| 摘要 |
1,263,089. Coloured polylactams. CESKOSLOVENSKA AKADEMIE VED. 3 March, 1969 [4 March, 1968], No. 11094/69. Heading C3R. In the alkaline polymerization of lactams having more than 6 ring atoms the activators used are azo or bisazo compounds of the general formula or where R<SP>1</SP> is R is H or C 1-18 alkyl or dialkyl amino, R<SP>2</SP> is C 1-18 alkyl, aryl or aralkyl, R<SP>3</SP> is R<SP>1</SP> or R<SP>2</SP>, and X is The activators are red to yellow dyestuffs and inert dyes may be included to modify the final colour. The activated polymerizate is stated to be stable and storable at room temperature but to polymerize rapidly at 170‹ to 210‹ C. In examples capro-, caprylo-, enantho- and a mixture of capro- and gamma-methyl caprolactams are polymerized with various activators.
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