Flame retardant polymer compositions containing hydroxylamine esters

US7230042B2 · kind B2 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• Michael Roth · Herbstein, DE
• Dirk Simon · Mutterstadt, DE
• Grant Leslie · Haddington, GB
• Peter Nesvadba · Marly, CH
• Roswell E. King, III · Pleasantville, US
• Nikolas Kaprinidis · New York, US

Key dates

• Filing date: Apr 10, 2003
• Grant date: Jun 12, 2007
• Expiry date: Apr 10, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/3435
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The instant invention pertains to a thermoplastic organic polymer containing a conventional flame retardant and a hydroxylamine ester, in particular a tetraalkyl piperidine hydroxylamine ester. Further aspects of the invention are the use of hydroxylamine esters as flame retardants and a method for improving flame retardancy of a thermoplastic organic polymer.