Synergistic flame protection agent combination for thermoplastic polymers

US6365071B1 · kind B1 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Elke Jenewein · Gersthofen, DE
• Hans-Jerg Kleiner · Kronberg, DE
• Wolfgang Wanzke · Meitingen, DE
• Winfried Budzinsky · Bad Soden, DE

Key dates

• Filing date: Jan 29, 1999
• Grant date: Apr 2, 2002
• Expiry date: Jan 29, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L67/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a synergistic flame retardant combination for thermoplastic polymers, preferably engineering plastics, especially for polyesters, which as component A comprises a phosphinic salt of the formula (I) defined in the description and/or a diphosphinic salt of the formula (II) and/or polymers thereof, and as component B comprises a nitrogen compound of the formula (III) to (VIII) defined in the description, or a mixture of the compounds represented by the formulae.