indicates an alkyl group having 1 to 20 carbon atoms, Y indicates an alkoxyl, aryloxyl or cycloalkoxyl group or a halogen atom, and n indicates a number, 1 S n < 3).
Claim 7
Independent Claim
52 words
A method according to any of claims 1 to 5, wherein the hydroxylated organic compounds (i) are alcohols, and at least one member selected from mixtures of straight chain aliphatic alcohol having 2 to 18 carbon atoms with branched chain aliphatic alcohol having 3 to 18 carbon atoms used as the alcohol.
Claim 8
Independent Claim
19 words
A method according to any of claims 1 to 6, wherein the silicon compounds (iv) are polysiloxanes or silanes.
Claim 9
Independent Claim
38 words
A method according to any of claims 1 to 7, wherein the catalyst ingredient (C) is at least one ingredient selected from halogenated aliphatic hydrocarbon compounds having 1 to 12 carbon atoms and 2 to 4 halogen atom.
Claim 10
Dependent Claim
20 words
A method according to claim 8, wherein the halogenated aliphatic hydrocarbon compound is selected from compounds having 2 halogen atoms.
Claim 11
Independent Claim
64 words
A method according to any of claims 1 to 9, wherein the metal in the organometallic compounds of catalyst ingredient (B) is aluminum, and the amounts of catalyst ingredient (B) and catalyst ingredient (C) for use are selected so as the atomic ratio of halogen to aluminum present in the catalyst ingredient (B) and catalyst ingredient (C) to be 0<X/Al ≦1 (X is halogen)
Claim 12
Independent Claim
44 words
A method according to any of claims 1 to 10, wherein the polymerization of olefins is conducted through a plurality of polymerization processes consisting of a process providing a relatively low molecular weight component and a process providing a relatively high molecular weight component.
References Cited (Backward Citations)
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