Tobacco Documents Online

Provides information on the change from glycerol to acrolein via pyrolysis. Lists the leaf variables and correlation coefficients (positive and negative) to the amount of acrolein in smoke as well as the multiple regression equation for acrolein levels in smoke. Mentions pyrolytic degradation of triethylene glycol to 1,4 Dioxane.

Special report compiles the chemistry and characteristics of menthol cigarettes and summarizes major R&D projects. States this report elucidates the current [1980] understanding of menthol and provides references to literature and internal reports.

States ultra-low or low yield male smokers have significantly higher plasma cotinine levels when they smoke Barclay cigarettes than when they smoke Now cigarettes. Finds subjects that smoke 1 mg FTC 'tar' cigarettes have cotinine levels similar to Vantage, while subjects that smoke a 7 to 12 mg FTC 'tar' cigarette have cotinine levels higher than Vantage. Says these data indicate Barclay yields are equivalent to Vantage and rejects the hypothesis that Barclay smokers receive the same delivery as smokers of Ultra-Low brands.

Memo presenting the results of infrared analysis of gas phase carbon monoxide, hydrogen cyanide and acetaldehyde in "diluted" cigarettes of various brands compared with 15 mg and 12 mg (nicotine?) controlled profile cigarettes.

Comments on use of the phrase "exclusive selectrate filter" on the Marlboro cigarette boxes. Weighs the possibility of the FTC not allowing the "selectrate" name to be used. Justifies use of "selectrate" because of its higher percentage of furfural removal compared to the removal of Tar and Nicotine. Debates use of the term "exclusive" compared to cellulose acetate filters. Suggests painting filter ends red as a "distinguishing mark" that "also connotes high quality." Recommends discussing the "selectivity problem" with "Tom Ahrensfeld to see how far he would be willing to fight the FTC's assumed arbitrary position on furfural" on the issue.

Philip Morris document stating two objectives: 1) developing methodology for assessing the ignition propensity of cigarettes, and 2) Develop the technology to produce a cigarette with decreased ignition propensity to ignite upholstered furniture. Lists under "Accomplishments" that nearly 100 models of the above were prepared and tested based on paper and filler modifications and additives. A marginal reduction in ignition propensity was achieved with high expanded tobacco blends. Substantial reduction was attained with paper modification or filter additives. Self-extinguishment was attained by rings coated circumferentially around the cigarette. Extent of ignition propensity depends on distance between rings. States that low ignition propensity models produced high deliveries and high puff counts. Planned to continue testing.

Reports micro-encapsulation menthol studies which establish a "sub-recognition" threshold of about 150 parts per million [ppm] using human subjects. Indicates the primary focus of these studies is to define the formulation of menthol or menthol analogues which would be useful as "smoke-smoothing" agents. Describes experimental design studying the micro-encapsulation of menthol in detail and presents these data in the form of charts and graphs.

Evaluation of proposed test for smoke pH. Notes the brand averages between 4.7-5.0 and similar results for straight tobacco grades. The narrow range is attributed to choice of whole smoke method, rather than Cambridge filter (TPM) method. Overwhelming presence of Carbon Dioxide in vapour phase, with pH of 3.7, reduces pH levels and differences between brands. Whole smoke pH measurements are of little practical use due to lack of discrimination. In addition, "we have tended to view 'whole smoke pH' as a step too far in what is already a distortion of the concept of pH." Recommends focus on particluate phase pH which can be more accurately defined as a homogenous solution. Also concludes: "There is no evidence that condensate pH results are higher for those brands which appear to have added DAP." Denies that Root (ammonia technology) materials give rise to increased total nitorgen in blend, but does agree that nitrogen in blend relates to smoke pH.

Primarily contains analytical data of puff-by-puff tar content of various test blends for controlled-profile Marlboro cigarettes. ontains charts of puff-by-puff TPM, water in TPM, nicotine content of TPM, hydrogen cyanide, acetaldehyde, acreolin and formaldehyde in these same test (controlled-profile) Marlboros.

Documents current research whose objective is to develop methods by which "to objectively and reliably evaluate human responses to cigarettes, smoke constituents and tobacco flavorants." Summarizes research results utilizing Cognitive Nasal Event-Related Potential (NERP) experiements, noting that preliminary evidence suggests that subjects are able to discriminate between the menthol and carbon dioxide and the natural and synthetic menthol. Includes further plans for the project. See Bates #2000783031 and #2023148745 for related documents. Duplicate of Bates #2000459464.