Patent Number: 6,166,212

Title: Process for the synthesis of N-(hydroxyalkoxy) substituted hindered amine stabilizers

Abstract: N-(Hydroxyalkoxy) hindered amine stabilizers are prepared by reacting the corresponding N-oxyl compound with a peroxide or organic hydroperoxide and a catalytic amount of a metal salt or metal-ligand complex in an alcohol solvent. These N-(hydroxyalkoxy) hindered amines are particularly useful as stabilizers for polyolefins, thermoplastic polyolefins and automotive coating compositions.

Inventors: Galbo; James P. (Wingdale, NY), Detlefsen; Robert E. (Putnam Valley, NY), DiFazio; Michael P. (Mobile, AL), Grace; Henry C. (Satsuma, AL), Kuell; Christopher (Danbury, CT)

Assignee: Ciba Specialty Chemicals Corporation

International Classification: C07D 211/98 (20060101); C07D 211/00 (20060101); C07D 211/94 (20060101); C07D 211/40 ()

Expiration Date: 12/26/2017