ACTIVATION OF TITANIUM AND VANADIUM CATALYST USEFUL FOR ETHYLENE POLYMERIZATION

Title:

ACTIVATION OF TITANIUM AND VANADIUM CATALYST USEFUL FOR ETHYLENE POLYMERIZATION

Document Type and Number:

Japanese Patent JPS62253605

Kind Code:

A

Abstract:

A process for activating a titanium or vanadium com. pound and producing a polyethylene comprising (i) dissolving a divalent magnesium halide and a Lewis acid having the formula R_mAlX_n or R_mBX_n wherein R is an alkyl or aromatic radical, each radical having 1 to 12 carbon atoms and each R being alike or different; X is a halogen atom; m is an integer from 0 to 3; n is an integer from 0 to 3; and m+n equals 3, in an excess of electron donor compound selected from alkyl esters of alkyl and aromatic carboxylic acids and alkyl and cycloalkyl ethers, each compound having 2 to 12 carbon atoms, in such a mannerthat a magnesium halide/Lewis acid/ electron donor complex is formed; (ii) separating the complex from excess electron donor compound; and (iii) introducing (a) the complex, the titanium or vanadium compound, and a hydrocarbyl aluminum compound and (b) ethylene into a reactor in such a manner that the titanium or vanadium compound is activated and polyethylene is produced.

Inventors:

KEBIN JIYOZEFU KIYAN
DEIBITSUDO RUKASU MAIRUZU
FUREDERITSUKU JIYON KARORU

Application Number:

JP4157387A

Publication Date:

November 05, 1987

Filing Date:

February 26, 1987

Export Citation:

Click for automatic bibliography generation Help

Assignee:

UNION CARBIDE CORP

International Classes:

C08F4/02; C08F4/60; C08F4/62; C08F4/639; C08F4/64; C08F10/00; C08F10/02; (IPC1-7): C08F4/62; C08F10/02

Attorney, Agent or Firm:

Motohiro Kurauchi

Previous Patent: PRODUCTION OF OLEFIN POLYMERIZING OR COPOLYMERIZING CATALYST

Next Patent: VINYL-AROMATIC TERPENE-PHENOL TERPOLYMER