US3329523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating flexible sheet with amylose
Assignee: Primary Products Ingredients Americas LLC
•
Filing: 1964-06-29
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Granted: 1967-07-04
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Roland W Best
- 👤 Robert M Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
D; D21; D21H; D21H23/00; D21H23/02; D21H23/22; D21H23/52; D21H23/56; D21H5/00; D21H5/0005; D21H5/0025; D21H5/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
THE PROCESS OF FORMING A SMOOTH, GREASE-RESISTANT COATED FLEXIBLE SHEET WHICH COMPRISES THE STEPS OF (1) PROVIDING AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF AN AMYLOSIC MATERIAL CONTAINING AT LEAST 50% BY WEIGHT AMYLOSE, WHEREIN SAID AMYLOSIC MATERIAL IS PRESENT IN A CONCENTRATION OF FROM 1 TO 20% BY WEIGHT OF SAID AQUEOUS SOLUTION AND IS SELECTED FROM THE GROUP CONSISTING OF THE SEPARATED AMYLOSE FRACTION OF WHOLE STARCH, WHOLE STARCH CONTAINING AT LEAST 50% BY WEIGHT AMYLOSE AND MIXTURES THEREOF, (2) APPLYING SAID AQUEOUS SOLUTION OF AMYLOSIC MATERIAL TO A SURFACE WHICH IS NOT WATER ABSORPTIVE, (3) WHILE SAID AMYLOSIC MATERIAL IS IN AN UNGELLED STATE TRANSFERRING THE COATING COMPOSITION FROM SAID SURFACE TO A FLEXIBLE SHEET, WHILE SAID FLEXIBLE SHEET IS MOVING AT A RATE OF ABOUT 50 TO 2,500 FEET PER MINUTE, (4) IMMEDIATELY SMOOTHING SAID COATING BEFORE THE OVERLYING AMYLOSIC COATING COMPOSITION GELS, AND (5) DRYING SAID FLEXIBLE SHEET.
Claim 2
Dependent Claim
152 words
THE PROCESS OF FORMING A SMOOTH, GREASE-RESISTANT COATED FLEXIBLE SHEET WHICH COMPRISES THE STEPS OF (1) PROVIDING AN AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF AN AMYLOSIC MATERIAL CONTAINING AT LEAST 50% BY WEIGHT AMYLOSE, WHEREIN SAID AMYLOSIC MATERIAL IS PRESENT IN A CONCENTRATION OF FROM 1 TO 20% BY WEIGHT OF SAID AQUEOUS SOLUTION AND IS SELECTED FROM THE GROUP CONSISTING OF THE SEPARATED AMYLOSE FRACTION OF WHOLE STARCH, WHOLE STARCH CONTAINING AT LEAST 50% BY WEIGHT AMYLOSE AND MIXTURES THEREOF, (2) APPLYING SAID AQUEOUS SOLUTION OF AMYLOSIC MATERIAL TO A SURFACE WHICH IS NOT WATER ABSORPTIVE, (3) WHILE SAID AMYLOSIC MATERIAL IS IN AN UNGELLED STATE TRANSFERRING THE COATING COMPOSITION FROM SAID SURFACE TO A FLEXIBLE SHEET, WHILE SAID FLEXIBLE SHEET IS MOVING AT A RATE OF ABOUT 50 TO 2,500 FEET PER MINUTE, (4) IMMEDIATELY SMOOTHING SAID COATING BEFORE THE OVERLYING AMYLOSIC COATING COMPOSITION GELS, AND (5) DRYING SAID FLEXIBLE SHEET.
References Cited (Backward Citations)
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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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |