.alpha.tocopherol-stabilized styrene/butadiene block copolymers

US5877242A · kind A · utility

Assignee

• BASF SE

Inventors

• Norbert Niessner · Friedelsheim, DE
• Wolfgang Loth · Bad Dürkheim, DE
• Konrad Knoll · Mannheim, DE
• Norbert Güntherberg · Speyer, DE
• Paul Naegele · Schifferstadt, DE
• Hubert Trauth · Dudenhofen, DE
• Jurgen Pohrt · Mannheim, DE

Key dates

• Filing date: Aug 14, 1997
• Grant date: Mar 2, 1999
• Expiry date: Aug 14, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/524
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A molding material comprises styrene/butadiene block copolymers obtainable by anionic polymerization and from 0.01 to 1% by weight, based on the polymer, of .alpha.-tocopherol.