US3607396A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating granular starch materials
Assignee: Unilever Bestfoods North America
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Filing: 1968-07-16
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Granted: 1971-09-21
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Expires: 1988-07-16
Abstract
Abstract Process for subjecting granular starch material, on a continuous basis, to the combined action of a solvent for the starch material and liquid that is not a solvent for the starch material, under controlled conditions, including direct heating, so as to produce controlled amounts of desired change in the granular starch material. Exemplary applications are for the continuous production of granular preswollen starch, and texturized starch.
Inventors
- 👤 Felix Joseph Germino
- 👤 Deursen Van Harms
- 👤 Edwin Hans Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:41
CPC Classifications
C; C08; C08B; C08B30/00; C08B30/12; C08B30/14
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
73 words
A process for the preparation of a granular preswollen starch or a texturized starch wherein a slurry of starch material in a liquid medium which comprises from about 10 percent to about 30 percent of a solvent for the starch material and at least about 70 percent methanol is directly heated with steam to a temperature of from about 195* F. to about 330* F. and the heated slurry is subsequently, rapidly cooled.
Claim 2
Dependent Claim
16 words
A process as defined by claim 2 wherein said liquid medium comprises about 80 percent methanol.
Claim 3
Dependent Claim
118 words
A process for the preparation of a granular preswollen starch or a texturized starch wherein a slurry of starch material in a liquid medium comprising from about 10 percent to about 55 percent of a solvent for the starch material and from about 45 percent to about 90 percent of an organic liquid that is not a solvent for the starch material but that is miscible with said solvent selected from the group consisting of lower alcohols, acetone, methyl ethyl ketone and dioxane is directly heated with steam to a temperature of from about 195* F. to about 330* F. and the heated slurry is subsequently, rapidly cooled by discharging said heated slurry into a pool of methanol.
Claim 4
Dependent Claim
86 words
A process of preparing a granular preswollen starch comprising preparing a slurry consisting of 35 wt. percent, on a dry basis, of corn starch, 13 wt. percent water, and 52 wt. percent methanol. continuously supplying a stream of said slurry to a direct heater; continuously, intimately, directly contacting said slurry in said heater with steam, to maintain said heater at a temperature of about 265* F, continuously discharging from said heater a stream of heated slurry into dilution Methanol, and recovering a granular preswollen starch product.
Claim 5
Dependent Claim
114 words
A continuous process for the production of a granular preswollen starch or a texturized starch wherein a slurry of starch material in a liquid medium comprising from about 10 percent to about 30 percent of a solvent for the starch material and from about 70 percent to about 90 percent of an organic liquid that is not a solvent for the starch material but that is miscible with said solvent selected from the group consisting of lower alcohols, acetone, methyl ethyl ketone and dioxane is directly heated with the vapor of said organic liquid to a temperature of from about 195* F. to about 330* F. and the heated slurry is subsequently, rapidly cooled.
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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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |