Patent US3989852A successfully refreshed from Google Patents.
US3989852A
Expired / Lapsed
US
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Method for encapsulating materials
Assignee: Individual
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Filing: 1975-07-16
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Granted: 1976-11-02
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Expires: 1995-07-16
Abstract
Abstract A process for encapsulation is provided. Generally, the materials involved are those which tend to lose at least part of their original properties upon exposure to auto-oxidative, thermal, or humid conditions. The process comprises constituting the material to be encapsulated in or as a viscid medium and dispersing the medium as particulates into an atmosphere containing an agitated quantity of a powdered, sorbent, film-forming agent. The dispersed particulates must have a tacky surface. The powdered agent adheres to this tacky surface and absorbs sufficient liquid to gel the coated particulates and to form a continuous, substantially non-crackable and dry encapsulating film around each of the particulates.
Inventors
- 👤 Edwin Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:49
CPC Classifications
A; A23; A23F; A23F5/00; A23F5/46; A23F5/48; A23L; A23L27/00; A23L27/80; A23P; A23P10/00; A23P10/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
105 words
A process for encapsulating a material which tends to deteriorate upon exposure to autooxidative, humid or thermal conditions, which comprises: forming a viscid medium comprising said material and a liquid, dispersing said viscid medium as tacky particulates into an environment containing an agitated quantity of a dry, powdered, sorbent, film-forming agent such that said agent coats each of said particulates, absorbs liquid from the underlying particulate so as to constitute each of said particulates as a gel, and forms a continuous, self-drying encapsulating film around each of the gelled particulates whereby the original properties of the material are preserved, and recovering the encapsulated gelled particulates.
Claim 2
Dependent Claim
105 words
A process for encapsulating a material which tends to deteriorate upon exposure to autooxidative, humid or thermal conditions, which comprises: forming a viscid medium comprising said material and a liquid, dispersing said viscid medium as tacky particulates into an environment containing an agitated quantity of a dry, powdered, sorbent, film-forming agent such that said agent coats each of said particulates, absorbs liquid from the underlying particulate so as to constitute each of said particulates as a gel, and forms a continuous, self-drying encapsulating film around each of the gelled particulates whereby the original properties of the material are preserved, and recovering the encapsulated gelled particulates.
Claim 3
Dependent Claim
32 words
A process as defined in claim 1 wherein said viscid medium comprises a mixture of said material, a liquid and a filler in sufficient amounts to effect a cohesive and fluid consistency.
Claim 4
Dependent Claim
13 words
A process as defined in claim 1 wherein said medium is a suspension.
Claim 5
Dependent Claim
17 words
A process as defined in claim 1 wherein said medium is dispersed by spraying into a vessel.
Claim 6
Dependent Claim
15 words
A process as defined in claim 4 wherein said medium is maintained at room temperature.
Claim 7
Dependent Claim
15 words
A process as defined in claim 1 wherein said material comprises a volatile flavoring substance.
Claim 8
Dependent Claim
13 words
A process as defined in claim 1 wherein said recovered particulates are water-soluble.
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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |