US4016041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making granular enzymes of reduced stickiness
Assignee: Lever Brothers Co
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Filing: 1976-01-22
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Granted: 1977-04-05
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Expires: 1996-01-22
Abstract
Abstract Enzyme-marumes are rendered less sticky and better sievable by dusting them with MgO or MgO/MgCO 3 as dusting powder.
Inventors
- 👤 Daniel Marten van Kampen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38672; B; B01; B01J; B01J2/00; B01J2/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
97 words
In a process for the preparation of enzyme-marumes with a reduced stickiness and an improved sievability, comprising forming an extrudate of a mixture of proteolytic or amylolytic enzymes and an organic or inorganic extrudable material, spheronizing the extrudate to form marumes while adding a dusting powder during the spheronizing operation, the improvement comprising adding magnesium oxide or a mixture of magnesium oxide with magnesium carbonate in a weight ratio of 10:1 as dusting powder, said powder having an average particle size ranging from 40 to 250 microns, in an amount of 0.1-5% by weight of the marumes.
Claim 2
Dependent Claim
97 words
In a process for the preparation of enzyme-marumes with a reduced stickiness and an improved sievability, comprising forming an extrudate of a mixture of proteolytic or amylolytic enzymes and an organic or inorganic extrudable material, spheronizing the extrudate to form marumes while adding a dusting powder during the spheronizing operation, the improvement comprising adding magnesium oxide or a mixture of magnesium oxide with magnesium carbonate in a weight ratio of 10:1 as dusting powder, said powder having an average particle size ranging from 40 to 250 microns, in an amount of 0.1-5% by weight of the marumes.
Claim 3
Dependent Claim
21 words
The process of claim 1, wherein the dusting powder is used in an amount of 1-3% by weight of the marumes.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |