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US4171702A
Expired / Lapsed
US
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Poly (isopropenyl esters) as carboxylic acid-release agents on tobacco
Assignee: Philip Morris USA Inc
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Filing: 1978-01-10
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Granted: 1979-10-23
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Expires: 1998-01-10
Abstract
Abstract {PG,1 This invention provides carboxylic acid flavorant-release oligomeric and polymeric derivatives corresponding to the structural formula: {r1 {tc,1 {rb {ab,44 {m,1 {sb,25 {us,5 {ob,4 {mr,1 CH{HD 2{AB,4 {M,2 {AB,0 CH{HD 3{MR,2 {AB,8 O{MX,2 {AB,8 C{AD,4 O{MX,2 {AB,8 R{MR,2 C{AB,444 {SB,26 {US,5 {CB,4 {S,6 {BL,88 {HD n{re {PS {PS WHEREIN R is a member selected from aliphatic, alicyclic, and aromatic hydrocarbon radicals and n is an integer. The oligomeric and polymeric derivatives are stable when used in smoking products and on pyrolysis release the carboxylic acid flavorants to enhance the flavor and aroma of the smoke.
Inventors
- 👤 Harvey J. Grubbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 23:31
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/32
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
69 words
A smoking composition having incorporated therein from a small but effective amount up to about 1.0% based on the weight of the composition of a carboxylic acid flavorant-release poly(isopropenyl ester) having the formula: ##STR9## wherein R is a member selected from the group consisting of aliphatic, alicyclic, and aromatic hydrocarbon radicals containing between 1 and about 10 carbon atoms and n is an integer between 2 and about 200.
Claim 2
Dependent Claim
69 words
A smoking composition having incorporated therein from a small but effective amount up to about 1.0% based on the weight of the composition of a carboxylic acid flavorant-release poly(isopropenyl ester) having the formula: ##STR9## wherein R is a member selected from the group consisting of aliphatic, alicyclic, and aromatic hydrocarbon radicals containing between 1 and about 10 carbon atoms and n is an integer between 2 and about 200.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein n is an integer between about 5 and 50.
Claim 4
Dependent Claim
25 words
The composition of claim 1 wherein R is a member selected from the group consisting of aliphatic radicals containing between 1 and 6 carbon atoms.
Claim 5
Dependent Claim
9 words
The composition of claim 3 wherein R is methyl.
Claim 6
Dependent Claim
9 words
The composition of claim 3 wherein R is ethyl.
Claim 7
Dependent Claim
11 words
The composition in accordance with claim 3 wherein R is propyl.
Claim 8
Dependent Claim
11 words
The composition in accordance with claim 3 wherein R is isopropyl.
Claim 9
Dependent Claim
11 words
The composition in accordance with claim 3 wherein R is isobutyl.
Claim 10
Dependent Claim
11 words
The composition in accordance with claim 3 wherein R is butyl.
Claim 11
Dependent Claim
11 words
The composition in accordance with claim 3 wherein R is pentyl.
Claim 12
Dependent Claim
12 words
The composition of claim 1 comprising an admixture of natural tobacco materials.
Claim 13
Dependent Claim
10 words
The composition of claim 1 comprising a nontobacco substitute material.
Claim 14
Dependent Claim
13 words
The composition of claim 1 comprising an admixture of natural and reconstituted tobacco.
References Cited (Backward Citations)
US2646437A
Cited
US2766147A
Cited
US2766148A
Cited
US2766145A
Cited
US2766149A
Cited
US4119106A
Cited
US4092988A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-22 | 1983-04-23 | 1983-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-22 | 1987-04-23 | 1987-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-22 | 1991-04-23 | 1991-10-23 | $7700.00 | Window Closed / Lapsed |