Patent US3639447A successfully refreshed from Google Patents.
Patent US3852481A successfully refreshed from Google Patents.
US3852481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic grinder gas aromas and processes
Assignee: General Foods Corp
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Filing: 1972-06-02
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Granted: 1974-12-03
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Expires: 1992-06-02
Abstract
Abstract Enhancement of coffee products is achieved by the addition of a grinder gas aroma produced by reacting methyl mercaptan with a mole excess of certain carbonyl compounds to produce a flavor and aroma mixture containing hemi-mercaptals and hemi-mercaptols.
Inventors
- 👤 J Feldman
- 👤 M Hamell
- 👤 E Danielczik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:47
CPC Classifications
A; A23; A23L; A23L27/00; A23L27/20; A23L27/28
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
85 words
A PROCESS FOR PREPARING SYNTHETIC GRINDER GAS COMPRISING CONTAIING FROM EACH NE MOLE OF METHYL MERCAPTAN A MOLAR EXCESS OF CARBONYL COMPOUNDS INCLUDING 0.6 TO 30 MOLES OF ACETONE, 2 TO 50 MOLES OF ACETALDEHYDE, 0.02 TO 3 MOLES OF BUTYRALDEYDE AND 0.2 TO 5 MOLES OF A LOWER ALKANE A-DIKETONE SELECTED FROM THE GROUP CONSISTING OF 2,3-BUTANEDIONE, 2,3: PENTANEDIONE AND MIXTURES THEREOF TO FORM A REACTION MIXTURE AND MAINTAINING SAID REACTION MIXTURE FOR A PERIOD OF TIME SUFFICIENT TO OBTAIN A GRINDER GAS AROMA.
Claim 2
Dependent Claim
85 words
A PROCESS FOR PREPARING SYNTHETIC GRINDER GAS COMPRISING CONTAIING FROM EACH NE MOLE OF METHYL MERCAPTAN A MOLAR EXCESS OF CARBONYL COMPOUNDS INCLUDING 0.6 TO 30 MOLES OF ACETONE, 2 TO 50 MOLES OF ACETALDEHYDE, 0.02 TO 3 MOLES OF BUTYRALDEYDE AND 0.2 TO 5 MOLES OF A LOWER ALKANE A-DIKETONE SELECTED FROM THE GROUP CONSISTING OF 2,3-BUTANEDIONE, 2,3: PENTANEDIONE AND MIXTURES THEREOF TO FORM A REACTION MIXTURE AND MAINTAINING SAID REACTION MIXTURE FOR A PERIOD OF TIME SUFFICIENT TO OBTAIN A GRINDER GAS AROMA.
Claim 3
Dependent Claim
27 words
The process of claim 1 in which the reaction mixture further includes isovaleraldehyde, methyl sulfide and pyridine, the diketone is 2,3-butane dione, and the butyraldehyde is isobutyraldehyde.
Claim 4
Dependent Claim
24 words
The process of claim 1 in which from 3 to 90 moles of carbonyl compounds are employed for each one mole of methyl mercaptan.
Claim 5
Dependent Claim
64 words
A synthetic grinder gas aroma comprising a reaction mixture of a molar excess of carbonyl compounds including 0.6 to 30 moles of acetone, 2 to 50 moles of acetaldehyde, 0.02 to 3 moles of butyraldehyde and 0.2 to 5 moles of a lower alkane Alpha -diketone from the group consisting of 2,3-butanedione, 2,3-pentanedione and mixtures thereof and in proportion one mole of methyl mercaptan.
Claim 6
Dependent Claim
64 words
A synthetic grinder gas aroma comprising a reaction mixture of a molar excess of carbonyl compounds including 0.6 to 30 moles of acetone, 2 to 50 moles of acetaldehyde, 0.02 to 3 moles of butyraldehyde and 0.2 to 5 moles of a lower alkane Alpha -diketone from the group consisting of 2,3-butanedione, 2,3-pentanedione and mixtures thereof and in proportion one mole of methyl mercaptan.
Claim 7
Dependent Claim
22 words
The aroma of claim 4 which further includes isovaleraldehyde, methyl sulfide and pyridine, the diketone is 2,3-butanedione and the butyraldehyde is isobutyraldehyde.
Claim 8
Dependent Claim
44 words
A process for enhancing the aroma and flavor of coffee, either regular or soluble, decaffeinated regular or decaffeinated soluble comprising adding to the coffee a small but effective amount of the aroma of claim 4 to enhance the aroma and flavor of the coffee.
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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |