| 摘要 |
<p>High viscosity cellulose ether products are produced by grinding in a high speed air swept impact mill, a substantially dry, high molecular weight cellulose ether having a viscosity greater than 100 Pa.s (100,000 cps) at 20 DEG C. These products have several times the intrinsic viscosity of a product of substantially equivalent particle size obtained by ball mill or hammer mill grinding.</p> |
