| 摘要 |
<p>Preparations of solids comprising <SL> <LI>a) at least one particulate solid and <LI>b) a water-dispersible graft copolymer built up from at least one hydrophobic, ethylenically unsaturated monomer, optionally one or more ethylenically unsaturated hydrophilic monomers, and at least one natural protective colloid or protective colloid obtained from a natural protective colloid by derivadisation or thermal, enzymatic, oxidative, hydrolytic, or bacteriological degredation having an average molar mass of M<SB>n</SB> > 500g/mol. Suitable colloids are preferably polyhydroxy compounds, e.g. starch and starch derivatives, oxidatively, acidically, thermally, bacteriologically or enzymatically degraded starch, cellulose or cellulose derivatives, gelatin, xanthan, hydroxypropylcellulose, carboxymethylcellulose, alginic acid, casein, or pectin. Particular preference is given for the use of starch degraded oxidatively using hypochlorite. </SL></p> |
