| 摘要 |
1,229,307. Coloured polystyrene. BADISCHE ANILIN- & SODA-FABRIK A.G. 6 Sept., 1968 [8 Sept., 1967], No. 42425/68. Heading C3P. [Also in Division G2] Polystyrene is coloured a yellowish-grey by means of a mixture of titanium dioxide RN56, cadmopur yellow 6GN, cadmopur red GGN and carbon black and processed by injection moulding. Alternatively polystyrene may be coloured a deep red utilizing a mixture of titanium dioxide RN40, cadmopur red BBS, styrene red B and ultramarine blue. |
