US2876160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Starch matrix material containing imbedded material and process for preparing same
Assignee: Corn Products Refining Co
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Filing: 1954-07-26
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Granted: 1959-03-03
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Expires: 1974-07-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Schoch
- 👤 Charles C Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:46
CPC Classifications
A; A61; A61K; A61K47/00; A61K47/30; A61K47/36; A01; A01N; A01N25/00; A01N25/26; A23; A23P; A23P10/00; A23P10/40; A61K9/00; A61K9/14; A61K9/16; A61K9/1605; A61K9/1629; A61K9/1652; Y; Y10; Y10S; Y10S426/00; Y10S426/807; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2989
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
A PROCESS OF IMBEDDING A WATER-INSOLUBLE MATERIAL IN A PROTECTIVE STARCH MATRIX IN DRY, FREE-FLOWING FORM TO PROTECT SAID MATERIAL AGAINST CHEMICAL AND PHYSICAL CHANGES, WHICH COMPRISES EFFECTING A SUBSTANTIALLY COMPLETE SOLUTION OF A CHEMICALLY-MODIFIED STARCH, DISPERSING SAID MATERIAL IN SAID SOLUTION AND DRYING THE RESULTANT DISPERSION AND SUBDIVIDING THE DRIED PRODUCT; SAID CHEMICALLY MODIFIED STARCH HAVING THE FOLLOWING REQUIRED CHARACTERISTICS: (1) BEING SUBSTANTIALLY COMPLETELY SOLUBLE UPON COOKING IN WATER TO GIVE A SOLUTION IN WHICH SUBSTANTIALLY NO PORTION OF THE STARCH IS PRESENT AS SWOLLEN FRANULES AND FRAGMENTS THEREOF, (2) HAVING SUFFICIENT PROTECTIVE COLLOIDAL CAPACITY TO PREVENT ANY AGGREGATION, SEPARATION AND COALESCENCE OF THE DISPERSED WATER-INSOLUBLE MATERIAL (3) FORMING CLEAR AQUOUS SOLUTION SUBSTANTIALLY STABLE AGAINST RETROGRADATION, (4) BEING CAPABLE OF FORMING A COHERENT STABLE NON-GUMMY FILM ON BEING DRIED FROM AQUEROUS SOLUTION (5) HAVING BEEN SUITABLY MODIFIED TO YIELD AQUEOUS SOLUTIONS OF CONSIDERABLY LOWER VISCOSITY THAN PASTES PF UNTREATED STARCH; SAID MATERIAL BEING COMPATIBLE WITH THE AQUEOUS STARCH SYSTEM.
Claim 2
Dependent Claim
160 words
A PROCESS OF IMBEDDING A WATER-INSOLUBLE MATERIAL IN A PROTECTIVE STARCH MATRIX IN DRY, FREE-FLOWING FORM TO PROTECT SAID MATERIAL AGAINST CHEMICAL AND PHYSICAL CHANGES, WHICH COMPRISES EFFECTING A SUBSTANTIALLY COMPLETE SOLUTION OF A CHEMICALLY-MODIFIED STARCH, DISPERSING SAID MATERIAL IN SAID SOLUTION AND DRYING THE RESULTANT DISPERSION AND SUBDIVIDING THE DRIED PRODUCT; SAID CHEMICALLY MODIFIED STARCH HAVING THE FOLLOWING REQUIRED CHARACTERISTICS: (1) BEING SUBSTANTIALLY COMPLETELY SOLUBLE UPON COOKING IN WATER TO GIVE A SOLUTION IN WHICH SUBSTANTIALLY NO PORTION OF THE STARCH IS PRESENT AS SWOLLEN FRANULES AND FRAGMENTS THEREOF, (2) HAVING SUFFICIENT PROTECTIVE COLLOIDAL CAPACITY TO PREVENT ANY AGGREGATION, SEPARATION AND COALESCENCE OF THE DISPERSED WATER-INSOLUBLE MATERIAL (3) FORMING CLEAR AQUOUS SOLUTION SUBSTANTIALLY STABLE AGAINST RETROGRADATION, (4) BEING CAPABLE OF FORMING A COHERENT STABLE NON-GUMMY FILM ON BEING DRIED FROM AQUEROUS SOLUTION (5) HAVING BEEN SUITABLY MODIFIED TO YIELD AQUEOUS SOLUTIONS OF CONSIDERABLY LOWER VISCOSITY THAN PASTES PF UNTREATED STARCH; SAID MATERIAL BEING COMPATIBLE WITH THE AQUEOUS STARCH SYSTEM.
Claim 3
Dependent Claim
142 words
A COMPOSITION OF MATTER STABLE TO PHYSICAL AND CHEMICAL CHANGES AND IN DRY, FREE-FLOWABLE FORM COMPRISING A CONTINUOUS STARCH MATRIX AND A SENSITIVE MATERIAL WHICH IS DISPERSED AND IMBEDDED AND PROTECTED THEREIN, SAID STARCH MATRIX CONSISTING OF A CHEMICALLY MODIFIED STARCH HAVING THE FOLLOWING CHARATERISTICS: (1) BEING SUBSTANTIALLY COMPLETELY SOLUBLE UPON COOKING WATER TO GIVE A SOLUTION IN WHICH SUBSTANTIALLY NO PORTION OF THE STARCH IS PRESENT AS SWOLLEN GRANULES AND FRAGMENTS THEREOF, (2) HAVING SUFFICIENT PROTECTIVE COLLOIDAL CAPACITY TO PREVENT ANY AGGREGATION, SEPARATION AND COALESCENCE OF THE DISPERSED WATER-SOLUBLE MATERIAL, (3) FORMING CLEAR AQUEOUS SOLUTIONS SUBSTANTIALLY STABLE AGAINST RETROGRADATION, (4) BEING CAPABLE OF FORMING A COHERENT STABLE NONGUMMY FILM ON BEING DRIED FROM AQUEOUS SOLUTION,(5) HAVING BEEN SUITABLY MODIFIED TO YIELD AQUEOUS SOLUTIONS OF CONSIDERABLY LOWER VISCOSITY THAN PASTES OF UNTREATED STARCH; SAID MATERIAL BEING COMPATIBLE WITH THE AQUEOUS STARCH SYSTEM.
Claim 4
Dependent Claim
142 words
A COMPOSITION OF MATTER STABLE TO PHYSICAL AND CHEMICAL CHANGES AND IN DRY, FREE-FLOWABLE FORM COMPRISING A CONTINUOUS STARCH MATRIX AND A SENSITIVE MATERIAL WHICH IS DISPERSED AND IMBEDDED AND PROTECTED THEREIN, SAID STARCH MATRIX CONSISTING OF A CHEMICALLY MODIFIED STARCH HAVING THE FOLLOWING CHARATERISTICS: (1) BEING SUBSTANTIALLY COMPLETELY SOLUBLE UPON COOKING WATER TO GIVE A SOLUTION IN WHICH SUBSTANTIALLY NO PORTION OF THE STARCH IS PRESENT AS SWOLLEN GRANULES AND FRAGMENTS THEREOF, (2) HAVING SUFFICIENT PROTECTIVE COLLOIDAL CAPACITY TO PREVENT ANY AGGREGATION, SEPARATION AND COALESCENCE OF THE DISPERSED WATER-SOLUBLE MATERIAL, (3) FORMING CLEAR AQUEOUS SOLUTIONS SUBSTANTIALLY STABLE AGAINST RETROGRADATION, (4) BEING CAPABLE OF FORMING A COHERENT STABLE NONGUMMY FILM ON BEING DRIED FROM AQUEOUS SOLUTION,(5) HAVING BEEN SUITABLY MODIFIED TO YIELD AQUEOUS SOLUTIONS OF CONSIDERABLY LOWER VISCOSITY THAN PASTES OF UNTREATED STARCH; SAID MATERIAL BEING COMPATIBLE WITH THE AQUEOUS STARCH SYSTEM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |