Invention Grant
- Patent Title: Porous carbon materials and smoking articles and smoke filters therefor incorporating such materials
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Application No.: US11887301Application Date: 2006-03-27
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Publication No.: US09907336B2Publication Date: 2018-03-06
- Inventor: Maria Cashmore , Peter Rex White , Oleksandr Kozynchenko , Andrew Blackburn , Stephen Robert Tennison
- Applicant: Maria Cashmore , Peter Rex White , Oleksandr Kozynchenko , Andrew Blackburn , Stephen Robert Tennison
- Applicant Address: GB London
- Assignee: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
- Current Assignee: BRITISH AMERICAN TOBACCO (INVESTMENTS) LIMITED
- Current Assignee Address: GB London
- Agency: Cantor Colburn LLP
- Priority: GB0506278.1 20050329
- International Application: PCT/GB2006/001102 WO 20060327
- International Announcement: WO2006/103404 WO 20061005
- Main IPC: A24B15/28
- IPC: A24B15/28 ; A24D3/16 ; B01J20/20 ; B01J20/28 ; C04B38/00 ; C04B38/06 ; C01B32/30
Abstract:
A porous carbon material suitable for incorporation in smoke filters for cigarettes has a BET surface area of at least 800 m2/g and a pore structure that includes mesopores and micropores. The pore volume (as measured by nitrogen adsorption) is at least 0.9 cm3/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.
Public/Granted literature
- US20090038632A1 Porous Carbon Materials and Smoking Articles and Smoke Filters Therefor Incorporating Such Materials Public/Granted day:2009-02-12
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