US4079175A — Method for the polymerization or copolymerization…

Claim 1

Independent Claim 171 words

A method which comprises polymerizing or copolymerizing α-olefins in the presence of a catalyst system comprising the following components A and B: component A: reformed titanium trichloride prepared by co-pulverizing a mixture consisting of (1) an organoaluminum compound of the formula AlRnX 3-n , wherein R represents a hydrocarbon radical of 1 - 8 carbon atoms, n is equal to or less than three but greater than zero, and X represents halogen, and (2) a crystalline or solid solution titanium trichloride compound consisting essentially of titanium trichloride and aluminum trichloride, the weight ratio of the organoaluminum compound to the crystalline or solid solution titanium trichloride compound being from 0.1 : 100 to 25 : 100, treating the resultant co-pulverized mixture with at least one solvent selected from the group consisting of aromatic hydrocarbons, aromatic hydrocarbon halides and organic ethers, separating the treated material from the solvent, and heating the separated material at a temperature of from 50° to 200° C for from 0.5 to 5 hours; component B: an organoaluminum compound.

Claim 2

Independent Claim 171 words

A method which comprises polymerizing or copolymerizing α-olefins in the presence of a catalyst system comprising the following components A and B: component A: reformed titanium trichloride prepared by co-pulverizing a mixture consisting of (1) an organoaluminum compound of the formula AlRnX 3-n , wherein R represents a hydrocarbon radical of 1 - 8 carbon atoms, n is equal to or less than three but greater than zero, and X represents halogen, and (2) a crystalline or solid solution titanium trichloride compound consisting essentially of titanium trichloride and aluminum trichloride, the weight ratio of the organoaluminum compound to the crystalline or solid solution titanium trichloride compound being from 0.1 : 100 to 25 : 100, treating the resultant co-pulverized mixture with at least one solvent selected from the group consisting of aromatic hydrocarbons, aromatic hydrocarbon halides and organic ethers, separating the treated material from the solvent, and heating the separated material at a temperature of from 50° to 200° C for from 0.5 to 5 hours; component B: an organoaluminum compound.

Claim 3

Dependent Claim 29 words

The method as defined in claim 1, employing a crystalline titanium trichloride compound which is obtained by reducing titanium tetrachloride with metal aluminum in the presence of aluminum trichloride.

Claim 4

Dependent Claim 39 words

The method as defined in claim 1, employing a solid solution titanium trichloride compound which is obtained by reducing titanium tetrachloride with hydrogen to obtain titanium trichloride, admixing the titanium trichloride with aluminum trichloride, and pulverizing the resultant mixture.

Claim 5

Dependent Claim 58 words

The method as defined in claim 1, wherein said organoaluminum compound used in preparing component A is at least one member selected from the group consisting of triethyl aluminum, tri-n-propyl aluminum, tri-n-butyl aluminum, triisobutyl aluminum, tri-2-methyl-pentyl aluminum, tri-n-octyl aluminum, diethyl aluminum chloride, diisobutyl aluminum chloride, methyl aluminum sesquichloride, ethyl aluminum sesquichloride, isobutyl aluminum dichloride and ethyl aluminum dichloride.

Claim 6

Dependent Claim 23 words

The method as defined in claim 1, wherein the aromatic nucleus of said aromatic hydrocarbons is unsubstituted or substituted by a hydrocarbon radical.

Claim 7

Dependent Claim 32 words

The method as defined in claim 1, wherein said aromatic hydrocarbon is at least one member selected from the group consisting of benzene, toluene, xylene, ethylbenzene, propylbenzene, butylbenzene, pentylbenzene, ethyltoluene and butyltoluene.

Claim 8

Dependent Claim 18 words

The method as defined in claim 1, wherein said aromatic hydrocarbon halides contain more than one halogen atom.

Claim 9

Dependent Claim 32 words

The method as defined in claim 1, wherein said aromatic hydrocarbon halide is at least one member selected from the group consisting of chlorobenzene, dichlorobenzene, bromobenzene, dibromobenzene, fluorobenzene, chlorotoluene, bromotoluene and fluorotoluene.

Claim 10

Dependent Claim 60 words

The method as defined in claim 1, wherein said organic ether contains 4 to 12 carbon atoms. 10. The method as defined in claim 1, wherein said organic ether is at least one member selected from the group consisting of ethylether, propylether, butylether, n-amylether, isoamylether, hexylether, ethylpropyl ether, ethyl isobutylether, ethylisopropylether, ethylisoamylether, ethylphenylether, ethylpropargyether, phenylether, ethyleneglycolmonomethylether, ethyleneglycoldimethylether, diethyleneglycoldiethylether, ethyleneglycolmonoethylether and

Claim 11

Dependent Claim 20 words

ethyleneglycoldiethylether. 11. The method as defined in claim 1, wherein said heating treatment for obtaining said reformed titanium trichloride is

Claim 12

Dependent Claim 53 words

carried out at a pressure between 1 and 760 mmHg. 12. The method as defined in claim 1, wherein said organoaluminum compound used as said component B is at least one member selected from the group consisting of triethyl aluminum, diethyl aluminum chloride, ethyl aluminum dichloride, ethyl aluminum sesquichloride, triisobutyl aluminum and diisobutyl

Claim 13

Dependent Claim 153 words

aluminum chloride. 13. A method for manufacturing a component of a catalyst for the polymerization of α-olefins which comprises co-pulverizing a mixture consisting of (1) an organoaluminum compound of the formula AlRnX 3-n , wherein R represents a hydrocarbon radical of 1 - 8 carbon atoms, n is equal to or less than three but greater than zero, and X represents halogen, and (2) a crystalline or solid solution titanium trichloride compound comprising titanium trichloride and aluminum trichloride, the weight ratio of the organoaluminum compound to the crystalline or solid solution titanium trichloride compound being from 0.1 : 100 to 25 : 100, treating the resultant co-pulverized mixture with at least one solvent selected from the group consisting of aromatic hydrocarbons and aromatic hydrocarbon halides, separating the treated material from the solvent and heating the separated material at a temperature of from 50° to 200° C for from 0.5 to 5 hours to

Claim 14

Dependent Claim 153 words

aluminum chloride. 13. A method for manufacturing a component of a catalyst for the polymerization of α-olefins which comprises co-pulverizing a mixture consisting of (1) an organoaluminum compound of the formula AlRnX 3-n , wherein R represents a hydrocarbon radical of 1 - 8 carbon atoms, n is equal to or less than three but greater than zero, and X represents halogen, and (2) a crystalline or solid solution titanium trichloride compound comprising titanium trichloride and aluminum trichloride, the weight ratio of the organoaluminum compound to the crystalline or solid solution titanium trichloride compound being from 0.1 : 100 to 25 : 100, treating the resultant co-pulverized mixture with at least one solvent selected from the group consisting of aromatic hydrocarbons and aromatic hydrocarbon halides, separating the treated material from the solvent and heating the separated material at a temperature of from 50° to 200° C for from 0.5 to 5 hours to

Claim 15

Dependent Claim 142 words

obtain a reformed titanium trichloride. 14. A method for manufacturing a component of a catalyst for the polymerization of α-olefins which comprises co-pulverizing a mixture consisting of (1) an organoaluminum compound of the formula AlRnX 3-n , wherein R represents a hydrocarbon radical of 1 - 8 carbon atoms, n is equal to or less than three but greater than zero, and X represents halogen, and (2) a crystalline or solid solution titanium trichloride compound comprising titanium trichloride and aluminum trichloride, the weight ratio of the organoaluminum compound to the crystalline or solid solution titanium trichloride compound being from 0.1 : 100 to 25 : 100, treating the resultant co-pulverized mixture with an organic ether solvent, separating the treated material from the solvent and heating the separated material at a temperature of from 50° to 200° C for from 0.5 to 5

Claim 16

Dependent Claim 142 words

obtain a reformed titanium trichloride. 14. A method for manufacturing a component of a catalyst for the polymerization of α-olefins which comprises co-pulverizing a mixture consisting of (1) an organoaluminum compound of the formula AlRnX 3-n , wherein R represents a hydrocarbon radical of 1 - 8 carbon atoms, n is equal to or less than three but greater than zero, and X represents halogen, and (2) a crystalline or solid solution titanium trichloride compound comprising titanium trichloride and aluminum trichloride, the weight ratio of the organoaluminum compound to the crystalline or solid solution titanium trichloride compound being from 0.1 : 100 to 25 : 100, treating the resultant co-pulverized mixture with an organic ether solvent, separating the treated material from the solvent and heating the separated material at a temperature of from 50° to 200° C for from 0.5 to 5

Claim 17

Dependent Claim 47 words

hours to obtain a reformed titanium trichloride. 15. The method as defined in claim 1, wherein the treatment of the co-pulverized mixture with the solvent is carried out by treating the co-pulverized mixture with a solvent system consisting of at least one solvent selected from the group

Claim 18

Dependent Claim 53 words

consisting of aromatic hydrocarbons and aromatic hydrocarbon halides. 16. The method as defined in claim 13, wherein the treatment of the co-pulverized mixture with the solvent is carried out by treating the co-pulverized mixture with a solvent system consisting of at least one solvent selected from the group consisting of aromatic hydrocarbons and

Claim 19

Dependent Claim 37 words

aromatic hydrocarbon halides. 17. The method as defined in claim 14, wherein the treatment of the co-pulverized mixture with the solvent is carried out by treating the co-pulverized mixture with a solvent consisting of an organic ether.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1981-03-13	1981-09-12	1982-03-14	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1985-03-13	1985-09-12	1986-03-14	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1989-03-13	1989-09-12	1990-03-14	$7700.00	Window Closed / Lapsed

Method for the polymerization or copolymerization of α-olefin

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