Process for the preparation of polyisobutyl hydroxyaromatics

Details Process for the preparation of polyisobutyl hydroxyaromatics Process for the preparation of polyisobutyl hydroxyaromatics

1992-12-28

1994-04-05

Kight, III, John

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

528392, 568790, 568793, C07C 3700

Patent

active

053007018

ABSTRACT:
A process for the preparation of a polyisobutyl hydroxyaromatic compound which comprises alkylating a hydroxyaromatic compound in the presence of an acidic alkylation catalyst with a polyisobutene having a number average molecular weight in the range of about 300 to 5,000 and wherein the polyisobutene contains at least about 70% of a methylvinylidene isomer.

REFERENCES:
patent: 3849085 (1974-11-01), Kreuz et al.
patent: 4231759 (1980-11-01), Udelhofen et al.
patent: 4238628 (1980-12-01), Cahill et al.
patent: 5175225 (1992-12-01), Ruhe, Jr.
patent: 5192335 (1993-03-01), Cherpeck

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