| 摘要 |
An amide particularly suitable as a light stabilizer and also for copolymerizing with other monomers, wherein said amide has the following structure: <IMAGE> where R1 is an aryl radical having the structure: <IMAGE> WHERE A AND A' ARE SELECTED FROM HYDROGEN, HYDROXYL AND MEDIUM ALKYL HYDROCARBON RADICALS; B AND B' ARE SELECTED FROM HYDROGEN AND MEDIUM TO LOWER ALKYL HYDROCARBON RADICALS, AND C IS SELECTED FROM MEDIUM TO LOWER ALKYL HYDROCARBON RADICALS, ARYL KETONE RADICALS, 2'-HYDROXY ARYL KETONE RADICALS AND 4'-OCTYL ARYL KETONE RADICALS; R4 is selected from the aryl radicals of R1 and from aliphatic hydrocarbon radicals having from 1 to 8 carbon atoms; R2 is selected from hydrogen, methyl, ethyl, phenyl and -CH2X radicals, where X is selected from chlorine, bromine or fluorine radicals; R3 is selected from medium and lower alkyl, cycloalkyl and aryl radicals; and where R5 is selected from hydrogen, methyl and chlorine radicals.
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