Divinyl-diphenyl compounds
Abstract
Abstract WHEREIN R'' represents a phenyl, naphthyl or diphenylyl radical which may be substituted by non-chromophoric groups and Y'' represents hydrogen, chlorine, bromine alkyl or a phenyl, naphthyl or diphenylyl radical which may be substituted by nonchromophoric groups and X and X'' independently of one another represent hydrogen, halogen, alkyl or alkoxy with 1 to 4 carbon atoms or the sulphonic acid groups or its salts, with the number of the sulphonic acid groups or their salts in the molecule having to be 1 to 4. These compounds are particularly useful as optical brighteners. WHEREIN R represents a phenyl, naphthyl or diphenylyl radical which may be substituted by non-chromophoric groups Y represents hydrogen, chlorine, bromine, alkyl or a phenyl, naphthyl or diphenylyl radical which may be substituted by nonchromophoric groups, Q represents a phenyl, naphthyl or diphenylyl radical which may be substituted by non-chromophoric groups or a radical New sulphonated divinyl-diphenyl compounds of the formula
Inventors
- 👤 K Weber
- 👤 H Schlapfer
Bibliographic Details
Claims Analysis
Total Claims: 9References Cited (Backward Citations)
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