IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
UP-0740510
(2003-12-22)
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등록번호 |
US-7827996
(2010-11-25)
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발명자
/ 주소 |
- Fournier, Jay A
- Luan, Zhaohua
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출원인 / 주소 |
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대리인 / 주소 |
Buchanan Ingersoll & Rooney PC
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인용정보 |
피인용 횟수 :
1 인용 특허 :
59 |
초록
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Smoking articles which involve the use of amphiphile-modified sorbents are disclosed. The amphiphile-modified sorbent has at least one amphiphilic compound bound to an inorganic molecular sieve substrate. The amphiphile-modified sorbent selectively removes certain constituents from cigarette smoke,
Smoking articles which involve the use of amphiphile-modified sorbents are disclosed. The amphiphile-modified sorbent has at least one amphiphilic compound bound to an inorganic molecular sieve substrate. The amphiphile-modified sorbent selectively removes certain constituents from cigarette smoke, while maintaining other constituents, such as those that contribute to flavor. Methods for making cigarette filters and smoking articles using amphiphile-modified sorbents, as well as methods for smoking a cigarette containing an amphiphile-modified sorbent, are also provided.
대표청구항
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What is claimed is: 1. A smoking article comprising an amphiphile-modified sorbent having at least one amphiphilic compound wherein the amphiphilic compound is a quaternary ammonium compound having one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, w
What is claimed is: 1. A smoking article comprising an amphiphile-modified sorbent having at least one amphiphilic compound wherein the amphiphilic compound is a quaternary ammonium compound having one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH and optionally interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, wherein R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms, bound to an inorganic molecular sieve substrate. 2. The smoking article of claim 1, wherein the smoking article is selected from the group consisting of a cigarette, a pipe, a cigar and a non-traditional cigarette. 3. The smoking article of claim 2, wherein the smoking article is a cigarette. 4. The smoking article of claim 1, wherein the amphiphile-modified sorbent is located in a filter. 5. The smoking article of claim 4, wherein the filter is a mono filter, a dual filter, a triple filter, a cavity filter, a recessed filter or a free-flow filter. 6. The smoking article of claim 1, wherein the amphiphile-modified sorbent is capable of removing at least some of at least one selected constituent of mainstream smoke by molecular sieving, ion exchange, hydrophobic interactions, chelation, chemical binding, or combinations thereof. 7. The smoking article of claim 1, wherein the amphiphile-modified sorbent selectively removes at least some of at least one selected constituent of mainstream smoke. 8. The smoking article of claim 1, wherein the amphiphile-modified sorbent is capable of removing at least some of a hydrocarbon compound constituent of mainstream smoke or a polar organic compound constituent of mainstream smoke. 9. The smoking article of claim 1, wherein the amphiphile-modified sorbent is capable of removing at least some of an organic compound constituent of mainstream smoke. 10. The smoking article of claim 1, wherein the amphiphile-modified sorbent is capable of removing at least one selected constituent of mainstream smoke selected from the group consisting of aldehyde, carbon monoxide, 1,3-butadiene, isoprene, acrolein, acrylonitrile, hydrogen cyanide, o-toluidine, 2 naphtylamine, nitrogen oxide, benzene, N-nitrosonornicotine, phenol, catechol, benz(a)anthracene, and benzo(a)pyrene. 11. The smoking article of claim 10, wherein the amphiphile-modified sorbent is capable of removing at least some of an aldehyde constituent of mainstream smoke. 12. The smoking article of claim 1, wherein the amphiphilic compound comprises an alkyl quaternary ammonium compound having the formula: (CH3(CH2)n)3—N+—R0 (I) wherein n=0, 1, or 2, and wherein R0 is a straight chain alkyl group of 6-18 carbon atoms which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and optionally is interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, wherein R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms. 13. The smoking article of claim 12, wherein n=0. 14. The smoking article of claim 1, wherein the inorganic molecular sieve substrate is selected from the group consisting of zeolite, aluminophosphate, silicate, aluminosilicates, and mixtures thereof. 15. The smoking article of claim 14, wherein the inorganic molecular sieve substrate is a zeolite selected from the group consisting of zeolite ZSM-5, zeolite A, zeolite X, zeolite Y, zeolite K-G, zeolite ZK-5, zeolite Beta, zeolite ZK-4, and mixtures thereof. 16. The smoking article of claim 1, wherein the amphiphilic compound is electrostatically bound to the surface of the inorganic molecular sieve substrate. 17. The smoking article of claim 1, wherein the amphiphile-modified sorbent is in particle form having an average mesh size from about 20 mesh to about 60 mesh. 18. The smoking article of claim 1, wherein the smoking article is a cigarette including from about 50 mg to about 300 mg of the amphiphile-modified sorbent. 19. The smoking article of claim 18, wherein the smoking article is a cigarette including from about 100 mg to about 200 mg of the amphiphile-modified sorbent. 20. The smoking article of claim 1, wherein the molecular sieve comprises a mesoporous molecular sieve. 21. A cigarette filter comprising an amphiphile-modified sorbent having at least one amphiphilic compound, wherein the amphiphilic compound is a quaternary ammonium compound having has one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and optionally interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, wherein R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms, bound to an inorganic molecular sieve substrate. 22. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is capable of removing at least some of at least one selected constituent of mainstream smoke by molecular sieving, ion exchange, hydrophobic interactions, chelation, chemical binding, or combinations thereof. 23. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent selectively removes at least some of at least one selected constituent of mainstream smoke. 24. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is capable of removing at least some of a hydrocarbon compound constituent of mainstream smoke, or a polar organic compound constituent of mainstream smoke. 25. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is capable of removing at least some of an organic compound constituent of mainstream smoke. 26. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is capable of removing at least one selected constituent of mainstream smoke selected from the group consisting of aldehyde, carbon monoxide, 1,3-butadiene, isoprene, acrolein, acrylonitrile, hydrogen cyanide, o-toluidine, 2-naphtylamine, nitrogen oxide, benzene, N-nitrosonornicotine, phenol, catechol, benz(a)anthracene, and benzo(a)pyrene. 27. The cigarette filter of claim 26, wherein the amphiphile-modified sorbent is capable of removing at least some of an aldehyde constituent of mainstream smoke. 28. The cigarette filter of claim 21, wherein the amphiphilic compound comprises an alkyl quaternary ammonium compound having the formula: (CH3(CH2)n)3—N+—R0 (I) wherein n=0, 1, or 2, and wherein R0 is a straight chain alkyl group of 6-18 carbon atoms which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and optionally is interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, wherein R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms. 29. The cigarette filter of claim 28, wherein n=0. 30. The cigarette filter of claim 21, wherein the inorganic molecular sieve substrate is selected from the group consisting of zeolite, aluminophosphate, silicate, aluminosilicates, and mixtures thereof. 31. The cigarette filter of claim 30, wherein the inorganic molecular sieve substrate is a zeolite selected from the group consisting of zeolite ZSM-5, zeolite A, zeolite X, zeolite Y, zeolite K-G, zeolite ZK-5, zeolite Beta, zeolite ZK-4, and mixtures thereof. 32. The cigarette filter of claim 21, wherein the amphiphilic compound is electrostatically bound to the surface of the inorganic molecular sieve substrate. 33. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is in particle form having an average mesh size from about 20 mesh to about 60 mesh. 34. The cigarette filter of claim 21, wherein the smoking article is a cigarette including from about 50 mg to about 300 mg of the amphiphile-modified sorbent. 35. The cigarette filter of claim 34, wherein the smoking article is a cigarette including from about 100 mg to about 200 mg of the amphiphile-modified sorbent. 36. The cigarette filter of claim 21, wherein the filter is selected from the group consisting of a mono filter, a dual filter, a triple filter, a cavity filter, a recessed filter, and a free-flow filter. 37. The cigarette filter of claim 21, wherein the filter comprises at least one material selected from the group consisting of cellulose acetate tow, cellulose paper, mono cellulose, mono acetate, and combinations thereof. 38. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is incorporated into one or more cigarette filter parts selected from the group consisting of shaped paper insert, a plug, a space, cigarette filter paper, and a free-flow sleeve. 39. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is incorporated with cellulose acetate fibers forming a plug or a free-flow filter element. 40. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is incorporated with polypropylene fibers forming a plug or free-flow filter element. 41. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is incorporated in at least one of a mouthpiece filter plug, a first tubular filter element adjacent to the mouthpiece filter plug, and a second tubular filter element adjacent to the first tubular element. 42. The cigarette filter of claim 21, wherein the amphiphile-modified sorbent is incorporated in at least one part of a three-piece filter including a mouthpiece filter plug, a first filter plug adjacent to the mouthpiece filter plug, and a second filter plug adjacent to the first filter plug. 43. A method of making a cigarette filter, the method comprising incorporating an amphiphile-modified sorbent having at least one amphiphilic compound, wherein the amphiphilic compound is quaternary ammonium compound having one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH and optionally interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, wherein R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms, bound to an inorganic molecular sieve substrate. 44. The method of claim 43, wherein the filter is a mono filter, a dual filter, a triple filter, a cavity filter, a recessed filter or a free-flow filter. 45. A method of making a cigarette, the method comprising: (i) providing a cut filler to a cigarette making machine to form a tobacco column; (ii) placing a paper wrapper around the tobacco column to form a tobacco rod; (iii) providing a cigarette filter comprising an amphiphile-modified sorbent having at least one amphiphilic compound, wherein the amphiphilic compound is a quaternary ammonium compound having one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and optionally interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, wherein R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms, bound to an inorganic molecular sieve substrate. 46. A method of smoking a cigarette comprising an amphiphile-modified sorbent having at least one amphiphilic compound, wherein the amphiphilic compound is a quaternary ammonium compound having one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and optionally interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, wherein R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms, bound to an inorganic molecular sieve substrate, comprising lighting the cigarette to form smoke and drawing the smoke through the cigarette, wherein during the smoking of the cigarette, the amphiphile-modified sorbent removes at least one selected constituent from mainstream smoke. 47. The method of claim 46, wherein at least one selected constituent of mainstream smoke is removed by molecular sieving, ion exchange, hydrophobic interactions, chelation, chemical binding, or combinations thereof. 48. The method of claim 46, wherein the amphiphile-modified sorbent selectively removes at least some of an organic compound constituent of mainstream smoke. 49. The method according to claim 46, wherein the amphiphile-modified sorbent removes at least some of an aldehyde constituent of mainstream smoke. 50. The smoking article of claim 1, wherein the quaternary ammonium compound has one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and is interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, where R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms. 51. The cigarette filter of claim 21, wherein the quaternary ammonium compound has one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and is interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, where R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms. 52. The method of claim 46, wherein the quaternary ammonium compound has one aliphatic, saturated or unsaturated, straight, branched, or cyclic, chain of 6-18 carbon atoms, which is substituted at any number of positions with one or more of —NH2, —OH, —SH, or —COOH, and is interrupted by one or more of —NH—, —CH═CH—, —CHR1—, —CR1′R1″—, or —NR1—, where R1, R1′ and R1″ are alkyl groups of 1 to 24 carbon atoms, and three alkyl groups of 1-3 carbon atoms.
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