DE2260283A1 - SMOKE MIXTURES - Google Patents

Description

Cap 2 * 062 - Or. K.
Case Dt 24-569

Imperial Chemical Industries Ltd. London, UK

Smoke mixtures

Priority: December 15, 1971 - Great Britain

The invention relates to smoke mixtures, which from consist of a solid combustible material other than tobacco and a flavor compound.

The prevailing opinion at the moment is that the Smoking tobacco, especially in the form of cigarettes, the occurrence of lung cancer and bronchial complaints elevated. As a result, the replacement of tobacco in smoke mixtures with cellulose and other smoke-producing substances has become

309825/0833.

Materials discussed, but these mixtures were used by the Smokers not yet accepted because of the smoky taste differs too much from the taste of tobacco smoke.

The invention now relates to a smoke mixture which Consists of a solid combustible material other than tobacco and, as a flavoring agent, a compound of the formula

CH

Π Γι

or

OC

x ²

contains, where X represents the atoms required to complete of a carbocyclic or heterocyclic ring with 5 or 6 carbon atoms are necessary and X for an alkyl radical with preferably 1 to 4 carbon atoms.

The solid combustible material can be a smoke producing carbohydrate, such as 3. orCellulose, a cellulose ether, for example Methyl cellulose, hydroxyethyl cellulose or carboxymethyl cellulose, or a modified cellulose, for example an oxidized cellulose. It can also be made from sugar, Starch, alginate, pectin or a natural gum.

It is preferred, however, that the solid combustible material be a thermally degraded carbohydrate, in particular a thermally degraded cellulose, such as is obtained, for example, by the process described in the GB-P3 1,113,979. This is a carbohydrate

3U982S / 0833

BATH ORIGINAL

subjected to catalyzed degradation at 100 to 25 ° C. until the weight of the degraded material is less than -9.Q -Sew " -% <, based on the dry weight of the original Eohlehy '-. Preferred degradation catalysts in such a process are sulfuric acid, sulfamic acid and ammonium.

sulfamate.

The solid combustible material ¹ can also be a condensation product, such as is produced, for example, in accordance with British patent application 22270/69 by an acidic or base catalyzed condensation of a compound of the formula

R ¹ COCH ₂ -CH ₂ COR ² (I)

(or a precursor thereof), wherein R and R ^ "can be the same or different and each represent a hydrogen atom or an alkyl, hydroxyalkyl or formyl group. Preferred such products are condensates of succinaldehyde, or acetylacetone or a Condensate from a precursor of (I) which contains a purane ring structure. '- - - _{; :} ,

The smoking niches can also contain other components, as they are commonly used to convey certain physi— ■ to achieve kaiische properties and burning characteristics, such as fillers, binders, plasticizers, humectants, Dye controlling glow Catalysts, ash improvers, nicotine, drugs and other flavoring agents besides those of the above formula (A or B). '.

BAD ORIGiNAL 3U982S / 0 83 3 ■ '

In the formula (A) for the flavor compounds To complete the ring, X is preferably chosen so that furan or pyran rings are formed.

Specific examples of flavor compounds of formula (A) are:

Corylone (2-hydroxy-3-methyl-2-cyclopenten-1-one) Maltol (3-hydroxy-2-methyl-pyran-4-one) Dihydromaltol (3-hydroxy-2-methyl (5 »6H) pyran-4-one) Ethyl maltol (3-hydroxy-2-ethyl-pyran-4-one) ti-Hydroxy-ß-methyl-V-hexenolactone O-Kydroxy - ^ - methyl - ^ - inethyl-

(5-H) furan)

A specific example of a flavor compound of the formula (B) is isomaltol (3-hydroxy-2-acetyl-furan).

For the preparation of the smoke mixtures according to the invention, the flavoring compounds can be added by any desired Technology can be incorporated into the solid combustible material. Conveniently, a solution of the flavor compound is used sprayed in a volatile solvent onto the combustible material in film form or in crushed form, Surprisingly, the smoke from the smoke mixture according to the invention tastes more like tobacco than that solid combustible material alone.

The proportion of the flavoring agent to achieve a tobacco-like one Taste is very small. It is generally less than 2% by weight. So are maltol, isomaltol, dihydromaltol and ethyl maltol is preferably used in amounts of 0.7 to 1.5% by weight. However, Corylone is a much stronger one Flavoring agent and is preferably used in amounts of from 0.01 to 0.3% by weight.

309825/0833

If necessary, the abdominal mixtures can be mixed with tobacco, for example in amounts of up to 50% tobacco. Such mixtures are less dangerous to health than tobacco when smoked alone. The taste of the smoke is better than corresponding mixtures that do not contain a flavoring compound.

The invention will now be further elucidated by the following examples

and "'explains where the parts are parts by weight for the abbreviation SCHC means sodium carboxymethyl cellulose. All taste definitions referred to in these examples were carried out by a group of experts who have extensive experience in determining the taste of cigarette tobacco own.

Example 1 .

9 parts of glycerin and 2 parts of ammonium sulfate were in 400 Share dissolved water. Then 12 parts of the SCMC were deigned Solution added and stirring continued for 10 minutes. A mixture of was added to this stirred solution 28.6 parts of magnesite, 16.5 parts of calcium carbonate, 5 parts Bentonite and 26.9 parts of a material added, which by heat treatment of cü-cellulose in the presence of Ammanium sulfamate produced up to a weight loss of 25% had been. Then continue stirring for at least 1 hour.

The resulting slurry was poured onto a glass plate, so that a film with a dry basis weight of 48 to 52 g / m 2 was obtained «. The film was crushed and with 0.01 part CoryJ.on ^ -hydroxy ^ -methyl ^ -cyclopenten-i-one

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■ - O ■ "*

splashed in diethyl ether solution. The ether was evaporated, and the crushed material was moistened and rubbed with its own weight of a canine pickled Virginia tobacco mixed. The mixture was made into cigarettes. Taste determinations of these cigarettes against a similar one Mixtures without corylone indicated that the former mixture was preferred because of the better tobacco taste.

Example 2

Example 1 was repeated using 0.0 $ part of gorylone.

The Corylone-containing cigarettes were again preferred to have a better taste compared to cigarettes without Corylone.

Example 3

8.7 parts of glycerol and 2 parts of ammonium sulfate were dissolved in 1/2 parts of water. Then 11.6 parts of SCMC were added to the stirring solution and stirring was continued for 10 minutes. A solution of 3 parts of 1-nicotine and 3 parts of lactic acid in 40 parts of v / water was then added with stirring, followed by the addition of a mixture of 26 parts of magnesite, 14.7 parts of calcium carbonate, 4.9 parts of benxonite and 26.1 parts This was followed by dividing a material which had been produced by heat treatment of α-cellulose in the presence of ammonium sulphamate to a weight loss of 25% . Stirring was then continued for at least 1 hour.

309825/0833 bad original

The resulting slurry was poured onto glass plates, so that a PiIm with a dry basis weight of 48 to

52 g / m 2 was obtained. The egg was crushed and with Splashed 0.01 parts of Corylone in dietary ether solution. Of the Zther was removed by evaporation and this was crushed Moistened material was mixed with its own weight of an Eamin pickled Virginia tobacco. The mixture was used in cigarettes.

Taste determinations of these cigarettes against similar mixtures

without Corylone showed that the former was due to the better tobacco

taste was preferable ;. So this shows that there is a taste effect of Corylone is present when nicotine is also present.

Example 4

5.32 parts of a material obtained by heat treatment of or-cellulose in the presence of ammonium sulfamate up to a Weight loss of 25% had been made with 60 parts of water mixed and ground in a disintegrator. Then there was 1.18 parts of glycerin followed by 0.2 parts Maltol and 0.4 part ammonium sulfate in 20 parts water were added to the stirred mixture. A dry mix of 3.28 parts calcium carbonate and 0.98 parts bentonite then added, followed by the addition of 2.98 parts of sodium carboxymethyl cellulose and 5-66 parts of magnesite. The resulting slurry was then stirred for at least 1 hour. The slurry then became a film

2 cast, which has a dry basis weight of 48 to 52. g / m exhibited. ■ '

30982S / 0833 - bad original

The film was crushed, and so was the crushed material was mixed with chimney-pickled tobacco so that a mixture of 50% tobacco was obtained. The mixture was in Processed cigarettes.

Taste determinations of these cigarettes against a similar one Mixture without Iialtol showed that the former mixture because of the The better taste of Virginia tobacco pickled in the fireplace was preferable.

A similar taste is obtained when using isomaltol, Dihydromaltol, ethyl maltol or 2-hydroxy ~ ß-methyl- ^ hexenolactone used instead of maltol.

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on 11 ... LlI -.1 - ''> 7 ". ^;

Claims (8)

Patent claims e 1. Smoke mixture consisting of a solid combustible Material other than tobacco and a flavoring agent, characterized in that it is a compound of the formula as a flavoring agent OH' or FT Cw. "tr Il ο where X represents the atoms necessary to complete a carbocyclic or heterocyclic ring with 5 or 6 carbon atoms and χ represents an alkyl radical with preferably 1 to 4 carbon atoms. 2. Smoke mixture according to claim 1, characterized in that that the solid combustible material consists of a thermally degraded carbohydrate. 3 · Smoke mixture according to claim Λ , characterized in that the solid combustible material consists of thermally degraded cellulose. 4 ·. Additive mixture according to one of claims 2 or 3 » characterized in that the thermally degraded carbohydrate has been made by taking carbohydrate 30982670833 "/ ί - - subjected to a catalyzed degradation at 100 to 250 ⁰ C until the weight of the degraded material is less than 90% of the weight of the original carbohydrate. 5. Smoke mixture according to one of the preceding claims, thereby characterized in that the portion of the flavoring agent is less than 2% by weight. 6. Belly mixture according to one of the preceding claims, characterized in that Corylone is used as a flavoring agent will. 7. Puff mixture according to claim 6, characterized in that the proportion of the flavoring agent is 0.01 to 0.3% by weight amounts to. 8. puff mixture according to one of claims 1 to 5 »characterized in that maltol, dihydromaltol, Ethyl maltol, isomaltol or α-hydroxy-S-methyl-yhexenolactone is used. 9 puff mixture according to claim 8, characterized in that that the proportion of the flavoring agent 0.7 to 1.5 wt .-% amounts to. f * \ lh: I. 309825/0833