| 摘要 |
<p>A smoking material comprised a binder consisting wholly or in part of a thermo-gelling substituted cellulose having a degree of substitution of at least 1.5 methoxyl groups per anhydroglucose unit, and an inert water-insoluble inorganic diluent such as chalk, which material has a density reduced by the entrainment and dispersion of air therein. The binder may comprise a thermo-gelling methyl cellulose having a degree of substitution of a least 1-5 methoxyl groups per anhydroglucose unit and/or an additionally substituted least 1-5 methoxyl groups per anhydroglucose unit. It may additionally include a thermo-gelling cellulose having a lower degree of substitution or a non-thermo-gelling substituted cellulose. The invention is also concerned with a method of producing the said smoking material.</p> |
