Abstract: A smoking article pack blank having a lid (2) and a base portion (3), the lid and the base portion being interconnected along a hinge line (27) and the base portion comprising first (24) and second (25) main panels. The main panels of the smoking article pack blank each having side panels (32, 33, 38, 39) depending therefrom and at least one of the side panels having a side flap (35) depending therefrom. When erected the smoking article pack blank may be hinged about a longitudinal axis (34) of a side wall thereof. The invention further provides a smoking article pack assembly, which pack assembly comprises the smoking article pack blank and a plurality of inner blanks. The smoking article pack assembly may be hinged into an open position thereof about a longitudinal hinge line in a side wall of the erected pack assembly.
Type:
Grant
Filed:
March 8, 2004
Date of Patent:
March 1, 2011
Assignee:
British American Tobacco (Investments) Limited
Inventors:
Andrew Jonathan Bray, Alan Douglas Tearle, Steven Holford
Abstract: The present invention relates to a smoking article comprising two layers of wrapper material, the outer wrapper having an air permeability of at least 200 C.U. and having a greater permeability than the inner wrapper. Encapsulated flavour is held between the inner and outer wrappers. The encapsulation technique is dependent upon the flavour to be encapsulated and the sidestream to mainstream flavour delivery ratio required. Sidestream smoke may be altered without altering the mainstream smoke, thereby altering room odors.
Type:
Grant
Filed:
December 5, 2003
Date of Patent:
January 11, 2011
Assignee:
British American Tobacco (Investments) Limited
Abstract: A method of making mesoporous carbon beads comprises steps of providing a nucleophilic component such as phenolic compound or phenol condensation prepolymer, dissolving the nucleophilic component in a pore former, together with at least one electrophilic cross-linking agent such as formaldehyde, paraformaldehyde, furfural and hexamethylene tetramine, dispersing the resulting solution into a mineral oil to form beads, condensing both the component and the agent in the presence of the pore former to form beads of porous resin, removing the beads from the mineral oil and carbonizing the beads to form mesoporous carbon beads.
Type:
Grant
Filed:
May 7, 2007
Date of Patent:
December 14, 2010
Assignee:
British American Tobacco (Investments) Ltd.
Inventors:
Stephen Robert Tennison, Oleksundr Prokopovych Kozynchenko, Volodymyr Vasyljovych Strelko, Andrew John Blackburn
Abstract: A method is provided for making mesoporous resin. It comprises: (a) providing a nucleophilic component which comprises a phenolic compound or a phenol condensation prepolymer optionally with one or more modifying reagents selected from hydroquinone, resorcinol, urea, aromatic amines and heteroaromatic amines; (b) dissolving the nucleophilic component in a pore former selected from the group consisting of a diol, a diol ether, a cyclic ester, a substituted cyclic ester, a substituted linear amide, a substituted cyclic amide, an amino alcohol and a mixture of any of the above with water, together with at least one electrophilic cross-linking agent selected from the group consisting of formaldehyde, paraformaldehyde, furfural and hexamethylene tetramine; and (c) condensing the nucleophilic component and the electrophilic cross-linking agent in the presence of the pore former to form a porous resin. The resin may be formed in situ by pouring the partially cross-linked resin into hot oil.
Type:
Grant
Filed:
April 10, 2007
Date of Patent:
November 30, 2010
Assignee:
British American Tobacco (Investments) Limited
Inventors:
Stephen Robert Tennison, Oleksundr Prokopovych Kozynchenko, Volodymyr Vasyljovych Strelko, Andrew John Blackburn
Abstract: This invention relates to a smoking article having a controllable static burn rate by virtue of the particle size of a component of the smoking material thereof. The smoking material comprises a non-combustible inorganic filler, a binder, aerosol generating means, the non-combustible filler comprising a proportion of material having a mean particle size in the range of 500 ?m to 20 ?m.
Type:
Grant
Filed:
August 21, 2002
Date of Patent:
May 4, 2010
Assignee:
British American Tobacco (Investments) Limited
Inventors:
David John Dittrich, Joseph Peter Sutton, Steven Coburn