US4054676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edible with polymeric hydroquinone antioxidant
Assignee: ATK Launch Systems LLC
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Filing: 1974-12-04
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Granted: 1977-10-18
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Expires: 1994-12-04
Abstract
Abstract Polymeric hydroquinones of the structure ##STR1## , wherein n is from 3 to 10,000 inclusive and R and R' independently are hydrogen or a lower alkyl, are disclosed, as is the preparation and the use of such materials, especially as nonabsorbable polymeric antioxidants for edible materials.
Inventors
- 👤 Ned M. Weinshenker
- 👤 James A. Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:15
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23L; A23L27/00; A23L27/70; A23L27/74; C; C07; C07C; C07C37/00; C07C37/11; C07C37/18; C07C39/00; C07C39/12; C07C39/15; C11; C11B; C11B5/00; C11B5/0021; C11B5/0035
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
80 words
An oxidizable composition stabilized against the oxidative edible degradation comprising an oxidizable material having admixed therewith a stabilizing amount in the range of from 2 ppm to 50,000 ppm by weight of the polymeric hydroquinone represented by the structural formula ##STR7## wherein R and R' are independently selected from the members of the group consisting of hydrogen and lower saturated alkyls of from 1 to 5 carbon atoms inclusive and n has a value of from 3 to 10,000 inclusive.
Claim 2
Dependent Claim
80 words
An oxidizable composition stabilized against the oxidative edible degradation comprising an oxidizable material having admixed therewith a stabilizing amount in the range of from 2 ppm to 50,000 ppm by weight of the polymeric hydroquinone represented by the structural formula ##STR7## wherein R and R' are independently selected from the members of the group consisting of hydrogen and lower saturated alkyls of from 1 to 5 carbon atoms inclusive and n has a value of from 3 to 10,000 inclusive.
Claim 3
Dependent Claim
34 words
The composition of claim 1, wherein R is hydrogen and R' is selected from the members of the group consisting of hydrogen and lower saturated alkyls of from 1 to 5 carbon atoms inclusive.
Claim 4
Dependent Claim
12 words
The composition of claim 2, wherein R' is a tertiary butyl group.
Claim 5
Dependent Claim
9 words
The composition of claim 2, wherein R' is hydrogen.
Claim 6
Dependent Claim
16 words
The composition of claim 2, wherein n has a value of from 4 to 4000 inclusive.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-17 | 1981-04-18 | 1981-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-17 | 1985-04-18 | 1985-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-17 | 1989-04-18 | 1989-10-18 | $7700.00 | Window Closed / Lapsed |