Method of stabilizing mineral oil and its refinery products

US4090946A · kind A · utility

Assignee

• BASF SE

Inventors

• Guenther Nottes
• Klaus Bronstert · Eisenberg (Pfalz), DE
• Peter Klaerner · Battenberg, DE

Key dates

• Filing date: Jun 30, 1976
• Grant date: May 23, 1978
• Expiry date: Jun 30, 1996

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/2364
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The method of stabilizing mineral oil and its refinery products by addition thereto of a small stabilizing amount of alternating copolymers of the type EQU . . . A -- B -- A -- B -- A . . . in which A denotes the structural unit of the general formula EQU --C(R.sup.1)(R.sup.2) - CH.sub.2 -- where R.sup.1 denotes hydrogen or alkyl of from 1 to 8 carbon atoms and R.sup.2 has the meanings stated for R.sup.1 or denotes a phenyl group, and in which B stands for structural units of the general formulae ##STR1## where R.sup.3 denotes a saturated hydrocarbon radical of from 8 to 20 carbon atoms and R.sup.4 denotes hydrogen or alkyl of from 8 to 20 carbon atoms.