INORGANIC OPTICAL BRIGHTENER

The invention relates to novel inorganic brighteners, a process for their preparation and their use for brightening substrates. More specifically, the novel inorganic brighteners are phosphors characterized in that they have (i) an absorption maximum in the range of from 350 to 375 nm; (ii) a steep...

Full description

Saved in:
Bibliographic Details
Main Authors SEIDER, BERNHARD, REICHERT, HANS, FABIAN, CHRISTIAN
Format Patent
LanguageEnglish
French
German
Published 31.12.2008
Subjects
ADHESIVES
ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES
CANDLES
CHEMISTRY
COMPOSITIONS BASED THEREON
DETERGENT COMPOSITIONS
DETERGENTS
DYES
FATTY ACIDS THEREFROM
IMPREGNATING OR COATING OF PAPER
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PAPER NOT OTHERWISE PROVIDED FOR
PAPER-MAKING
POLISHES
PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D
PRODUCTION OF CELLULOSE
PULP COMPOSITIONS
RECOVERY OF GLYCEROL
RESIN SOAPS
SOAP OR SOAP-MAKING
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
USE OF SINGLE SUBSTANCES AS DETERGENTS
Online AccessGet full text

Cover

More Information
Summary:The invention relates to novel inorganic brighteners, a process for their preparation and their use for brightening substrates. More specifically, the novel inorganic brighteners are phosphors characterized in that they have (i) an absorption maximum in the range of from 350 to 375 nm; (ii) a steep decrease of the absorption band near 400 nm; (iii) a quantum yield of the phosphorescence of at least 0.8; and (iv) a phosphorescence maximum in the range between 415 and 445 nm.
Bibliography:Application Number: EP20070727907