| 摘要 |
The present invention relates to novel whitening pigments comprising the reaction product of (a) a melamine-formaldehyde and/or a melamine-urea polycondensation product and (b) a water-soluble fluorescent whitening agent of the formula (1) wherein R<SUB>1 </SUB>represents -OH, -OC<SUB>1</SUB>-C<SUB>4</SUB>alkyl, -Oaryl, -NH<SUB>2</SUB>, -NHC<SUB>1</SUB>-C<SUB>4</SUB>alkyl, -N(C<SUB>1</SUB>-C<SUB>4</SUB>alkyl)<SUB>2</SUB>, -NHC<SUB>2</SUB>-C<SUB>4</SUB>hydroxyalkyl, -N(C<SUB>2</SUB>-C<SUB>4</SUB>hydroxyalkyl)2, -N(C<SUB>1</SUB>-C4alkyl)(C<SUB>2</SUB>-C<SUB>4</SUB>hydroxyalkyl), -NHC<SUB>1</SUB>-C<SUB>4</SUB>alkoxy-C<SUB>1</SUB>-C<SUB>4</SUB>alkyl, -N(C<SUB>1</SUB>-C<SUB>4</SUB>alkoxy-C<SUB>1</SUB>-C<SUB>4</SUB>alkyl)<SUB>2</SUB>, morpholino, piperidino, pyrrolidino or the residue of an amino acid from which a hydrogen atom has been abstracted from the amino group, R<SUB>2 </SUB>represents -CONH<SUB>2</SUB>, -CONHC<SUB>1</SUB>-C<SUB>4</SUB>alkyl, -COOM, -SO<SUB>2</SUB>NH<SUB>2 </SUB>or -SO<SUB>2</SUB>NHC<SUB>1</SUB>-C<SUB>4</SUB>alkyl and M is hydrogen, sodium, potassium, calcium, magnesium, ammonium, mono-di-, tri- or tetra-substituted C<SUB>1</SUB>-C<SUB>4</SUB>alkylammonium or C<SUB>2</SUB>-C<SUB>4</SUB>hydroxyalkylammonium or mixtures thereof, a process for preparation of the whitening pigments and their use for the fluorescent whitening of paper, especially in coating, for the fluorescent whitening and improvement of sun protection factors of textile materials and for improving the aspect of solid detergent compositions. Further disclosed are certain novel fluorescent whitening agents suitable for preparation of the whitening pigments and a process for their preparation. |
| 申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
CUESTA, FABIENNE;NAEF, ROLAND;DEISENROTH, TED;ROHRINGER, PETER;GRIENENBERGER, MARC;SCHROEDER, SERGE |
