| 摘要 |
<p>Compounds of the formula: RX--(CaH2a)X--R b WHEREIN X is oxygen or sulfur, A IS AN INTEGER FROM 2 TO 6, B IS AN INTEGER FROM 3 TO 40, AND R is WHEREIN R1 is an alkyl group of 1 to 8 carbon atoms, R2 is hydrogen or an alkyl group of 1 to 8 carbon atoms, and X IS AN INTEGER FROM 0 TO 6 ARE USEFUL AS ANTIOXIDANTS FOR ORGANIC MATERIALS NORMALLY SUBJECT TO OXIDATIVE DETERIORATION, SUCH AS POLYACETALS, POLYPROPYLENE, AND NYLON, IN AMOUNTS OF FROM ABOUT 0.005 TO ABOUT 5% BY WEIGHT OF THE COMPOSITION.</p> |
