Lactone-modified ester oils

US4362635A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Rolf Dhein · Krefeld, DE
• Karl-Heinz Hentschel · Krefeld, DE
• Karl Nutzel
• Klaus Morche · Mannheim, DE
• Wolfgang Schule · Ketsch, DE

Key dates

• Filing date: Oct 29, 1980
• Grant date: Dec 7, 1982
• Expiry date: Oct 29, 2000

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10N2040/13
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Esterification products of monoalcohols and dicarboxylic acids, or of polyhydric alcohols and monocarboxylic acids respectively, containing 5 to 45% by weight of units of hydroxycarboxylic acids and having a ratio of carbon to oxygen atoms greater than 4.1 obtained from (a) aliphatic C.sub.1 -C.sub.14 alcohols, (b) aliphatic C.sub.4 -C.sub.18 carboxylic acids and optionally cycloaliphatic C.sub.6 -C.sub.12 and aromatic C.sub.7 -C.sub.12 carboxylic acids, and (c) lactones of aliphatic C.sub.5 -C.sub.12 hydroxycarboxylic acids. They are suitable for the preparation of lubricants and lubricant compositions.