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US4036237A Expired / Lapsed US ⏱️ 0.0 years remaining

Smoking composition

Assignee: Philip Morris USA Inc
•
Filing: 1976-02-20
•
Granted: 1977-07-19
•
Expires: 1996-02-20
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Abstract

Abstract A smoking composition is provided which comprises a smoking material and, as a source of flavor or aroma for the smoke thereof, certain aromatic beta-hydroxy compounds. Compounds which may be employed as a source of flavor or aroma include beta-hydroxy esters formed by condensing, using a Reformatsky-type reaction, an alkyl alpha-bromo-isobutyrate or homolog thereof with an aromatic aldehyde such as benzaldehyde, anisaldehyde or piperonal. Other compounds which may be employed are the acids and/or metal salts which are formed by hydrolysis of such beta-hydroxy esters. Novel compositions of matter provided by the present invention include: the compound ethyl 2,2-dimethyl-3-hydroxy-3-(3',4'-methylenedioxyphenyl)-propionate, the compound n-amyl 2,2-dimethyl-3-hydroxy-3-phenylpropionate, the compound methyl 2,2-dimethyl-3-hydroxy-3-phenylpropionate, the compound 2,2-dimethyl-3-hydroxy-3-(3',4'-methylenedioxy phenyl) propionic acid, the compound ethyl 2,2-dimethyl-3-hydroxy-3-(p-methylphenyl)propionate, and the compound ethyl 2,2-dimethyl-3-hydroxy-5-phenyl-trans-4-pentenoate. The invention enables the incorporation in smoking materials, and particularly in tobacco, of compounds which will release flavors or aromas which compounds can be maintained and preserved during subsequent processing and storage of the tobacco.

Inventors

  • 👤 Lina Chen Teng

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 09:38
CPC Classifications
A; A24; A24B; A24B15/00; A24B15/18; A24B15/28; A24B15/30; A24B15/301

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 114 words
A smoking product comprising a smoking material and from at least 0.0001 percent by weight based on said smoking material, of a beta-hydroxy ester having the formula: ##STR8## wherein R may be a member selected from the group consisting of: ##STR9## wherein R' is a lower alkyl group, particularly methyl or ethyl; wherein R" is a lower alkyl group, particularly methyl or ethyl; and wherein R'" is a member selected from the group consisting of H, M, which may for example be an alkaki metal such as sodium or potassium, and alkyl containing from 1 to 8 carbon atoms, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec.-butyl, isobutyl, tert.butyl, n-amyl, n-hexyl, n-heptyl and n-octyl.
Claim 2
Dependent Claim 114 words
A smoking product comprising a smoking material and from at least 0.0001 percent by weight based on said smoking material, of a beta-hydroxy ester having the formula: ##STR8## wherein R may be a member selected from the group consisting of: ##STR9## wherein R' is a lower alkyl group, particularly methyl or ethyl; wherein R" is a lower alkyl group, particularly methyl or ethyl; and wherein R'" is a member selected from the group consisting of H, M, which may for example be an alkaki metal such as sodium or potassium, and alkyl containing from 1 to 8 carbon atoms, for example, methyl, ethyl, n-propyl, isopropyl, n-butyl, sec.-butyl, isobutyl, tert.butyl, n-amyl, n-hexyl, n-heptyl and n-octyl.
Claim 3
Dependent Claim 12 words
The smoking product of claim 1 wherein said smoking material is tobacco.
Claim 4
Dependent Claim 12 words
The smoking material of claim 2 wherein said compound is ethyl 2,2-dimethyl-3-hydroxy-3-phenylpropionate.
Claim 5
Dependent Claim 12 words
The smoking material of claim 2 wherein said compound is ethyl 2,2-dimethyl-3-hydroxy-3-(4'-methoxyphenyl)-propionate.
Claim 6
Dependent Claim 12 words
The smoking material of claim 2 wherein said compound is ethyl 2,2-dimethyl-3-hydroxy-3-(3',4'-methylenedioxyphenyl)-propionate.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-07-18 1981-01-17 1981-07-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-07-18 1985-01-17 1985-07-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-07-18 1989-01-17 1989-07-19 $7700.00 Window Closed / Lapsed

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