abstract |
1,254,257. Preventing polymerization. PENNWALT CORP. 13 May, 1970 [21 May, 1969], No. 23206/70. Heading C5E. [Also in Division C3] The free radical polymerization of ethylenically unsaturated compounds is inhibited by the use of an N-alkyl-N-aryl hydroxylamine. An example relates to the suppression of " popcorn" polymerization of a mixture of styrene and butadiene. |