N-substituted hindered amine stabilizers

Details N-substituted hindered amine stabilizers N-substituted hindered amine stabilizers

C - Chemistry, Metallurgy

07

D

400/7074, 260/27

C07D 211/94 (2006.01) C07D 401/04 (2006.01) C07D 401/14 (2006.01) C07D 491/10 (2006.01) C07D 491/22 (2006.01) C08K 5/34 (2006.01) C08K 5/3435 (2006.01) C08K 5/3492 (2006.01) C09D 7/12 (2006.01)

Patent

CA 1339744

Hindered amines based on various 2,2,6,6-tetraalkylated nitrogen-containing heterocyclic moieties wherein the hindered nitrogen atom on the ring is substituted with OR1 substituents and the 4-position of the ring is substituted with a variety of groups, are effective as light stabilizers in diverse substrate systems. Some of them are new compounds. These hindered amines contain the group Image wherein R is hydrogen or methyl and R1 is C1-C18 alkyl, C2-C18 alkenyl, C2-C18 alkinyl, C5-C12 cycloalkyl, C6-C10 bicycloalkyl, C5-C8 cycloalkenyl, C6-C10 aryl, C7-C9 aralkyl or C7-C9 aralkyl substituted by C1-C4 alkyl or phenyl.

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