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    • 1. 发明授权
    • Cigarette filters
    • 香烟过滤器
    • US08201564B2
    • 2012-06-19
    • US11607949
    • 2006-12-04
    • Mark A. McHughGeorgios KarlesDiane GeeJoseph L. BanyaszZhihao ShenMunmaya K. Mishra
    • Mark A. McHughGeorgios KarlesDiane GeeJoseph L. BanyaszZhihao ShenMunmaya K. Mishra
    • A24D3/06
    • A24D3/0212D06M13/00D06M23/105D06M2101/08
    • Fibrous material suitable for incorporation into filter elements of smoking articles such as cigarettes are impregnated with additives and agents such as flavorants, flavorant-enhancers and/or free radical scavengers. The fibrous material is contacted with the additive dispersed in a high pressure gas or supercritical fluid (SCF) held at elevated pressures. The high pressure gas or SCF swells the fibrous matrix and enables the additive to be incorporated within the matrix. When pressure is reduced, the gas or SCF vaporizes and leaves the additive embedded in the fiber interstices. As a result, the additive is slowly released over a finite period of time. When incorporated into a cigarette filter, the additive is released at a desired rate from the interior of the fibrous filter into the cigarette smoke.
    • 适于掺入烟草制品如香烟的过滤元件的纤维材料用添加剂和试剂(例如调味剂,调味剂增强剂和/或自由基清除剂)浸渍。 纤维材料与分散在保持在高压下的高压气体或超临界流体(SCF)中的添加剂接触。 高压气体或SCF使纤维基体膨胀,并使添加剂能够并入基体内。 当压力降低时,气体或SCF蒸发并留下嵌入在纤维间隙中的添加剂。 结果,添加剂在有限的时间内缓慢释放。 当并入香烟过滤嘴中时,添加剂以纤维过滤器内部以香烟烟雾的期望速率释放。
    • 9. 发明申请
    • Composite materials and their use in smoking articles
    • 复合材料及其在吸烟用品中的应用
    • US20050133051A1
    • 2005-06-23
    • US10741482
    • 2003-12-22
    • Zhaohua LuanDiane GeeJose NepomucenoShuzhong ZhuangJay Fournier
    • Zhaohua LuanDiane GeeJose NepomucenoShuzhong ZhuangJay Fournier
    • A24D1/04A24D3/00A24D3/16A24F1/00
    • A24D3/163A24D3/166
    • Smoking articles, filters, and methods for selectively removing selected components from tobacco smoke are disclosed. The smoking articles and filters include composites composed of a porous alumina and/or aluminosilicate matrix containing particles of activated carbon and zeolite molecular sieve adsorbents distributed throughout the matrix which can selectively remove selected components of tobacco smoke. The composites may be made by admixing the adsorbent mixture and a binder such as aluminum hydroxide or montmorillonite clay, adding an aqueous mineral acid to gel the mixture and drying and firing the gel paste. The proportions and adsorption capacities of the components can be selected to tailor the adsorption characteristics of the composites to selectively remove targeted constituents such as acrolein and 1,3-butadiene in tobacco smoke. Methods for making filters and smoking articles using the composites, as well as methods for smoking products comprising the composites, are also provided.
    • 公开了用于从烟草烟雾中选择性地去除所选组分的吸烟制品,过滤器和方法。 吸烟制品和过滤器包括由多孔氧化铝和/或包含活性炭颗粒的铝硅酸盐基质和分布在整个基质中的沸石分子筛吸附剂组成的复合材料,其可以选择性地除去选定的烟草烟雾组分。 复合材料可以通过混合吸附剂混合物和粘合剂如氢氧化铝或蒙脱石粘土来制备,加入无机酸水溶液使混合物凝胶化并干燥并焙烧凝胶糊剂。 可以选择组分的比例和吸附能力来定制复合材料的吸附特性,以便在烟草烟雾中选择性地除去目标成分如丙烯醛和1,3-丁二烯。 还提供了使用复合材料制造过滤器和吸烟制品的方法以及包含复合材料的吸烟产品的方法。