US4038434A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antioxidant stabilized edible compositions
Assignee: Hall Howard and Co
•
Filing: 1976-03-12
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Granted: 1977-07-26
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Expires: 1996-03-12
Abstract
Abstract N-Acyl-2,6-dialkyl-p-aminophenols wherein each of the 2,6-alkyl groups has a tertiaryα-carbon atom, are used as antioxidants to stabilize edible organic substances subject to deterioration by oxidation, particularly edible fats, fatty oils, fatty alcohols, fatty acids, and esters of fatty acids.
Inventors
- 👤 David W. Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:44
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/20; C09K15/24; A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/762; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
91 words
A composition of matter normally subject to oxidative deterioration comprising an edible organic substance normally subject to oxidative deterioration selected from the group consisting of edible fats, fatty oils, fatty alcohols, fatty acids, and esters of fatty acids, and a minor amount effective as an antioxidant of an N-acyl-2,6-dialkyl-p-aminophenol of the formula ##STR4## wherein R is hydrogen or an alkyl group having from 1 to about 6 carbon atom and R 1 and R 2 are alkyl groups having from about 4 to 8 carbon atoms and a tertiary α-carbon atom.
Claim 2
Dependent Claim
91 words
A composition of matter normally subject to oxidative deterioration comprising an edible organic substance normally subject to oxidative deterioration selected from the group consisting of edible fats, fatty oils, fatty alcohols, fatty acids, and esters of fatty acids, and a minor amount effective as an antioxidant of an N-acyl-2,6-dialkyl-p-aminophenol of the formula ##STR4## wherein R is hydrogen or an alkyl group having from 1 to about 6 carbon atom and R 1 and R 2 are alkyl groups having from about 4 to 8 carbon atoms and a tertiary α-carbon atom.
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein R 1 and R 2 are alkyl groups having from 4 to 6 carbon atoms.
Claim 4
Dependent Claim
11 words
The composition of claim 2 wherein R is a methyl group.
Claim 5
Dependent Claim
10 words
The composition of claim 3 wherein the N-acyl-2,6-dialkyl-p-aminophenol is N-acetyl-2,6-di-t-butyl-p-aminophenol.
Claim 6
Dependent Claim
24 words
The composition of claim 1 wherein the N-acyl-2,6-dialkyl-p-aminophenol is in an amount at least about 0.005 percent by weight of the edible organic substance.
Claim 7
Dependent Claim
30 words
The composition of claim 1 wherein the N-acyl-2,6-dialkyl-p-aminophenol is in an amount from about 0.01 to about 1 percent by weight based on the weight of the edible organic substance.
Claim 8
Dependent Claim
10 words
The composition of claim 1 wherein the N-acyl-2,6-dialkyl-p-aminophenol is N-acetyl-2,6-di-t-butyl-p-aminophenol.
Claim 9
Dependent Claim
30 words
The composition of claim 7 wherein the N-acetyl-2,6-di-t-butyl-p-aminophenol is in an amount from about 0.01 to about 1 percent by weight based on the weight of the edible organic substance.
Claim 10
Dependent Claim
64 words
A composition of matter comprising a dough for making bakery products and a minor amount effective as an antioxidant of an N-acyl-2,6-dialkyl-aminophenol of the formula ##STR5## wherein R is hydrogen or an alkyl group having from 1 to about 6 carbon atoms and R 1 and R 2 are alkyl groups having from about 4 to 8 carbon atoms and a tertiary α-carbon atom.
Claim 11
Dependent Claim
64 words
A composition of matter comprising a dough for making bakery products and a minor amount effective as an antioxidant of an N-acyl-2,6-dialkyl-aminophenol of the formula ##STR5## wherein R is hydrogen or an alkyl group having from 1 to about 6 carbon atoms and R 1 and R 2 are alkyl groups having from about 4 to 8 carbon atoms and a tertiary α-carbon atom.
Claim 12
Dependent Claim
21 words
The composition of claim 9 wherein R 1 and R 2 are alkyl groups having from 4 to 6 carbon atoms.
Claim 13
Dependent Claim
11 words
The composition of claim 10 wherein R is a methyl group.
Claim 14
Dependent Claim
10 words
The composition of claim 9 wherein the N-acyl-2,6-dialkyl-p-aminophenol is N-acetyl-2,6-di-t-butyl-p-aminophenol.
References Cited (Backward Citations)
US2654722A
Cited
US3492349A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-25 | 1981-01-24 | 1981-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-25 | 1985-01-24 | 1985-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-25 | 1989-01-24 | 1989-07-26 | $7700.00 | Window Closed / Lapsed |