Cigarette filters
    3.
    发明申请
    Cigarette filters 有权
    香烟过滤器

    公开(公告)号:US20080029112A1

    公开(公告)日:2008-02-07

    申请号:US11607949

    申请日:2006-12-04

    IPC分类号: A24D3/06

    摘要: 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.

    摘要翻译: 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。

    Cigarette filters
    5.
    发明授权
    Cigarette filters 有权
    香烟过滤器

    公开(公告)号:US08201564B2

    公开(公告)日:2012-06-19

    申请号:US11607949

    申请日:2006-12-04

    IPC分类号: A24D3/06

    摘要: 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.

    摘要翻译: 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。

    Method of making modified activated carbon
    9.
    发明申请
    Method of making modified activated carbon 有权
    改性活性炭的制备方法

    公开(公告)号:US20070259124A1

    公开(公告)日:2007-11-08

    申请号:US11727712

    申请日:2007-03-28

    IPC分类号: A24B15/00

    摘要: A process for making modified activated carbon from an activated carbon substrate. The activated carbon substrate is pre-treated to make an exposed surface of the activated carbon substrate substantially hydrophilic, coated with a carbon precursor to form a coated activated carbon, and then the coated activated carbon substrate is heated to carbonize the carbon precursor to from the modified activated carbon. The modified activated carbon comprises a uniform porous carbon membrane formed on an exposed surface of the activated carbon substrate. The carbon membrane can mediate the absorption and/or adsorption kinetics of the activated carbon substrate. The modified activated carbon, which can be incorporated into one or more components of a cigarette, can selectively remove gaseous constituents from mainstream smoke during smoking.

    摘要翻译: 一种从活性炭底物制备改性活性炭的方法。 将活性炭基材预处理以使活性炭基材的暴露表面基本上亲水,涂覆有碳前体以形成包被的活性炭,然后将涂覆的活性炭底物加热以碳化碳前体从 改性活性炭。 改性活性炭包括在活性炭基材的暴露表面上形成的均匀的多孔碳膜。 碳膜可以介导活性炭底物的吸收和/或吸附动力学。 可以并入香烟的一种或多种组分的改性活性炭可以在吸烟期间选择性地除去主流烟雾中的气体组分。