| 摘要 |
2,2,6,6-Tetramethylpiperidine derivatives of the formula I <IMAGE> (I) <IMAGE> in which A is a radical of the formula II, III or IV, and in formula II B is bonded to the N atom, <IMAGE> (II), <IMAGE> (III), +TR <IMAGE> (IV) B is C2-C12 alkylene, C4-C10 alkenylene, C6 alkynylene, xylylene or bitolylene, R1 is H or C1-C12 alkyl, R2 is hydrogen, methyl, ethyl, phenyl or phenoxymethyl and n is 0, 1 or 2, for use as stabilizers for synthetic organic polymer.
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