2,2,6,6-TETRAALKYL-4-PIPERIDYL ALCOHOL ESTERS OF TETRADECYLENE POLYCARBOXYLIC ACIDS AS LIGHT STABILIZERS FOR SYNTHETIC POLYMERS AND STABILIZED COMPOSITIONS

摘要

2,2,6,6-Tetraalkyl-4-piperidyl alcohol esters of tetradecylene polycarboxylic acids are provided, useful as light stabilizers for organic polymeric materials, and having the general formula: in which R is selected from the group consisting of +TR wherein: R5 and R6 are each hydrogen or lower alkyl or hydroxyalkyl having from one to about six carbon atoms; R7 is lower alkyl having from one to about six carbon atoms; R1, R2, R3 and R4 are selected from the group consisting of hydrogen and methyl; X1 and X3 are selected from the group consisting of hydrogen and COOR; X2 and X4 are selected from the group consisting of COOR and 30 wherein R8, R9 and R10 are selected from the group consisting of hydrogen, hydroxy, alkyl, and alkoxy having from one to about eighteen carbon atoms.