Method and apparatus for the plasma processing of filter material

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Abstract

One embodiment of the invention provides a method of manufacturing a filter material such as carbon suitable for use in a smoking article. The method includes modifying the filtration properties of the filter by altering the surface of the filter material. The surface alteration is performed by plasma processing and can be used, for example, to increase the acidic or basic properties of the surface. Another embodiment of the invention provides a filter produced by such a method.

Classe Tecnologica

A - Human Necessities

Patent Office

United States Patent and Trademark Office

Numero Deposito

US2011146697

Anno Deposito

2008

Anno Concessione

2011

Inventori Pugliesi

Tutti gli inventori

  • Michele Mola
  • Riccardo D'agostino
  • Pietro Favia
  • Nicoletta De Vietro
  • Francesco Fracassi

Titolari pugliesi

  • Non ci sono titolari pugliesi

Tutti i titolari

  • BRITISH AMERICAN TOBACCO