发明名称 Cigarette filter comprising a carbonaceous fiber
摘要 The invention provides a cigarette filter including at least one filter segment having one or more composite fiber structures imbedded therein, the composite fiber structure including a carrier fiber and an adsorbent fiber, the adsorbent fiber including an adsorbent material. The filter can include one or more segments of fibrous tow material, with the one or more composite fiber structures imbedded within the fibrous tow, the composite fiber structure including a carrier fiber and a carbonaceous fiber.
申请公布号 US8375958(B2) 申请公布日期 2013.02.19
申请号 US20080124874 申请日期 2008.05.21
申请人 R.J. REYNOLDS TOBACCO COMPANY;HUTCHENS RONALD KEITH 发明人 HUTCHENS RONALD KEITH
分类号 A24D1/04 主分类号 A24D1/04
代理机构 代理人
主权项
地址