Fluorescent pigments for use in thermocopying - contg solely cuprous cpds with nitrogen base as fluorescent component

Fluorescent pigments for use in thermocopying contain solely Cu- (I) cpds. with a nitrogen base as fluorescent component these cpds. being prepd. by reducing the Cu-(II) salts, esp. with ascorbic acid, in the presence of the nitrogen base, or by directly reacting a Cu-(I) cpd., esp. Cu-(I) iodide, w...

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Bibliographic Details
Main Author HARDT, HORST-DIETRICH, DR
Format Patent
LanguageEnglish
German
Published 15.05.1975
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:Fluorescent pigments for use in thermocopying contain solely Cu- (I) cpds. with a nitrogen base as fluorescent component these cpds. being prepd. by reducing the Cu-(II) salts, esp. with ascorbic acid, in the presence of the nitrogen base, or by directly reacting a Cu-(I) cpd., esp. Cu-(I) iodide, with the nitrogen base. The pigments can be easily prepd., they have very high fluorescence in U.V. light, are resistant to impurities.
Bibliography:Application Number: DE19732356020