| 摘要 |
A description is given of cellulose ether blends comprising a) cellulose ether; b) from 0.1 to 10% by weight of an additive selected from starch, starch ether, guar, guar ether and xanthan, based on the dry cellulose ether, c) optionally from 0.05 to 1% by weight of polyacrylamide, based on the dry cellulose ether, and d) optionally further additives, characterized in that additive b) has been metered in as an aqueous solution or as a powder and polyacrylamide c) has been metered in as an aqueous solution to a water- moist cellulose ether having a moisture content in the range from 25% to 75% by weight, based on the weight of the moist cellulose ether, with mixing and optionally further addition of water. Likewise described is a process for producing cellulose ether blends of increased bulk density and also their use as an additive in construction material systems such as tile adhesives or cement compositions and plaster compositions.
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