Aryl phosphonites, a process for their production and their use for stabilizing plastics

US5298541A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Manfred Bohshar · Kelkheim, DE
• Hans-Jerg Kleiner · Kronberg, DE
• Gerhard Pfahler · Augsburg, DE

Key dates

• Filing date: Feb 20, 1992
• Grant date: Mar 29, 1994
• Expiry date: Feb 20, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5393
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of aryl phosphonites of the formula V ##STR1## wherein the radicals and n are defined in the disclosure. The invention further relates to a plastic molding composition, in particular a polyolefin molding composition containing aryl phosphonites of the formula V.