| 摘要 |
PROBLEM TO BE SOLVED: To obtain a 2,2,6,6-tetramethyl-4-hydroxypiperidine-N-oxyl composition having suppressed decomposition and excellent heat stability in preservation or in a high-temperature use. SOLUTION: This 2,2,6,6-tetramethyl-4-hydroxypiperidine-N-oxyl composition contains 1.0-10 pts.wt. of 2,2,6,6-tetramethyl-4-hydroxypiperidine based on 100 pts.wt. of 2,2,6,6-tetramethyl-4-hydroxypiperidine-N-oxyl.
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