Hydroxy-substituted N-alkoxy hindered amines and compositions stabilized therewith

US6376584B1 · kind B1 · utility

Assignee

• Ciba Specialty Chemicals Corporation · US

Inventors

• James P. Galbo · Wingdale, US
• Gerald A. Capocci · Greenwich, US
• Nancy Cliff · Ringwood, US
• Robert Detlefsen · Putnam Valley, US
• Michael P. DiFazio · Mobile, US
• Ramanathan Ravichandran · Nanuet, US
• Peter Solera · Suffern, US
• Christophe Bulliard · Basel, CH

Key dates

• Filing date: Feb 27, 2001
• Grant date: Apr 23, 2002
• Expiry date: Feb 27, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/5477
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Hindered amines substituted on the N-atom with an hydroxy-substituted alkoxy moiety are particularly effective in stabilizing organic polymer compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not otherwise attainable.