| abstract |
(57) Abstract: A monomer of formula I and an oligomer of formula II. The manufacturing method. Oligomer mixture. Compositions of monomers, oligomers or mixtures thereof with organic materials. [Chemical 1] (Examples of groups; R 1 , R 2 = H, tert-butyl, R 3 = H, R (3 = H, methyl, n = 2 to 25, A = cyclohexylidene, isopropyl) [Effect] This compound protects organic materials from oxidation, heat, and light-induced decay, and has particularly high hydrolysis stability and organic materials. Prevent fading. |