<p>A cigarette comprises a blend of tobacco materials and a filter element provided from a non-woven thermoplastic material. The non-woven material comprises polyester or polypropylene fibers. The non-woven material is in intimate contact with an acidic material (e.g. phosphoric acid) or a basic material (e.g., sodium hydroxide).</p>
申请公布号
EP0434339(A2)
申请公布日期
1991.06.26
申请号
EP19900313767
申请日期
1990.12.17
申请人
R.J. REYNOLDS TOBACCO COMPANY
发明人
SAINTSING, BARRY LYNN;WONG, MILLY MEE LEE;PERFETTI, THOMAS ALBERT;WHITE, JACKIE LEE;REDDING, JERRY WAYNE;SHU, CHI-KUEN