Terpolymer alkylated phenol

Details Terpolymer alkylated phenol Terpolymer alkylated phenol

1976-03-15

1978-01-24

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260619B, 260620, 260624C, C07C 3714, C07C 3912, C07C 3917, C07C 3918

Patent

active

040704025

ABSTRACT:
Phenols alkylated with high molecular weight ethylene-propylene-diene terpolymers are obtained in essentially quantitative yields and with no measurable fragmentation of terpolymer by reacting terpolymer with a large excess of phenol, in the presence of BF.sub.3 as catalyst, at alkylation temperatures of about 170.degree.-300.degree. F. The preferred terpolymers consist essentially of about 35-45 mole percent propylene, 65-55 mole percent ethylene, and about 1.0-2.5 mole percent of a 5-alkenyl-2-norbornene such as 5-ethylidene-2-norbornene. The novel terpolymer alkylated phenol compositions are useful as intermediates for the preparation of multifunctional addition agents for lubricating oils, for example addition agents having combined dispersant-viscosity index improving properties.

REFERENCES:
patent: 3873627 (1975-03-01), Lee et al.
patent: 3876709 (1975-04-01), Lee et al.

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