Soon Young Lee

US Patent:

57705399, Jun 23, 1998

Filed:

Jan 18, 1996

Appl. No.:

8/588276

Inventors:

Frank Joung-Yei Chen - Edison NJ
Tze-Chiang Chung - State College PA
Jon Edmond Stanat - Westfield NJ
Soon Hong Lee - State College PA

Assignee:

Exxon Chemical Patents Inc. - Linden NJ

International Classification:

B01J 3100

US Classification:

502152

Abstract:

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"; R. sup. 1 represents hydrogen, C. sub. 1 -C. sub. 24 alkyl, C. sub. 3 -C. sub. 24 cycloalkyl, C. sub. 6 -C. sub. 18 aryl or C. sub. 7 -C. sub.

US Patent:

56914318, Nov 25, 1997

Filed:

Dec 2, 1996

Appl. No.:

8/758511

Inventors:

Frank Joung-Yei Chen - Edison NJ
Tze-Chiang Chung - State College PA
Jon Edmond Stanat - Westfield NJ
Soon Hong Lee - State College PA

Assignee:

Exxon Chemical Patents Inc. - Linden NJ

International Classification:

C08F 452
C08F 402
C08F 1008

US Classification:

526135

Abstract:

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.