The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 06, 2018
Filed:
Mar. 27, 2006
Porous carbon materials and smoking articles and smoke filters therefor incorporating such materials
Maria Cashmore, Southampton, GB;
Peter Rex White, Southampton, GB;
Oleksandr Kozynchenko, Plymouth, GB;
Andrew Blackburn, Plymouth, GB;
Stephen Robert Tennison, Plymouth, GB;
Maria Cashmore, Southampton, GB;
Peter Rex White, Southampton, GB;
Oleksandr Kozynchenko, Plymouth, GB;
Andrew Blackburn, Plymouth, GB;
Stephen Robert Tennison, Plymouth, GB;
BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED, London, GB;
Abstract
A porous carbon material suitable for incorporation in smoke filters for cigarettes has a BET surface area of at least 800 m/g and a pore structure that includes mesopores and micropores. The pore volume (as measured by nitrogen adsorption) is at least 0.9 cm/g and from 15 to 65% of the pore volume is in mesopores. The pore structure of the material provides a bulk density generally less than 0.5 g/cc. The material may be produced by carbonizing and activating organic resins and may be in the form of beads for ease of handling.