Patent US4470421A successfully refreshed from Google Patents.
US4470421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Smoking compositions
Assignee: Philip Morris USA Inc
•
Filing: 1982-05-03
•
Granted: 1984-09-11
•
Expires: 2002-05-03
Abstract
Abstract In one of its embodiments this invention provides a smoking composition which contains a novel type of flavorant additive as exemplified by polymerized ethyl 2-propenyl 2-(2-butyl)malonate: <IMAGE>
Inventors
- 👤 Everett W. Southwick
- 👤 Harvey J. Grubbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:07
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
127 words
A smoking composition comprising an admixture of (1) combustible filler selected from natural tobacco, reconstituted tobacco, non-tobacco substitutes, and mixtures thereof, and (2) between about 0.00001 and 2 weight percent, based on the total weight of filler, of a malonate diester corresponding to the formula: ##STR13## where R is a substituent selected from hydrogen and alkyl groups containing between about 1-12 carbon atoms, and at least one R is an alkyl group; R 1 is a substituent selected from saturated aliphatic, saturated alicyclic and aromatic groups containing between about 1-20 carbon atoms; and R 2 is a polymerizable substituent selected from olefinically unsaturated aliphatic and cycloaliphatic groups containing between about 2-20 carbon atoms; and wherein the molecular weight of the malonate diester is at least about 200.
Claim 2
Dependent Claim
127 words
A smoking composition comprising an admixture of (1) combustible filler selected from natural tobacco, reconstituted tobacco, non-tobacco substitutes, and mixtures thereof, and (2) between about 0.00001 and 2 weight percent, based on the total weight of filler, of a malonate diester corresponding to the formula: ##STR13## where R is a substituent selected from hydrogen and alkyl groups containing between about 1-12 carbon atoms, and at least one R is an alkyl group; R 1 is a substituent selected from saturated aliphatic, saturated alicyclic and aromatic groups containing between about 1-20 carbon atoms; and R 2 is a polymerizable substituent selected from olefinically unsaturated aliphatic and cycloaliphatic groups containing between about 2-20 carbon atoms; and wherein the molecular weight of the malonate diester is at least about 200.
Claim 3
Dependent Claim
20 words
A smoking composition in accordance with claim 1 wherein the non-tobacco substitutes are selected from pectinaceous, cellulosic and carbohydrate materials.
Claim 4
Dependent Claim
26 words
A smoking composition in accordance with claim 1 wherein the malonate diester is in a polymerized form having a molecular weight of at least about 400.
Claim 5
Dependent Claim
16 words
A smoking composition in accordance with claim 1 wherein the malonate diester is ethyl 2-methyl-3-butene-2-yl 2-(2-butyl)malonate.
Claim 6
Dependent Claim
18 words
A smoking composition in accordance with claim 4 wherein the ethyl 2-methyl-3-butene-2-yl 2-(2-butyl)malonate is in a polymerized form.
Claim 7
Dependent Claim
16 words
A smoking composition in accordance with claim 1 wherein the malonate diester is ethyl 3,7,11-trimethyl-1,6,10-dodecatriene-3-yl 2-(2-butyl)malonate.
Claim 8
Dependent Claim
18 words
A smoking composition in accordance with claim 6 wherein the ethyl 3,7,11-trimethyl-1,6,10-dodecatriene-3-yl 2-(2-butyl)malonate is in a polymerized form.
Claim 9
Dependent Claim
16 words
A smoking composition in accordance with claim 1 wherein the malonate diester is ethyl 2-propenyl 2-(2-butyl)malonate.
Claim 10
Dependent Claim
18 words
A smoking composition in accordance with claim 8 wherein the ethyl 2-propenyl 2-(2-butyl)malonate is in a polymerized form.
Claim 11
Dependent Claim
16 words
A smoking composition in accordance with claim 1 wherein the malonate diester is ethyl vinyl 2-(2-butyl)malonate.
Claim 12
Dependent Claim
18 words
A smoking composition in accordance with claim 10 wherein the ethyl vinyl 2-(2-butyl)malonate is in a polymerized form.
Claim 13
Independent Claim
138 words
A method of preparing a smoking composition which is adapted to impart flavoring to the mainstream and sidestream smoke under smoking conditions, which method comprises incorporating into natural tobacco, reconstituted tobacco, non-tobacco substitute or mixtures thereof between about 0.00001 and 2 weight percent, based on composition weight, of malonate diester flavorant additive corresponding to the formula: ##STR14## where R is a substituent selected from hydrogen and alkyl groups containing between about 1-12 carbon atoms, and at least one R is an alkyl group; R 1 is a substituent selected from saturated aliphatic, saturated alicyclic and aromatic groups containing between about 1-20 carbon atoms; and R 2 is a polymerizable substituent selected from olefinically unsaturated aliphatic and cycloaliphatic groups containing between about 2-20 carbon atoms; and wherein the molecular weight of the malonate diester is at least about 200.
Claim 14
Independent Claim
138 words
A method of preparing a smoking composition which is adapted to impart flavoring to the mainstream and sidestream smoke under smoking conditions, which method comprises incorporating into natural tobacco, reconstituted tobacco, non-tobacco substitute or mixtures thereof between about 0.00001 and 2 weight percent, based on composition weight, of malonate diester flavorant additive corresponding to the formula: ##STR14## where R is a substituent selected from hydrogen and alkyl groups containing between about 1-12 carbon atoms, and at least one R is an alkyl group; R 1 is a substituent selected from saturated aliphatic, saturated alicyclic and aromatic groups containing between about 1-20 carbon atoms; and R 2 is a polymerizable substituent selected from olefinically unsaturated aliphatic and cycloaliphatic groups containing between about 2-20 carbon atoms; and wherein the molecular weight of the malonate diester is at least about 200.
Claim 15
Dependent Claim
32 words
A method of preparing a smoking composition in accordance with claim 11 wherein the malonate diester flavorant additive is in a polymerized form having a molecular weight of at least about 400.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-11 | 1988-03-12 | 1988-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-11 | 1992-03-12 | 1992-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-11 | 1996-03-12 | 1996-09-11 | $7700.00 | Window Closed / Lapsed |