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1. (WO1991005810) OLEFIN POLYMERIZATION CATALYST FROM TRIALKYLALUMINUM MIXTURE, SILICA GEL AND A METALLOCENE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/005810 International Application No.: PCT/US1990/005769
Publication Date: 02.05.1991 International Filing Date: 09.10.1990
Chapter 2 Demand Filed: 15.05.1991
IPC:
C08F 4/659 (2006.01) ,C08F 4/6592 (2006.01) ,C08F 10/00 (2006.01)
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4
Polymerisation catalysts
42
Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44
selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
60
together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof
62
Refractory metals or compounds thereof
64
Titanium, zirconium, hafnium, or compounds thereof
659
Component covered by group C08F4/6455
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
4
Polymerisation catalysts
42
Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
44
selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides
60
together with refractory metals, iron group metals, platinum group metals, manganese, technetium, rhenium, or compounds thereof
62
Refractory metals or compounds thereof
64
Titanium, zirconium, hafnium, or compounds thereof
659
Component covered by group C08F4/6455
6592
containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
10
Homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
Applicants:
EXXON CHEMICAL PATENTS INC. [US/US]; 1900 East Linden Avenue Linden, NJ 07036, US
Inventors:
CHANG, Main; US
Agent:
KURTZMAN, Myron, B.; Exxon Chemical Company 1900 East Linden Avenue Linden, NJ 07036 , US
NORTHOVER, Robert, Frank; Exxon Chemical Limited Exxon Chemical Technology Centre PO Box 1 Abingdon Oxfordshire OX13 6BB, GB
Priority Data:
422,35716.10.1989US
Title (EN) OLEFIN POLYMERIZATION CATALYST FROM TRIALKYLALUMINUM MIXTURE, SILICA GEL AND A METALLOCENE
(FR) CATALYSEUR DE POLYMERISATION D'OLEFINES OBTENU A PARTIR D'UN MELANGE DE TRIALYLE ALUMINIUM, DE GEL DE SILICE ET D'UN METALLOCENE
Abstract:
(EN) A high activity alumoxane-metallocene supported catalyst for the polymerization of 1-olefins prepared by reacting undehydrated silica gel with a mixture of trimethylaluminum and triisobutylaluminum to produce a silica-alumoxane product which is then reacted with a Group IVB and/or Group VB metallocene to produce an active catalyst which may be obtained in powder form, suitable for use in gas or slurry phase reactors, by a removal of solvents and drying.
(FR) Un catalyseur très actif, à support d'alumoxane-métallocène, pour la polymérisation de 1-oléfines est préparé en faisant réagir un gel de silice non déshydraté avec un mélange de triméthyle aluminium et de triisobutylealuminium pour obtenir un produit de silice-alumoxane que l'on fait réagir ensuite avec un métallocène du groupe IVB et/ou du groupe VB de manière à obtenir un catalyseur actif sous forme de poudre appropriée à une utilisation dans des réacteurs de phase gazeuse ou boueuse, par élimination de solvants et par séchage.
Designated States: AU, BR, CA, FI, HU, JP, KR, NO, SU
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0495849CA2067177KR1019927003650AU1990065308