US3903295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for encapsulating materials
Assignee: Individual
•
Filing: 1974-04-16
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Granted: 1975-09-02
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Expires: 1994-04-16
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, filmforming agent. The dispersed particulates must have a tacky surface. The powdered agent adheres to this tacky surface and sorbs sufficient liquid to form a continuous, substantially nonfriable and dry encapsulating film around each of the particulates.
Inventors
- 👤 Edwin Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:47
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: 9
Claim 1
Independent Claim
84 words
A PROCESS FOR ENCAPSULATING A MATERIAL WHICH TENDS TO DETERIORATE UPON EXPOSURE TO AUTO-OXIDATIVE, HUMID OR THERMAL CONDITION WHICH COMPRISES FORMING SAID MATERIAL IN OR AS A VISCID OR GEL-LIKE MEDIUM. DISPERSING SAID MEDIUM AS PARTICULATES HAVING A TACKY CONSISTENCY IN AN ENVIRONMENT CONTAINING AN AGITATED QUANTITY OF A POWDERED, SORBENT, FILM-FORMING GENT SELECTED FROM THE GROUP CONSISTING OF GUMS, CARBOXYMETHYL CELLULOSE AND ETHYL CELLULOSE SO AS TO FORM AN ENCAPSULATING, SUBSTANTIALLY NON-FRIABLE FILM AROUND EACH OF SAID PARTICULATES, AND RECOVERING SAID ENCAPSULATED PARTICULATES.
Claim 2
Dependent Claim
84 words
A PROCESS FOR ENCAPSULATING A MATERIAL WHICH TENDS TO DETERIORATE UPON EXPOSURE TO AUTO-OXIDATIVE, HUMID OR THERMAL CONDITION WHICH COMPRISES FORMING SAID MATERIAL IN OR AS A VISCID OR GEL-LIKE MEDIUM. DISPERSING SAID MEDIUM AS PARTICULATES HAVING A TACKY CONSISTENCY IN AN ENVIRONMENT CONTAINING AN AGITATED QUANTITY OF A POWDERED, SORBENT, FILM-FORMING GENT SELECTED FROM THE GROUP CONSISTING OF GUMS, CARBOXYMETHYL CELLULOSE AND ETHYL CELLULOSE SO AS TO FORM AN ENCAPSULATING, SUBSTANTIALLY NON-FRIABLE FILM AROUND EACH OF SAID PARTICULATES, AND RECOVERING SAID ENCAPSULATED PARTICULATES.
Claim 3
Dependent Claim
13 words
A process as defined in claim 1 wherein said medium is an emulsion.
Claim 4
Dependent Claim
17 words
A process as defined in claim 2 wherein said medium is dispersed by spraying into a vessel.
Claim 5
Dependent Claim
15 words
A process as defined in claim 3 wherein said medium is maintained at room temperature.
Claim 6
Dependent Claim
101 words
A process for encapsulating a material which tends to deteriorate upon exposure to auto-oxidative, humid or thermal conditions which comprises forming a viscid or gel-like suspension of said material, dispersing said suspension as tacky particulates into an environment containing an agitated quantity of a dry, powdered, sorbent, film-forming agent selected from the group consisting of gums, carboxymethyl cellulose and ethyl cellulose, whereby said agent adheres to the surface of said particulates and sorbs a sufficient amount of liquid from said particulates to form a continuous, substantially non-friable and dry, encapsulating film around each of said particulates, and recovering said encapsulated particulates.
Claim 7
Dependent Claim
101 words
A process for encapsulating a material which tends to deteriorate upon exposure to auto-oxidative, humid or thermal conditions which comprises forming a viscid or gel-like suspension of said material, dispersing said suspension as tacky particulates into an environment containing an agitated quantity of a dry, powdered, sorbent, film-forming agent selected from the group consisting of gums, carboxymethyl cellulose and ethyl cellulose, whereby said agent adheres to the surface of said particulates and sorbs a sufficient amount of liquid from said particulates to form a continuous, substantially non-friable and dry, encapsulating film around each of said particulates, and recovering said encapsulated particulates.
Claim 8
Dependent Claim
15 words
A process as defined in claim 5 wherein said material comprises a volatile flavoring substance.
Claim 9
Dependent Claim
13 words
A process as defined in claim 5 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) | 1978-09-01 | 1979-03-03 | 1979-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-01 | 1983-03-03 | 1983-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-01 | 1987-03-03 | 1987-09-02 | $7700.00 | Window Closed / Lapsed |