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12. 发明授权

US4625737A Foamed, extruded, tobacco-containing smoking article and method of making the same 失效
标题翻译：发泡，挤压，含烟的吸烟物品及其制造方法
公开(公告)号：US4625737A
公开(公告)日：1986-12-02
申请号：US723883
申请日：1985-04-16
申请人： Gus D. Keritsis , Walter A. Nichols , George H. Burnett , Richard A. Thesing , Jose G. Nepomuceno
发明人： Gus D. Keritsis , Walter A. Nichols , George H. Burnett , Richard A. Thesing , Jose G. Nepomuceno
IPC分类号： A24B3/14 , A24B15/14
CPC分类号： A24B3/14 , A24B15/14
摘要： A substantially cylindrical foamed, extruded, tobacco-containing smoking article and a method of making the article. The article has properties substantially equivalent to a conventional cigarette. It contains from about 5 to about 98 wt. % of particulate tobacco, from 0 to about 60 wt. % of particulate filler, from about 2 to about 40 wt. % of a cellulosic binder selected from among hydroxypropyl cellulose, carboxymethyl cellulose, and its sodium, potassium and ammonium salts, cross-linked carboxymethyl cellulose, and its sodium, potassium and ammonium salts, hydroxyethyl cellulose, ethyl hydroxyethyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, ethyl cellulose, and mixtures thereof, and from about 5 to about 20 wt. % of water. The article has a density within the range of from about 0.05 to about 1.5 g/cc. The method of making such articles comprises the step of (a) dry blending the tobacco particles having an OV value of from about 3 to about 20% with from 0 to about 60 wt. % of a filler, and; (b) prehydrating the cellulosic binder material (c) admixing the prehydrated binder and the dry blend to form a wet blend containing from about 15 to about 50 wt. % of water; then (d) extruding the wet blend under extrusion conditions of temperature and pressure such that as the wet blend is extruded the moisture in the blend is converted to steam, thereby foaming the article.
摘要翻译：基本上圆柱形的发泡，挤出，含烟草的吸烟制品和制造该制品的方法。该制品具有与常规香烟基本上相当的性质。它含有约5至约98wt。％的颗粒烟草，0至约60wt。％的颗粒填料，约2至约40wt。％的选自羟丙基纤维素，羧甲基纤维素及其钠，钾和铵盐的纤维素粘合剂，交联的羧甲基纤维素及其钠，钾和铵盐，羟乙基纤维素，乙基羟乙基纤维素，羟丙基甲基纤维素，甲基纤维素，乙基纤维素及其混合物，和约5至约20wt。％的水。该制品的密度在约0.05至约1.5g / cc的范围内。制备这种制品的方法包括以下步骤：（a）将具有约3至约20％的OV值的烟草颗粒与0至约60重量％％的填料，和; （b）预先水化纤维素粘合剂材料（c），将预水合的粘合剂和干混合物混合以形成含有约15至约50wt。％的水; 然后（d）在温度和压力的挤出条件下挤出湿共混物，使得当湿共混物挤出时，共混物中的水分转化为蒸汽，从而使制品起泡。

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