Carbocationic catalysts and process for using said catalysts

Details Carbocationic catalysts and process for using said catalysts Carbocationic catalysts and process for using said catalysts

1993-09-03

1994-09-27

Nagumo, Mark

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Organic compound containing

502167, 502171, 502150, 576 91, 576135, 576147, 576192, 576195, 576226, B01J 3114

Patent

active

053507266

ABSTRACT:
A carbocationic catalyst composition comprising an initiator of water, a tertiary alkyl or aralkyl halide, ester, ether, carboxylic acid, acid halide or a polymeric halide and a co-initiator of an alkoxy metal halide, is used to produce narrow molecular weight distribution olefin polymers particularly isobutylene/para-methyl-styrene copolymers.

REFERENCES:
patent: 2491116 (1949-12-01), Krauss et al.
patent: 3480559 (1969-11-01), Burk, Jr. et al
patent: 4219691 (1980-08-01), Mandai et al.
patent: 4276394 (1981-06-01), Kennedy et al.
patent: 4711866 (1987-12-01), Kuntz
patent: 4946899 (1990-08-01), Kennedy et al.
T. C. Chung and A. Kumar "Carbocationic Polymerization of Isobutylene by Using Supported Lewis Acid Catalyst on Polypropylene" Polymer Bulletin 28, 123-128(1992).

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