CO-AXLAL CTGARETTES
Basic combustion r=m-:h. canduc:td at Imperiz. College, University ofLondon in the early 1960S
(1) sus-rSested tha-, mba= in the ;eriphery cigarette contributes more to maim,-re= smoke
generation :han cbzc:3 .n the core.
Research publishe-A ?hLI'p Mcrns Li 197-7 (2) confirmed this, and also suggested that tobacc3 in
the core of -.he ci2are::e cantributec: more to s:dts-.re= smoke.
Ova- the last 25 years. severai s-,.:dies in RAD, Southampton have art6-npted to find product
oppormatities from :base Indications. Work. wasunderuk.-i in the late 1960s and in the 1930s (3)
in which ciizar=es -Anth cc-ax:'?-', cbacm rods were constracted with various materials, including
the nor-Ecibacco subsea Cvir:@, oiac:d in 't core and peripherl. In some studies the inner core
was wrapped xith :,.-zaretza paper, in other studies it was not. Urforrunarely. in aU the work
unce-rarctri m Sou--6amoton no cr:duc-. advar.:aaes for eaher mainstrearn or sidestrearii smoke
war-. fcurd Furmer -jvcr-.< ir. Soudhanicton has dierefore not been pursued.
(0-1
BATC7 beiieve thr. -z-axjal cigarettes have produce dw-rciopment advantages and have beta
ac,.ive:v invoived Li mis area for some years. Th.ev have Ei-ed seven pate-it appd=ions since 1997,
With the --.2areres c3i:Lzinine both :o-Lxial icb-acza rods and co-adJa fikers. The patents desc-.,-oe
a larize combiriat.;cn. cf robaccos, cl-earerre papers tar the inner and outer cores, ffitruion
emc;enzies and Ventilaucri !eve!s. Bv cz-brnisine :hese desism. Parameters irt many ways, the
MZ' monoxide), enhanced
patents ziairn v2.ict;sv- '.ow , MSUeam szmoka deliveries (tar and camon
taste tar a2ar:=es. reducec s;destrearn In: ;-educcd ismirion orocensiry.
-kt the Rese:irch -c"'
P@:;; Grout: -Met:-'r2 in C-t=a.-iv :n October MO (attended by CAC heads of
R&D) :-Z Was 11IL'IM!, :nat pe-opie wculd be on 3.kTCFs progess in this area on aneed-
to-know basis oniv \o information is avaiiabie in Southarnmcn, other than their parents.
References
I Sir k E2tr:cr- 'K. Gu2ar. and F I We@rzerz
Comb=non zntzF.,ame, 196-1. 7. 63-73.
KW. lenkris .1.. R.T. Bass. R.H. 'Ne--io-nan and M.K. Chx@is.
3e-,r-. Tahck.@rrzh, 19777, 9. !'-6-130
3.k-, R&D SzcuL!i--,nDton ;..-:orL Nos..
E. !!-. I Ian. 1967
RD 6.6R. i 7 Oct. 196S
.3 Cc. 1-3 NOV 1970
T N I 3 -M IV 19s'-
BA7 Preference Rt=cr@. !6 Dec 198'-
O;K I: Mav 19S!
RD ::-4 -'6 5c:t 1986
RD \match !QIS-i
Q4
Ln
R.R. Baker
BATCo document for Province of British Columbia 23 April 1999