FIELD: chemistry.
SUBSTANCE: water-soluble composition contains a) at least one water-soluble optical bleaching agent, b) a polymer obtained from an ethylenically unsaturated monomer or a monomer mixture, characterised by that at least one monomer is an acrylamide and the water-soluble polymer has average (weight-average) molecular weight between 500 and 49000, optionally c) polyethylene glycol with weight-average molecular weight between 500 and 6000, and d) water. Said composition is used to optically bleach paper.
EFFECT: high degree of bleaching while preserving rheological properties.
7 cl, 7 tbl, 70 ex
| Title | Year | Author | Number |
|---|---|---|---|
| AMPHOTERIC FLUORESCENT WHITENING AGENT | 2003 |
|
RU2356898C2 |
| TRIAZINYLAMINOSTILBENE DISULFONE ACID MIXES | 2003 |
|
RU2330870C2 |
| SIZED PAPER MANUFACTURING PROCESS (OPTIONS) | 2002 |
|
RU2293090C2 |
| PAPER AND CARDBOARD MANUFACTURE METHOD | 2002 |
|
RU2287631C2 |
| AQUEOUS SOLUTIONS OF OPTICAL BLEACHES | 2006 |
|
RU2375511C2 |
| PAPER COATING FORMULATION WITH IMPROVED OPTIC BLEACHER CARRIERS | 2000 |
|
RU2245952C2 |
| APPLICATION OF DISULPHONIC FLUORESCENT BLEACHING AGENTS IN COATINGS | 2010 |
|
RU2550833C2 |
| COATING MATERIAL | 2000 |
|
RU2253711C2 |
| OPTICALLY BRIGHTENED LATEXES | 2019 |
|
RU2799333C2 |
| COATED PAPER | 0 |
|
SU903432A1 |
