• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a mixture of reconstituted tobacco with catalysts for the reduction of the emission of toxic tobacco products and to the process for the preparation of said mixture. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2543851A1
    申请号:ES201301192
    申请日:2013-12-23
    公开日:2015-08-24
    发明作者:Antonio Francisco Marcilla Gomis；Amparo GÓMEZ DE SIRUANA；María Isabel BELTRÁN RICO；Isabel MARTÍNEZ CASTELLANOS；Deseada Berenguer Muñoz；Erika GIL BOJ
    申请人:Universidad de Alicante；
    IPC主号:
    专利说明:

            Field of the invention 10 The present invention relates to a process for the preparation of reconstituted tobacco with inclusion of catalysts and the mixture of reconstituted tobacco with catalysts for the reduction of the emission of toxic products. State of the art 15 Reconstituted tobacco means that material made from tobacco stalks, leaf remains, tobacco fines and other materials derived from the tobacco plant or plant origin that are processed by means of typical procedures of the manufacture of paper and tobacco fines that are not usable in the primary processes of cigarette making. Reconstituted tobacco is manufactured from stalks of 20 tobacco and tobacco fines produced in the primary tobacco processing. It consists of sheets, of the type of paper that is cut into strips and mixed with those of tobacco leaf in appropriate machinery for packaging in the form of cigarettes or in other types of presentations for other items likely to be smoked, such as rolling tobacco (RYO) or for filling tubes (MYO), pipe tobacco and others. 25 The typical stages in the process of making reconstituted tobacco are the following: 1. Storage of raw materials, which includes the reception and storage of these. 2. Extraction of soluble components in aqueous solvents. At this stage an aqueous extract is obtained which should be concentrated and re-added at a later stage of the process and an insoluble portion rich in fibers. 3. Extract concentration stage, which usually corresponds to a removal of water by evaporation to concentrate the components extracted in the previous stage. 4. Refining the insoluble portion and modifying the properties of the fibers to be able to proceed with its rolling. As described in patent ES2096728, which describes the use of an agent capable of breaking the cross-links of pectins by INCLUSION OF CATALYSTS IN FORMULATIONS OF TOBACCO RECONSTITUTED FOR REDUCTION OF THE ISSUANCE OF TOXIC PRODUCTS. DESCRIPTION 5 alkaline earth metals. In this way the released pectins can be distributed evenly throughout the material. 5. Formed in sheets. The cellulosic material is formed in sheets of paper type. 6. Reapplication of the concentrated extract on the sheets and application of an agent capable of restoring the cross-links of the pectins, or subjecting the sheets to about 10 conditions where the cross-linking of the pectins can take place, so that the shape of the pectin is stabilized material. 7. Drying and slicing of the sheets, where the material is given its shape and final moisture to be mixed with the tobacco leaf strips and processed in the appropriate machinery. 15 All the processes described and that are part of the process of manufacturing reconstituted tobacco are subject to multiple modifications. In this way there is a large number of patents, where each and every one of the operations described are modified and even replaced by other alternatives. Thus, for example, the raw materials have been modified including lignocellulosic materials, the inclusion of binder or adhesive materials to improve the mechanical properties of the sheets obtained has been considered, as described in US5584306, the inclusion of additives has been proposed. to confer special characteristics such as aromas and flavors to the material [US8434496] by modifying the final properties and texture of the material. The final form of these 25 materials has been varied from compact sheets to granular or even spongy materials or the direct use of the sheets to make rolling products [W02008056099]. Additives have been included to improve the development of the smoking process, such as micronized calcium carbonate [W02012170761] that improves combustibility and helps reduce emissions of CO and other components. In these and other patents, another series of process modifications have been proposed, such as the pectin dissolution system, the extraction system and the extracting solution, destructive agents of cross-linking between the pectins, the agents and processes to restore those links in the post-forming stage, the forming system, etc. New applications and products 35 continue to appear in the patent literature every year. On the other hand, in EP2092838 patent the utility of the mixture of meso and macroporous type catalysts, such as MCM41 materials with various modifications as well as meso-macroporous carbons, especially 5 activated to reduce the emission of most of the analyzed connotations in the main (and secondary) stream of tobacco smoke, both in the gases and in the liquids retained in the filters and in the traps. There is therefore a need to provide a reconstituted tobacco which includes a catalyst in order to reduce the fumes generated in the smoking process, in such a way that the present invention solves the aforementioned problem by the elaboration of reconstituted tobacco incorporating capable materials. to reduce the toxicity of the fumes generated in the smoking process of said reconstituted tobacco and its mixtures with tobacco or other products likely to be smoked (such as reconstituted tobacco that would not incorporate catalysts). Description of the invention Thus, in a first aspect, the present invention relates to a mixture (hereinafter referred to as a mixture of the present invention) which comprises reconstituted tobacco and / or expanded tobacco and at least one catalyst selected from: 20 a) SAB-15 type aluminosilicate, or its acidic forms, sical, exchanged with Fe, Na, K, Ca, Ce, Zr, its oxides of Fe, Na, K, Ca, Ce, Zr and mixtures thereof, b) Na-MCM-41, Na-Fe-MCM-41, Na-Ce-MCM-41, Na-Zr-MCM-41, mixtures thereof with Fe, Co or Zr Oxides; and mixtures, or 25 c) mesoporous activated carbons. In the present invention, reconstituted tobacco refers to tobacco made from tobacco stalks, leaf residues, tobacco fines or plant-derived tobacco plant processed by means of typical papermaking processes and tobacco fines that They are not usable in the primary processes of making 30 cigarettes. In the present invention, expanded tobacco refers to tobacco whose volume has expanded by rapid evaporation of a substance, such as dry ice. In the present invention mesoporous activated carbon refers to mesoporous activated carbon 35 with a particle size between 1-100 1.1, m, of high degree of activation, with a SBET surface between 1200-4200 m2 / g, a volume Vmic between 0.4-1.2 cm3 / g and a VMESO volume5 between 0.6-2.8 cm3 / g as an additive to reduce the toxic and carcinogenic substances present in tobacco smoke. In a particular embodiment, the catalyst concentration with respect to the rest of the constituent material of the mixture of the present invention is comprised between 0.1-60% by weight, more particularly between 10-35% by weight. In another embodiment, the catalyst concentration with respect to the final mixture of tobacco, reconstituted tobacco, expanded tobacco and other materials susceptible to being smoked is between 0.5-15% by weight, more particularly between 3-8% . In another particular embodiment of the present invention, the thickness of the reconstituted tobacco is between 10-500 microns. In another particular embodiment of the present invention the reconstituted or expanded tobacco is in a proportion comprised between 1-99% by weight with respect to the final mixture. In another aspect, the present invention relates to a process for the preparation of reconstituted and / or expanded tobacco of the present invention comprising a step of including at least one catalyst selected from: a) SAB-15 type aluminosilicate, or its acidic, sodic forms, exchanged with Fe, Na, K, Ca, Ce, Zr, its oxides of Fe, Na, K, Ca, Ce, Zr and mixtures thereof, b) Na-MCM-41, Na -Fe-MCM-41, Na-Ce-MCM-41, Na-Zr-MCM-41, mixtures thereof with Oxides of Fe, Ce or Zr, and mixtures, or c) mesoporous activated carbons. Description of the figures The figure shows details of the chromatograms (a, b and c) of the liquids retained 30 in the traps obtained for the mixture of reference tobacco and reconstituted tobacco, as well as for the mixture of reference tobacco and reconstituted tobacco including ( as described) one of the catalysts by way of example of the reduction obtained in almost all the peaks detected. Dashed line: mixtures of 3R4F with reconstituted tobacco with SBA foam catalyst; continuous line 35: tobacco without catalyst. 5 DETAILED DESCRIPTION OF THE INVENTION In all the examples the same reconstituted tobacco was used, obtained from reference tobacco of the University of Kentucky, 3R4F, to which different catalysts were added. These materials were mixed with normal 3R4F tobacco in proportions that accounted for a percentage of catalyst over the total of the mixture of 10 order of 5% and smoked in a smoking machine under conditions given by the ISO standard (ISO 3308, draft of 2 s duration, volume aspirated 35 mL, frequency of drafts 60 s and pressure loss in the draft less than 300 Pa). CO was determined, the fraction condensed in filters, TPM-F, in the traps, TPM-T (which represents the fraction that could pass to the lungs of smokers), nicotine, ash as well as a multitude of compounds present both in the gaseous fraction as in the condensed liquid fraction of the mainstream of tobacco smoke as described in Marcilla A., et al. 2011. Reduction of tobacco smoke components yields by zeolites and synthesized Al-MCM-41. Microporous and Mesoporous Materials 161, 14-24. The results were compared with those obtained by smoking mixtures 20 including reconstituted tobacco without catalyst in the same proportion as those containing catalyst, as with only 3R4F tobacco and 3R4F tobacco to which the same amount of catalyst has been added, but mixing Directly dust with tobacco. The cigarettes, once prepared, were conditioned at room temperature and 60% relative humidity, keeping them in a desiccator provided with a saturated solution of soclic nitrite, at least for 48 hours before being smoked. Preparation of reconstituted tobacco. Tobacco mixed with 100 3R4F cigarettes from the University of Kentucky was intensively mixed. 10 g of this tobacco was extracted at 60 ° C using 8 parts of distilled water for each part of tobacco. The resulting suspension was allowed to settle for 20 min. After separating the extract by 30 decantation, the resulting tobacco paste was ground in a steel roller mill for 5 minutes. The resulting paste was resuspended in water to a solids concentration of approximately 1%. After 10 minutes of homogenization, it was filtered through a metal sieve with a light of 50 .L. The resulting sheet had a moisture content of the order of 70%. Subsequently, approximately 2.3 g of an aqueous solution containing 3.2% by weight of ammonium orthophosphate hydrogen and 6.8% by weight of ammonia was added as a pectin releasing agent. The extract ° liquid obtained in the first stage was concentrated by evaporation to a concentration of approximately 74% of 5 water Said extract was heated to 54 ° C and was projected onto the previously obtained sheet approximately 10 seconds after spraying with the pectin releasing agent. Subsequently, the laminate was dried at 35 ° C for 24 h and the reconstituted tobacco lamina was obtained which was chopped into small pieces and stored, in an atmosphere of controlled temperature and humidity equal to the 10 used in the conditioning of the tobacco, until its later mixed with tobacco or its direct smoking. The thickness of the sheets obtained was adjusted to approximately 150 AI, this being a variable that has a marked influence on the subsequent behavior of the mixture in the smoking process, as will be discussed later. 15 Reconstituted tobacco including catalyst. In the examples presented below, different samples of reconstituted tobacco including catalysts were used. For the preparation of these samples, the procedure was analogous to that described in the previous section, with the only modification that the appropriate amount of each catalyst has been incorporated into the resuspensing stage of the insoluble tobacco mass in the process of extraction, after the refining process.In this regard it should be noted that the catalyst can be incorporated at any other stage of the process.The apparent density of the catalyst markedly affects the thickness that is achieved in the final product sheet. used usually have very low apparent densities, of the order of 100 kg / m3, the weight per unit area of these sheets decreases as the concentration of incorporated catalyst increases, if the thickness is maintained, if the weight is maintained per unit of surface area increases thickness significantly In the following examples a catalyst concentration has been used in the reconstituted tobacco of the order d 20% by weight, the thicknesses of the same order as those obtained for reconstituted tobacco without catalyst have been maintained and a catalyst concentration has been used in the final mixture of the order of 5% by weight, which means mixing the tobacco with reconstituted tobacco in a proportion of 4 to 1 by weight. The final effect of the catalysts on the processed products will depend, as already indicated, on the choice of these and other variables. The thickness of the sheets of reconstituted tobacco with catalyst, its density, the volume available for mixing with tobacco, the homogeneity of the resulting mixture, the process of mixing with tobacco, as well as other aspects, can have a positive or negative effect. in the process. 5 In the examples described, it has been decided to maintain the thickness of the reconstituted tobacco sheets obtained by adjusting the amount of starting tobacco for the preparation of each paste, since the filtering surface for the preparation of the sheet of material is It has kept constant. For the realization of these examples, three catalysts, C1, C2 and C3, were used. The first two correspond to materials of amorphous silicon macroporous SBA-15 type, the second one in the form of foam, and the third corresponds to an activated carbon of high degree of activation and a marked mesoporous character. The catalyst 1 synthesized following the procedure described in patent application P201201266. The following method 15 described in Meynen V., et al. Has been used to obtain the foam. Verified syntheses of mesoporous materials. Microporous and mesoporous materials. 125. 170-223. 2009 For the preparation of C3 the procedure described in patent application P201300305 has been followed. Table 1 shows a brief summary of the experiments carried out with the different samples of 3R4F tobacco (we will name them as T), tobacco + catalyst 20 (TCi), tobacco + reconstituted tobacco (TTR) and tobacco + (reconstituted tobacco + catalyst ) (TTRCi). 0.784 0 1.05 TTR 0.782 0 0.02 1.05 TC1 0.771 4.7 1.08 TC2 0.806 2.8 1.1 TC3 0.768 4.8 1.08 TTRC1 0.776 4.6 0.02 1.04 TTRC2 0.773 approx. 5 0.02 1.04 TTRC3 0.780 approx. 6 0.02 1.05 Table 1.- Mixtures carried out in the different tests carried out and characteristics of cigarettes 5 Below are the results obtained in each of the smoking experiments carried out, grouped by type of catalyst used. In this way, the effect that this causes on the mainstream of tobacco smoke when it is mixed directly with the tobacco can be observed, or it is added to the manufacturing process of the reconstituted tobacco. 10 Example 1: Tests performed with the SBA-15 catalyst Below are some of the results obtained when testing with the SBA-15 catalyst. In all cases 5% catalyst has been incorporated, either directly or included in the reconstituted tobacco. The 15 samples with reconstituted tobacco include 30-35% of this material. All prepared cigarettes have a mass that ranges around 0.8 g. Table 2. Percentage of catalyst, CO and TPM obtained by smoking tobacco under controlled conditions. 1. - 11.0 5.2 11.0 TTR - 13.2 5.6 11.7 TC1 4.7 8.7 1.5 6.1 TTRC1 4.6 10.6 2.5 7.5 20 As can be seen from the table in the presence of reconstituted tobacco, there was a slight increase in CO and TPM. In the presence of a catalyst, both in direct contact and in the process of making reconstituted tobacco, significant reductions were observed, direct contact being better in this case. The reductions achieved in the TPM-T were very interesting, in both cases reductions greater than 50% of the fraction generated with respect to the reference tobacco were achieved. The reductions already mentioned that were obtained for CO, TPM-F and TPM-T are shown below. 5 Table 3. Reductions obtained in CO and TPM Table 4 shows the values for some of the most relevant compounds found in the gaseous fraction of the mainstream of tobacco smoke. 10 Table 4. Concentration of the compounds analyzed in the gases coming from the smoking of the reference tobacco and percentage reduction with respect to said tobacco of the different cornposts analyzed in the gases coming from the smoking of the rest of the samples. Propionaldehyde 0.0228 -5.6 34.1 17.0 Toluene 0.0324 4.5 38.1 40.3 Benzene 0.117 -11.2 34.3 6.4 Chloromethane 0.046 -19.6 30.4 6.5 HCN 0.011 -9.1 27.3 18.2 Acetaldehyde 0.54 1.9 37.0 29.6 VOC's 3.32 -14.5 29.5 16.0 15 As for the fraction in liquid condensate in the case of nicotine when mixing T and TR practically the same amount was obtained (0.65 and 0.68 mg / cigarette) while using the Cl catalyst a reduction of the order of 66% was obtained while when using TR including this catalyst the reduction was 57%. Table 5 shows some of the compounds selected in the extract of the 5 traps, including nicotine, and a behavior similar to that described for this can be observed. Tab / a 5. Concentration of the compounds analyzed in the TPM-T fraction from smoking of the reference tobacco and percentage reduction with respect to said tobacco of the different cornposts analyzed in the smoking of the rest of the 10 samples. Nicotine 0.65 -4.6 66.1 57.0 Phenol 0.0016 -70.7 84.5 63.7 Limonene 0.0018 -102.1 68.1 50.8 Myosmine 0.0038 -40.2 70.9 73.2 p-Cresol 0.0024 -39.6 83.3 75.0 Hydroquinone 0.0006 -52.9 67.1 52.9 As can be seen in table 5 the reductions obtained in the fraction condensed in the smoke trap (fraction that is inhaled by the smoker), in the presence of a catalyst, was very high and, therefore, very interesting since this fraction is eliminated in a large proportion. Figure 1 shows, by way of example, the comatogram obtained from this fraction in the case where a reference tobacco mixture with reconstituted tobacco including the foam SBA catalyst was smoked. To better observe the effect mentioned, the chromatogram has been divided into three zones and the serial 20 obtained for the mixture that does not include the catalyst in each of the resulting figures has been displaced by one unit (1 minute) on the xy axis of arbitrary shape in the y axis (maintaining the scale indicated in each figure). A marked decrease in the area of almost all the peaks detected can be seen. 25 5 Example 2: Tests performed with the c2 foam catalyst Table 6. Percentage of catalyst, CO and TPM obtained by smoking tobacco under controlled conditions. 10 Table 7. Reductions obtained in CO and TPM In the presence of a catalyst, both in direct contact °, and added in the process of making reconstituted tobacco, reductions of considerable importance were observed, being in this case better when the catalyst was added to the reconstituted tobacco 15 Table 8. Concentration of the compounds analyzed in the gases from the smoking of the reference tobacco and percentage reduction with respect to said tobacco of the different compounds analyzed in the gases coming from the smoking of the rest of the samples.5 Benzene 0.117 34.6 Chloromethane 0.046 23.9 HCN 0.011 39.1 Acetaldehyde 0.54 55.6 VOC's 3.32 36.7 The amount of nicotine in the presence of the C2 catalyst was reduced 52% while when used) TR including this catalyst the reduction was 68%. Table 9 shows some of the compounds selected in the extract of the traps and a behavior similar to that described for nicotine can be observed. 10 Table 9. Concentration of the compounds analyzed in the TPM-T fraction from smoking of the reference tobacco and percentage reduction with respect to said tobacco of the different cornposts analyzed in e / smoking of the rest of the samples. Nicotine 0.65 52.3 67.7 Phenol 0.0016 84.1 84.1 Limonene 0.0018 -1.5 74.9 Myosmin 0.0038 36.2 73.5 p-Cresol 0.0024 66.7 91.7 Hydroquinone 0.0006 56.5 72.9 15 In the presence of catalyst C2, the results obtained when added to reconstituted tobacco are remarkable, since the quantity Some compounds, whether gases or liquids, are reduced in proportions greater than 50%. Example 3: Tests performed on an active carbon The results obtained when testing with the C3 catalyst were the following: 5 Table 10. Percentage of catalyst, CO and TPM obtained by smoking tobacco under controlled conditions. Table 11. Reductions obtained in CO and TPM 10 In the presence of a catalyst, both in direct contact and added in the process of making reconstituted tobacco, significant reductions were observed in both types of contact. The values for some of the most relevant compounds found in the gaseous fraction of the mainstream of tobacco smoke are shown below. Table 12. Concentration of the compounds analyzed in the gases from the smoking of the reference tobacco and percentage of reduction with respect to said tobacco of the different cornposts analyzed in the gases coming from the smoking of the rest of the samples.5 Toluene 0.0324 28.9 53.0 Benzene 0.117 35.5 34.0 Chloromethane 0.046 34.8 21.7 HCN 0.011 25.5 41.8 Acetaldehyde 0.54 48.1 55.6 VOC's 3.32 31.3 41.6 Nicotine in the presence of the C3 catalyst achieves a reduction of the order of 74% while when TR including this catalyst is used reduction is 78%. Table 10 shows some of the compounds selected in the extract of the traps and a behavior similar to that described for nicotine can be observed. 10 Tab / a 13. Concentration of the compounds analyzed in the TPM-T fraction from the smoking of the reference tobacco and percentage reduction with respect to said tobacco of the different cornposts analyzed in the smoking of the rest of the samples. Nicotine 0.65 73.8 78.5 Phenol 0.0016 94.9 92.3 Limonene 0.0018 94.8 84.0 Myosmine 0.0038 88.9 87.3 p-Cresol 0.0024 83.3 100 Hydroquinone 0.0006 70.6 100 15 In this case, for the different fractions generated, the catalyst behavior was very good in both types of sample. Figure 3 shows the chromatogram obtained, which shows the good behavior already mentioned. 5 Tables 2 to 13, and Figure 1, show that the catalysts used when added to the reconstituted tobacco provided a significant reduction in the amount of toxic compounds that appear in tobacco smoke. This reduction also contributed to a significant decrease in most of the compounds present in tobacco smoke, which entails a less negative effect, both in active and passive smokers, without causing appreciable changes in organoleptic properties and in the taste and consistency of tobacco.
    权利要求:
    Claims (1)
    [1]
     5 1. Mixture comprising reconstituted tobacco and / or expanded tobacco and at least one catalyst selected from: a) SAB-15 aluminosilicate, or its acidic, sodium forms, exchanged with Fe, Na, K, Ca, Ce, Zr , its Oxides of Fe, Na, K, Ca, Ce, Zr and mixtures thereof, b) Na-MCM-41, Na-Fe-MCM-41, Na-Ce-MCM-41, Na-Zr- MCM-41, its mixtures with Oxides of Fe, Ce or Zr; and mixtures or c) mesoporous activated carbons. 2. Mixture according to claim 1, wherein the catalyst concentration with respect to the remaining constituent material is comprised between 0.1-60% by weight. 3. Mixture according to claim 2, wherein the catalyst concentration with respect to other constituent material is between 10-35% by weight. 4. Mixture according to claim 1, wherein the catalyst concentration with respect to the final tobacco mixture is between 0.5-15% by weight. The mixture according to claim 4, wherein the catalyst concentration with respect to the final tobacco mixture is between 3-8% by weight. 6. Mixture according to claim 1, wherein the thickness of the reconstituted tobacco is between 10-500 microns. 7. Mixture according to claim 1, wherein the reconstituted or expanded tobacco is in a proportion comprised between 1-99% by weight with respect to the final mixture. Method for the preparation of reconstituted tobacco and / or expanded tobacco according to any of the preceding claims, characterized in that it comprises a step of including at least one catalyst selected from: a) SAB-15 aluminosilicate type, or its acidic, sodic forms, exchanged with 30 Fe, Na, K, Ca, Ce, Zr, their Oxides of Fe, Na, K, Ca, Ce, Zr and mixtures thereof, b) Na-MCM-41, Na- Fe-MCM-41, Na-Ce-MCM-41, Na-Zr-MCM-41, their mixtures with Oxides of Fe, Ce or Zr; and mixtures, c) mesoporous activated carbons. CLAIMS
    类似技术:
    公开号 | 公开日 | 专利标题
    RU2520047C1|2014-06-20|Tobacco aroma releasing material and tobacco aroma inhalator of non-heating type containing material
    JP2012525137A|2012-10-22|Aerosol generator for smoking products
    PT756461E|2001-04-30|TOBACCO PRODUCTS OR SIMILAR ARTICLES CONTAINING NATURAL SUBSTANCES WITH ANTIOXIDANT PROPERTIES AND PROCESS FOR PRODUCING THEMSELVES
    JPWO2012133289A1|2014-07-28|Non-combustion suction tobacco products
    KR20120083738A|2012-07-26|Capsule containing extract of persimmon
    US11246335B2|2022-02-15|Material for inclusion in a smoking article
    RU2604460C2|2016-12-10|Tobacco composition
    CN103141940B|2014-08-27|Entrapment agent for selectively lowering crotonaldehyde content in cigarette smoke and filter stick
    ES2543851B1|2016-08-08|Inclusion of catalysts in formulations of reconstituted tobacco for the reduction of the emission of toxic products
    US20050263165A1|2005-12-01|Tobacco leaf substitute
    CN109152417B|2022-01-11|Tobacco filler for non-combustion heating smoking article
    JP2016535980A|2016-11-24|Additive release material
    CN101141891B|2010-11-03|Instant tip rod appended solution when sucking cigarette and producing method and application
    JPH08505051A|1996-06-04|Filter cigarette
    RU2762867C1|2021-12-23|Material for inclusion in the smoking article
    EA027156B1|2017-06-30|Method of preparing tobacco-free smoking composition for hookah
    US20040094170A1|2004-05-20|Nicotine free cigarette substitute
    KR20210115605A|2021-09-27|Plasticizer for improved bio-degradability, filter, and smoking article including the same
    CN108685154B|2021-02-19|Smoking material and method of making same
    ES2528338B1|2015-11-12|Products that can be smoked with a nicotine controlled release system and catalyst for the reduction of toxic compounds
    CA2970822C|2019-04-23|Material for inclusion in a smoking article
    US10765141B2|2020-09-08|Material for inclusion in a smoking article
    WO2022038370A1|2022-02-24|A combustion retarding material and uses thereof
    ES1232659U|2019-07-19|TOBACCO MIXTURE WITH A SYNERGISTIC COMPOSITION OF ADDITIVES AND SALTS OF CARBOXYLIC ACIDS TO REDUCE THE GENERATION OF TOXIC COMPOUNDS IN TOBACCO SMOKE |
    WO2019229280A1|2019-12-05|Mixture of tobacco with a synergetic composition of additives and carboxylic acid salts for reducing the generation of tocix compounds in the tobacco smoke
    同族专利:
    公开号 | 公开日
    ES2543851B1|2016-08-08|
    WO2015097327A1|2015-07-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES2379639T3|2005-03-29|2012-04-30|British American Tobacco Limited|Smoke filters comprising porous carbon materials and smoking articles incorporating said filters|
    US20070204870A1|2006-02-27|2007-09-06|Sarojini Deevi|Catalysts to reduce carbon monoxide such as in the mainstream smoke of a cigarette|
    ES2301392A1|2006-11-07|2008-06-16|Universidad De Alicante|Tobacco/catalyst mixtures for reducing toxic compounds in tobacco smoke|WO2019229280A1|2018-06-01|2019-12-05|Universidad De Alicante|Mixture of tobacco with a synergetic composition of additives and carboxylic acid salts for reducing the generation of tocix compounds in the tobacco smoke|US5501237A|1991-09-30|1996-03-26|R. J. Reynolds Tobacco Company|Tobacco reconstitution process|
    US5584306A|1994-11-09|1996-12-17|Beauman; Emory|Reconstituted tobacco material and method of its production|
    GB0622182D0|2006-11-07|2006-12-20|British American Tobacco Co|Roll-your-own smokeable product|
    US8434496B2|2009-06-02|2013-05-07|R. J. Reynolds Tobacco Company|Thermal treatment process for tobacco materials|
    JO3752B1|2011-06-10|2021-01-31|Schweitzer Mauduit Int Inc|Tobacco Material Containing Non-Isometric Calcium Carbonate Microparticles|
    法律状态:
    2016-08-08| FG2A| Definitive protection|Ref document number: 2543851 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160808 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201301192A|ES2543851B1|2013-12-23|2013-12-23|Inclusion of catalysts in formulations of reconstituted tobacco for the reduction of the emission of toxic products|ES201301192A| ES2543851B1|2013-12-23|2013-12-23|Inclusion of catalysts in formulations of reconstituted tobacco for the reduction of the emission of toxic products|
    PCT/ES2014/070919| WO2015097327A1|2013-12-23|2014-12-15|Inclusion of catalysts in reconstituted tobacco formulations for reducing the emission of toxic products|
    [返回顶部]