| 摘要 |
1294088 Detergents containing optical brighteners IMPERIAL CHEMICAL INDUSTRIES Ltd 11 Nov 1969 [10 Dec 1968] 58662/68 Heading C5D [Also in Divisions C2 and Dl] Compounds of formula wherein A is a cyano group or a group of formula -COOR or -COSR in which R is a hydrogen atom or an alkyl, alkenyl, cycloalkyl, aryl, aralkyl or heterocyclic group or a substituted derivative thereof, and X and Y are each a hydrogen or halogen atom or an alkyl group or a group of Formula A except that both X and Y must not be groups of formula A, are incorporated in soaps and detergents as optical brighteners. |
