Dispersants derived from heavy polyamine and second amine

US5756431A · kind A · utility

Assignee

• Exxon Chemical Patents, Inc. · US

Inventors

• Jacob Emert · Brooklyn, US
• Joseph V. Cusumano · Watchung, US
• David C. Dankworth · Whitehouse Station, US
• William D. Diana · Montgomery, US
• William B. Eckstrom · Fanwood, US
• Keith R. Gorda · Little York, US
• Antonio Gutierrez · Mercerville, US
• Jon E. Stanat · Baton Rouge, US
• Warren A. Thaler · Matawan, US
• Stephen Zushma · Clinton, US

Key dates

• Filing date: May 25, 1995
• Grant date: May 26, 1998
• Expiry date: May 25, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M2217/06
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A Koch functionalized product, which is the reaction product of at least one hydrocarbon with carbon monoxide and a nucleophilic trapping agent, is derivatized with a heavy polyamine and a second amine. The hydrocarbon is a hydrocarbon compound or a hydrocarbon polymer. A heavy polyamine is a mixture of polyamines containing small amounts of lower polyamine oligomers such as tetraethylene pentamine and pentaethylenehexamine and containing primarily oligomers with more than 6 nitrogens and more extensive branching. Rubber seals embrittlement is reduced or minimized.