| abstract |
1,247,934. Treating textiles. CIBA-GEIGY A.G. 30 Sept., 1968 [3 Oct., 1967], No. 46376/ 68. Heading D1P. [Also in Divisions C2, C3 and C5] Organic materials may be optically brightened by compounds of the formula where X is a diphenyl residue linked in position 4 and 4' with the =CH- groups, R 1 and R 2 are benzene, diphenyl or naphthalene residues. at least one of R 1 , R 2 and X containing a possibly functionally modified sulphonic acid or carboxylic acid group, or a sulphone, nitrite, hydroxyl, mercapto or methyl group which compounds do not contain chromophoric. The organic material may be a fabric, fibre or paper. Examples describe the treatment of fabrics or fibres of cotton, wool, polyamide, polyacrylonitrile, polyester, polyvinylchloride, cellulose acetate and of paper pulp.n[GB1247934A] |