Those Present P.D. Case
    Plus Mr. C. Le Huguet
    PDC/MM/46M  4 October 1988
    NOTES OF MEETING HELD BETWEEN
    SAT R&D AND P.D.M. AT
    SOUTHAMPTON ON 14/9/88
    Dr. R. Binns (Introduction)
    Dr. T. Hirji
    Mr. J.A. Luke R&D
    Dr. M. Duke
    Mr. A.G. Stephenson
    Mr. P.D. Case
    Dr. N. Baskevitch P.D.M.
    Dr. J.M. Loureau
    1 Dr. Binns defined the objective of the meeting indicating a low total sidestream
    product was wanted for market evaluation in early 1989 and that there was a very
    high level of commitment for this type of product.
    2. Data on the use of magnesium chloride in cigarette paper was reviewed indicating
    that extended puff number and low total sidestrearn was available, however
    increased mainstream deliveries, paper staining and unacceptable taste
    characteristics precluded further development work.
    P.D.M. Indicated that they had recently produced a treatment which when applied
    is to cigarette paper extends the time for spotting to occur on cigarettes by a few
    weeks when the products were stored in a high temperature, high humidity
    environment. The material is approved under current DHSS guidelines and in
    Germany it is accepted for use by the Health Ministry and now a Tobacco Company
    needs to request approval for its testing and usage. A sample has been requested
    for BAT evaluation.
    3. Data generated from the hand sheet samples produced by PDM at R&D's request
    was reviewed, essentially the data indicated that:- _rt~-
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    M. . 0461icl ; _
    (i) active magnesium oxide remained the best sidestrearn visibility
    reducing material
    (ii) application of citric acid does not produce significant reductions in
    sidestream nicotine yields and no further work is planned.
    (iii) calcium sulphate gives substantial increases in puff number with no
    distortion in CO to PMWNF deliveries and ash characteristics similar
    to those of calcium carbonate.
    (iv) The other samples were excluded themselves on the basis of
    unacceptable ash characteristics, no increase in puff number,
    insufficient reduction in sidestream etc.
    4. PDM expressed their opinions on the use of MgO both from a patent and
    manufacturing standpoint. In patent terms, two external lawyers have expressed
    opinions on the subject.
    Essentially, P DM are free and happy to use a paper including up to 10% MgO in
    it anywhere in Europe. This is because the relevant Ecusta patent was only sought
    and granted in the U.S.A. If paper was ultimately required for use in the U.S.A.,
    the level of MgO in the paper would have to be reduced to 7%.
    In terms of manufacture, 10% inclusion of MgO in the paper represents the
    workable limit, beyond that, fibre/filler slurries become too gelatinous to run
    successfully on a machine. Control of paper permeability is difficult below 12
    Coresta units. Additionally, any paper-making machinery running MgO, must be
    isolated in terms of its water supply and reclamation to avoid cross-contamination
    with other paper-making machines. PDM also elaborated on the difference
    between reactive and non-reactive MgO. Reactivity is simply based upon the time
    taken to neutralise citric acid. Active MgO neutralises this solution in - 15 seconds,
    non-reactive MgO never neutralises the solution. Also, active MgO firms a gel
    Mg(OH), in water whereas non-reactive MgO stays as discreet large particles (up
    to 15 microns). A report on these properties had previously been compiled by
    POM and a copy was requested by BAT.
    5. POM reported that recently K.C. had identified an ultra fine form of calcium
    carbonate that gave sidestream visibility reduction equivalent to that seen with
    MgO, samples were requested.
    Sample manufacture. On the basis of hand sheet data, two samples of the
    following specifications were requested:-
    Basis weight 40 gsm (before additive addition)
    Permeability 12 C.U.
    Filler 10% Mgo
    20% CaSO,
    Opacity 70 E.U.
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    This sample was requested with and without 5% sodium acetate as burn additive. DO
    BATCo document for Legal Services: Health Canada 19 October 1999

    




    "mm,"adILIA, .
    PDM felt that to mix 3 fillers, (i.e. chalk, MgO and calcium sulphate) would be
    impossible due to paper machine/refining problems.
    Discussion also centred around progressive replacement of chalk with calcium
    sulphate in a standard 50 or 80 C.U. Paper. PDM agreed to look into this also
    and would supply samples initially of a paper permeability that they found easiest
    to produce.
    6. The 013 paper situation was discussed. PDM stated it can be produced.
    Additionally, PDIVI reported both P.M. and R.J.R. had barred the use of Ti02 in
    cigarette paper. Consequently, this was why they had proposed an alternative
    specilication and R&D have requested a sample for evaluation.
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    BATCo document for Legal Services : Health Canada 19 October 1999