US3914430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free-flowing, high density, agglomerated vitamin E powder compositions
Assignee: F Hoffmann La Roche AG
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Filing: 1974-06-26
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Granted: 1975-10-21
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Expires: 1994-06-26
Abstract
Abstract A novel spray-drying technique process, and the resulting composition, for preparing a high density, agglomerated vitamincontaining composition having improved tableting characteristics.
Inventors
- 👤 Marco Alfred Cannalonga
- 👤 Louis Vincent Czarecki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:16
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/14; A61K9/141; A61K9/148; A61K9/143; A61K9/48; A61K9/50; A61K9/5005; A61K9/5021; A61K9/5052; A61K9/5057; B; B01; B01D; B01D1/00; B01D1/16; B01D1/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
126 words
A SPRAY-DRIED FREE-FLOWING VITAMIN E ACTIVE POWER COMPOSITION FOR USE IN DIRECT COMPRESSION TABLETTING TECHNIQUES COMPRISING, IN PERCENTS BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, FROM ABOUT 45% TO ABOUT 60% OF DL-ATOCOPHERYL ACETATE, FROM ABOUT 38% TO ABOUT 53% OF A HYDROLYZED GETALIN HAVING AN O BLOOM AND A MOLECULAR WEIGHT OF ABOUT 9,000 TO 11,000, ABOUT 0.1% OF SODIUM BENZOATE, ABOUT 0.2% OF SORBIC ACID AND FROM ABOUT 1% TO ABOUT 3% OF SILICIC ACID, SAID POWDER COMPOSITION IN THE FORM OF AGGLOMERATED PARTICLES HAVING A BULK DENSITY RANGE OF FROM 25 TO 32 POUNDS PER CUBIC FOOT AND A PARTICL SIZE RANGE WHEREIN FROM 75% TO 100% OF THE PARTICLES ARE THE RANGE OF FROM 74 MICRONS TO 287 MICRONS.
Claim 2
Dependent Claim
126 words
A SPRAY-DRIED FREE-FLOWING VITAMIN E ACTIVE POWER COMPOSITION FOR USE IN DIRECT COMPRESSION TABLETTING TECHNIQUES COMPRISING, IN PERCENTS BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, FROM ABOUT 45% TO ABOUT 60% OF DL-ATOCOPHERYL ACETATE, FROM ABOUT 38% TO ABOUT 53% OF A HYDROLYZED GETALIN HAVING AN O BLOOM AND A MOLECULAR WEIGHT OF ABOUT 9,000 TO 11,000, ABOUT 0.1% OF SODIUM BENZOATE, ABOUT 0.2% OF SORBIC ACID AND FROM ABOUT 1% TO ABOUT 3% OF SILICIC ACID, SAID POWDER COMPOSITION IN THE FORM OF AGGLOMERATED PARTICLES HAVING A BULK DENSITY RANGE OF FROM 25 TO 32 POUNDS PER CUBIC FOOT AND A PARTICL SIZE RANGE WHEREIN FROM 75% TO 100% OF THE PARTICLES ARE THE RANGE OF FROM 74 MICRONS TO 287 MICRONS.
Claim 3
Dependent Claim
235 words
A spray-dried free-flowing vitamin E active powder composition for use in direct compression tableting techniques, comprising, in percents by weight based on the total weight of the composition, for about 45% to about 60% of dl- Alpha -tocopheryl acetate, from about 38% to about 53% of a hydrolyzed gelatin having O Bloom and a molecular weight of abOut 9,000 to 11,000, about 0.1% of sodium benzoate, about 0.2% of sorbic acid and from about 1% to about 2% of an absorbent comprising from about 4% to about 12% of a calcium silicate having a particle size of 3.4 microns, an oil absorption capacity of 100-300 pounds per 100 pounds and a surface area of 175 square meters per gram and from about 96% to about 88% of a fine particle-sized spray-dried vitamin E composition comprising, in percents by weight based on the weight of the spray-dried composition, from about 15% to about 20% of dl- Alpha -tocopheryl acetate, from about 80% to about 85% of hydrolyzed gelatin of O Bloom and a molecular weight of 9,000 to 11,000 about 1% of sodium benzoate and about 0.7% of sorbic acid, said powder composition in the form of agglomerated particles having a bulk density range from 25 to 32 pounds per cubic foot and a particle size range wherein from 75% to 100% of the particles are in the range of from 74 microns to 287 microns.
Claim 4
Dependent Claim
235 words
A spray-dried free-flowing vitamin E active powder composition for use in direct compression tableting techniques, comprising, in percents by weight based on the total weight of the composition, for about 45% to about 60% of dl- Alpha -tocopheryl acetate, from about 38% to about 53% of a hydrolyzed gelatin having O Bloom and a molecular weight of abOut 9,000 to 11,000, about 0.1% of sodium benzoate, about 0.2% of sorbic acid and from about 1% to about 2% of an absorbent comprising from about 4% to about 12% of a calcium silicate having a particle size of 3.4 microns, an oil absorption capacity of 100-300 pounds per 100 pounds and a surface area of 175 square meters per gram and from about 96% to about 88% of a fine particle-sized spray-dried vitamin E composition comprising, in percents by weight based on the weight of the spray-dried composition, from about 15% to about 20% of dl- Alpha -tocopheryl acetate, from about 80% to about 85% of hydrolyzed gelatin of O Bloom and a molecular weight of 9,000 to 11,000 about 1% of sodium benzoate and about 0.7% of sorbic acid, said powder composition in the form of agglomerated particles having a bulk density range from 25 to 32 pounds per cubic foot and a particle size range wherein from 75% to 100% of the particles are in the range of from 74 microns to 287 microns.
References Cited (Backward Citations)
US3137630A
Cited
US3608083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |