Abstract of the DisclosureThis invention relates to an improvement in the method for thecold-milling of a cellulose derivative, in which the cellulose deriva-tive is cooled by means of liquid nitrogen until it becomes brittle andthe thus cooled cellulose derivative is milled in a mill, the improve-ment comprising cold-milling a cellulose derivative which is solubleor swellable in water and has a water content of between 40 and 150per cent by weight, based on its dry weight, and which is, at 20°C,able to absorb, during swelling, more than 150 per cent by weight ofwater, based on its dry weight.
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