| 摘要 |
1,267,782. Coloured macromolecular materials. FARBENFABRIKEN BAYER A.G. 5 Feb., 1970 [15 Feb., 1969; 12 Dec., 1969], No. 5607/70. Headings C3B, C3F, C3P, C3Q and C3R. [Also in Division C4] Macromolecular materials are coloured with dyestuffs of the formula wherein R is a substituent other than tetrachlorobenzoylamino, p is 0-6, m is 5 and n is 1 or 2. The colouring of a number of compositions containing, inter alia, addition and condensation polymers, cellulose derivatives and rubber is described in an example. |
