<p>A biodegradable paper substrate and/or biodegradable fiber (including fiber tow) may be coated with cellulose acetate and/or plasticized cellulose acetate for use in a filter material configured for application in a filter of a smoking article. Flocking and/or fibrillation methods may be used to deposit and/or generate a plurality of fibers that may protrude beyond a surface of the biodegradable substrate material. A filter made in accordance with this design may also include non-biodegradable material.</p>
申请公布号
EP2713782(A2)
申请公布日期
2014.04.09
申请号
EP20120721147
申请日期
2012.05.08
申请人
R. J. REYNOLDS TOBACCO COMPANY
发明人
SEBASTIAN, ANDRIES, D.;SEARS, STEPHEN, BENSON;ALDERMAN, STEVEN, L.