Ciba Specialty Chemicals Corporation

Henry C Grace

James Peter Galbo

Robert E Detlefsen

Peter Solera

Michael P DiFazio

Douglas Wayne Horsey

Rangarajan Srinivasan

Christopher Kuell

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.

Process for the synthesis of N-(hydroxyalkoxy) substituted hindered

A mixture of the compounds identified in the title, their pure isomers and alkane-bridged derivatives are particularly effective in stabilizing polymer compositions, particularly polyolefin compositions.

N,N',N''-tris{2,4-bis�Hydrocarbyloxy-2,2,6,6-tetra-

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Satsuma, AL, United States of America

Henry C Grace