发明授权
US5059689A Tetramethylpiperidino-s-triazines 失效
四甲基吡啶二酮-S-TRIAZINES

Tetramethylpiperidino-s-triazines
摘要:
Compounds which contain at least one group of the formula I ##STR1## in which X is a group which completes the ring to form a piperidine ring, are effective stabilizers for organic materials against damage by light, oxygen and heat.
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