# US 5,344,984 A · Method for preparing "twin-tailed" polyoxyalkylene tertiary amines

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- Number: US 5,344,984 A
- Document ID: US5344984A
- Status: Granted
- Kind: A
- Application number: 08/045,284
- Filed: 1993-04-08
- Granted: 1994-09-06
- Earliest claimed: 1990-01-24
- Assignees: Texaco Chemical Company
- Inventors: John F. Knifton; Carter G. Naylor
- Web page: https://patentgrep.com/patent/US5344984A

## CPC

- C07C 213/02: by reactions involving the formation of amino groups from compounds containing hydroxy groups or etherified or esterified hydroxy groups
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS

## Abstract

A method for preparing "twin-tailed" tertiary amines which have two moles of alkoxylated phenol bonded to each nitrogen function of a molecule of methylamine and represented by the formula: ##STR1## wherein x represents zero to about 30 which comprises alkylating a mole of methylamine with two moles of alkoxylated alkylphenol over a catalyst comprising: 5 to 70% nickel; 1 to 20% copper; 0.1 to 10% chromium; and 0.1 to 10% molybdenum on an alumina support.

## Claims

### Claim 1

A method for the synthesis of polyoxyalkylene tertiary amines having two moles of alkoxylated alkylphenol bonded to each tertiary nitrogen function which comprises:
alkylating a mole of methylamine with two moles of alkoxylated alkylphenol over a catalyst consisting essentially of;
5 to 70% nickel;
1 to 20% copper;
0.1 to 10% chromium; and
0.1 to 10% molybdenum on an alumina support, at a temperature of 150.degree. C. to 300.degree. C. and a pressure of 100 to 5000 psi.

### Claim 2 (depends on 1)

The method of claim 1 wherein the alkylphenol is ethoxylated nonylphenol.