Patent US2676172A successfully refreshed from Google Patents.
US2676172A
Expired / Lapsed
US
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Allyl dextrins
Assignee: General Mills Inc
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Filing: 1950-08-04
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Granted: 1954-04-20
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Expires: 1970-08-04
Abstract
No abstract record available.
Inventors
- 👤 Roach John Robert
- 👤 Nordgren Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:53
CPC Classifications
C; C08; C08B; C08B31/00; C08B31/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
PROCESS OF PREPARING ALLYL DEXTRINS CONTAINING FROM 1.6 TO 1.85 ALLYL GROUPS PER GLUCOSE UNIT WHICH COMPRISES REACTING DEXTRINS WHICH ARE FROM 75% TO 100% SOLUBLE IN WATER AND WHICH FORM 20% AQUEOUS SOLUTIONS BY WEIGHT HAVING A VISCOSITY WITHIN THE RANGE OF 3 TO 20 CENTISTOKES AT 25* C., WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL HYDROXIDE CONTAINING FROM 50% TO 75% ALKALI METAL HYDROXIDE BY WEIGHT, IN THE PRESENCE OF FROM 1.0 TO 1.5 MOLES OF ALLYL CHLORIDE PER HYDROXYL EQUIVALENT OF THE DEXTRIN, AT TEMPERATURES OF FROM 85-110* C. FOR A TIME PERIOD OF FROM 3 TO 5 HOURS.
Claim 2
Dependent Claim
103 words
PROCESS OF PREPARING ALLYL DEXTRINS CONTAINING FROM 1.6 TO 1.85 ALLYL GROUPS PER GLUCOSE UNIT WHICH COMPRISES REACTING DEXTRINS WHICH ARE FROM 75% TO 100% SOLUBLE IN WATER AND WHICH FORM 20% AQUEOUS SOLUTIONS BY WEIGHT HAVING A VISCOSITY WITHIN THE RANGE OF 3 TO 20 CENTISTOKES AT 25* C., WITH AN AQUEOUS SOLUTION OF AN ALKALI METAL HYDROXIDE CONTAINING FROM 50% TO 75% ALKALI METAL HYDROXIDE BY WEIGHT, IN THE PRESENCE OF FROM 1.0 TO 1.5 MOLES OF ALLYL CHLORIDE PER HYDROXYL EQUIVALENT OF THE DEXTRIN, AT TEMPERATURES OF FROM 85-110* C. FOR A TIME PERIOD OF FROM 3 TO 5 HOURS.
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) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |