Improvements relating to optical brighteners

Details Improvements relating to optical brighteners Improvements relating to optical brighteners

D - Textiles, Paper

21

H

D21H 21/30 (2006.01) C07D 251/68 (2006.01) C09K 11/06 (2006.01)

Patent

CA 2456908

The present invention relates to the use of compounds of formula (I), wherein all substituents are as defined in the claims as optical brighteners as well as to new mixtures of optical brighteners.

L'invention concerne l'utilisation de composés de formule (I), dans laquelle tous les substituants sont définis dans les revendications, en tant qu'azurants optiques, ainsi que des mélanges d'azurants optiques.

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