| 摘要 |
1,143,463. Stabilizing nitriles. FARBENFABRIKEN BAYER A.G. 4 March, 1966 [6 March, 1965], No. 9640/66. Heading C2C. Acrylonitrile and substitution derivatives thereof, such as alpha-methyl-, alpha-cyano- and alpha-phenylacrylonitrile, are stabilized against polymerization (e.g. during purification by distillation) by admixture with a substituted aminodiphenylamine of the formula wherein R represents an aryl, aralkyl, cycloalkyl or alkyl radical of up to 8 carbon atoms and R 1 represents hydrogen, methyl or ethyl. |
