Bis-[4-(m,m'-di-tert.-butyl-p-hydroxyphenyl)-butyl-(2)]dicarboxylic acid esters

US4021408A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Horn · Heidelberg, DE
• Gernot Teege · Ludwigshafen, DE
• Werner Fliege
• Frank Weiss · Warminster, US
• Bernd Meissner · Heidelberg, DE

Key dates

• Filing date: Apr 3, 1975
• Grant date: May 3, 1977
• Expiry date: Apr 3, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/134
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

New bis-[4-(m,m'-di-tert.-butyl-p-hydroxyphenyl)-butyl-(2)] dicarboxylic acid esters which are starting materials for the manufacture of dyes, pesticides and additives for plastics, especially stabilizers for polyolefins and polyamides, and are themselves stabilizers, aging retardants or antioxidants for organic products.