Carboxylic acid esters of pentaerythritol

US4212816A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl-Heinz Hentschel · Krefeld, DE
• Rolf Dhein · Krefeld, DE
• Hans Rudolph · Krefeld, DE
• Karl Nutzel
• Klaus Morche · Mannheim, DE
• Wolfgang Kruger

Key dates

• Filing date: Dec 20, 1978
• Grant date: Jul 15, 1980
• Expiry date: Dec 20, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M169/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An ester base stock which comprises pentaerythritol, cyclohexyl carboxylic acid, isostearic acid and at least one other C.sub.6 -C.sub.16 saturated aliphatic monocarboxylic acid, having low volatility, a high flashpoint, and increased basic viscosity as well as a very high viscosity index.