Exxon Chemical Patents, Inc.

Exxon Research and Engineering Company

Other

Frank J Chen

Jon E Stanat

Tze-Chiang Chung

Herve M Cheradame

Christophe Le Deore

Alok Kumar

Alain M Guyot

Robert D Lundberg

David J Martella

John J Jaruzelski

Thierry Hamaide

Gerard Rissoan

Roger Spitz

Darrell W Brownawell

Alain Louis Lenack

Soon Hong Lee

Jean De Habimana

Behrooz R Tabar

Hung A Nguyen

Alan Guyot

Cezar S Baula

Antonio Gutierrez

Jacob I Emert

Alexis A Oswald

Ricardo A Bloch

Max J Wisotsky

John D Ou

Gregory C Giffin

Ramon L Espino

Kuo L Peng

Ven Pinjala

A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon a least one strong Lewis acid comprising at least one metal salt of a strong Bronsted acid wherein the metal is selected from the group consisting of aluminum, boron gallium, antimony, tantalum, niobium, yttrium, cobalt, nickel, iron, tin, zinc, magnesium barium strontium, calcium, tungsten, molybdenum and the metals of the lanthanide series and wherein the strong Bronsted acid is selected from the group consisting of mineral and organic acids stronger than 100% sulfuric acid.

Supported Lewis acid catalysts derived from superacids useful for

The present invention includes related methods and uses, including composition comprising the polymer derived from a monomer having the formula:

Amorphous olefin polymers, copolymers, methods of preparation and

A supported Lewis acid catalyst, which comprises an inorganic oxide substrate having immobilized thereon at least one Lewis acid and a modifying agent containing at least one functional moiety capable of reacting with surface hydroxyl groups originally present on said substrate and which is effective as a catalyst for hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed.

Supported Lewis acid catalyst polymerization process

A solid state insoluble salt catalyst system for the carbocationic polymerization of olefin monomer in the presence of a polar or non-polar reaction medium, which comprises (a) solid state catalyst component comprising at least one salt of a strong acid and a carbocationically active transition metal selected from Groups III A, IV A, V A and VI A of the Periodic Table of Elements, wherein said salt is insoluble in the reaction medium; and (b) cocatalyst component effective for promoting the carbocationic polymerization.

Heterogeneous Lewis acid-type catalysts

Heterogeneous lewis acid-type catalysts

Supported Lewis acid catalysts for hydrocarbon conversion reactions

Supported lewis acid catalysts derived from superacids useful for

Immobilized Lewis Acid catalyst comprising porous polymer film substrate having at least one Lewis Acid immobilized on pore surfaces thereof, said polymer film substrate prior to having said Lewis Acid immobilized thereon comprising a porous film of functionalized polymer and, optionally, unfunctionalized polymer, said functionalized polymer having within its structure units represented by the formula ##STR1## and said unfunctionalized polymer having within its structure repeating monomer units represented by the formula ##STR2## wherein D represents OH, halide, NH.sub.2, NHR.sup.3, OM', or OM';

Lewis acid catalysts supported on porous polymer substrate

An immobilized Lewis Acid catalyst system for the carbocationic polymerization of olefin monomer is provided. The catalyst comprises a porous polymer support having catalytically active Lewis Acid residue bonded to the surface of the support including the pore surfaces.

Cationic polymerization catalyzed by lewis acid catalysts supported on

'Heterogeneous lewis acid-type catalysts'

A supported Lewis acid catalyst system for catalyzing hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed, wherein the catalyst system comprises an inorganic oxide support having immobilized thereon at least one relatively strong Lewis acid and at least one relatively weak Lewis acid.

Supported lewis acid catalysts for hydrocarbon conversion reactions

A method is provided for the direct synthesis by living cationic polymerization of novel polymeric materials functionalized with desirable nitrogen-containing functional groups such as terminal azido, cyano, carbonylamino, cyanato, thiocyanato or thiocarbonylamino groups. Polymerization and functionalization occur in a substantially simultaneous manner. All necessary reactants for the functionalization are present when polymerization is initiated. The nitrogen-containing functional group is provided as a part of a molecule having a release moiety which is preferably resonance stabilized or a tertiary alkyl type and which acts to aid the nitrogen-containing species in functioning as a leaving group.

Direct synthesis by living cationic polymerization of

Immobilized Lewis Acid catalyst comprising polymer having at least one Lewis Acid immobilized within the structure therein, said polymer having monomer units represented by the structural formula: ##STR1## wherein a represents about 1 to about 99 mole %

Immobilized Lewis Acid catalysts

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Edison, NJ, United States of America

Frank J Chen