US4096327A
Expired / Lapsed
US
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Modified kappa-carrageenan
Assignee: FMC Corp
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Filing: 1977-01-05
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Granted: 1978-06-20
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Expires: 1997-01-05
Abstract
Abstract Modified kappa-carrageenan containing hydroxyalkyl groups each having two to three carbon atoms, the degree of substitution of such groups above the corresponding unsubstituted kappa-carrageenan being from 0.1 to 2.0 meq. per gram, forms aqueous gels exhibiting decreased syneresis and melting point and increased compliancy as compared with the corresponding unmodified kappa-carrageenan. The modified kappa-carrageenan is useful in food products as well as in latex paint.
Inventors
- 👤 Kenneth B. Guiseley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:10
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/0006; C08B37/0036; C08B37/0042; A; A23; A23L; A23L29/00; A23L29/20; A23L29/206; A23L29/256; C09; C09D; C09D7/00; C09D7/40; C09D7/43; C08L; C08L5/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
31 words
Kappa-carrageenan containing hydroxyalkyl groups each having 2 to 3 carbon atoms, the degree of substitution of such groups above the corresponding unmodified kappa-carrageenan being from 0.1 to 2.0 gram-milliequivalent per gram.
Claim 2
Dependent Claim
31 words
Kappa-carrageenan containing hydroxyalkyl groups each having 2 to 3 carbon atoms, the degree of substitution of such groups above the corresponding unmodified kappa-carrageenan being from 0.1 to 2.0 gram-milliequivalent per gram.
Claim 3
Dependent Claim
12 words
Kappa-carrageenan as claimed in claim 1 in which said hydroxyalkyl is hydroxyethyl.
Claim 4
Dependent Claim
12 words
Kappa-carrageenan as claimed in claim 1 in which said hydroxyalkyl is hydroxypropyl.
Claim 5
Dependent Claim
20 words
Kappa-carrageenan as claimed in claim 1 in which the degree of substitution is from 0.2 to 0.5 gram-milli-equivalent per gram.
Claim 6
Dependent Claim
20 words
Kappa-carrageenan as claimed in claim 2 in which the degree of substitution is from 0.2 to 0.5 gram-milli-equivalent per gram.
Claim 7
Dependent Claim
20 words
Kappa-carrageenan as claimed in claim 3 in which the degree of substitution is from 0.2 to 0.5 gram-milli-equivalent per gram.
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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |