US4007052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of adjuvant-free fructose tablets
Assignee: Roche Diagnostics GmbH
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Filing: 1975-08-01
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Granted: 1977-02-08
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Expires: 1995-08-01
Abstract
Abstract The method of preparing adjuvant-free tablets from a tableting mass having a tendency to stick, comprising alternately in the same mold forming tablets from said tableting mass and from an adjuvant mass containing an easily tableted substance, a lubricant and a mold parting agent. The lubricant may be talc or sodium benzoate present in about 5 to 20% by weight, and the mold release agent may be stearic acid, a stearate, paraffin or a silicone oil in about 0.5 to 10% by weight. By this method tablets of pure fructose can be formed.
Inventors
- 👤 Helmut Heinemann
- 👤 Werner Rothe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:07
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/0005; B30B15/0011; A; A61; A61K; A61K9/00; A61K9/20; A61K9/2095
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
44 words
The method of preparing adjuvant-free tablets from a tableting mass having a tendency to stick, comprising alternately in the same mold forming tablets from said tableting mass and from an adjuvant mass containing an easily tableted substance, a lubricant and a mold parting agent.
Claim 2
Independent Claim
44 words
The method of preparing adjuvant-free tablets from a tableting mass having a tendency to stick, comprising alternately in the same mold forming tablets from said tableting mass and from an adjuvant mass containing an easily tableted substance, a lubricant and a mold parting agent.
Claim 3
Dependent Claim
19 words
The method of claim 1, wherein the lubricant comprises about 5 to 20% by weight of said adjuvant mass.
Claim 4
Dependent Claim
20 words
The method of claim 1, wherein the parting agent comprises about 0.5 to 10% by weight of said adjuvant mass.
Claim 5
Dependent Claim
13 words
The method of claim 1, wherein the tableting mass comprises substantially pure fructose.
Claim 6
Dependent Claim
41 words
The method of claim 4, wherein the tableting mass comprises by weight about 70 to 90% of fructose of a particle size larger than about 0.2 mm and about 10 to 30% of a particle size smaller than about 0.2 mm.
Claim 7
Dependent Claim
27 words
The method of claim 1, wherein said adjuvant by weight contains about 8 to 10% of said lubricant and about 1 to 4% of said parting agent.
Claim 8
Dependent Claim
18 words
The method of claim 6, wherein the process is performed on a rotary press having paired filling stations.
Claim 9
Dependent Claim
20 words
The method of claim 6, wherein the parting agent comprises about 0.5 to 10% by weight of said adjuvant mass.
Claim 10
Dependent Claim
60 words
The method of claim 8, wherein the process is performed on a rotary press having paired filling stations, and the easily tableted substance comprises at least one member selected from the group consisting of sodium chloride, potassium chloride, lactose, calcium phosphate, cellulose and starch, and the tablets from said adjuvant mass are crushed and recycled for production of further tablets.
Claim 11
Dependent Claim
41 words
A mass of uniform tablets of substantially pure fructose each comprises buy weight of about 100 parts by weight of particles larger than about 0.2 mm and about 10 to 30 parts by weight of particles smaller than about 0.2 mm.
Claim 12
Dependent Claim
41 words
A mass of uniform tablets of substantially pure fructose each comprises buy weight of about 100 parts by weight of particles larger than about 0.2 mm and about 10 to 30 parts by weight of particles smaller than about 0.2 mm.
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) | 1980-02-08 | 1980-08-09 | 1981-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-08 | 1984-08-09 | 1985-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-08 | 1988-08-09 | 1989-02-08 | $7700.00 | Window Closed / Lapsed |