US3323929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low viscosity casein
Assignee: Hexion Inc
•
Filing: 1965-04-08
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Granted: 1967-06-06
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Expires: 1985-04-08
Abstract
No abstract record available.
Inventors
- 👤 Harold K Salzberg
- 👤 Milton R Simonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:28
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/50; C; C09; C09D; C09D189/00; C09D189/005; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31931
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A COATING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF CASEIN OF LOW VISCOSITY RESULTING FROM THE PROCESS OF (A) MIXING A PROTEASE THAT IS ACTIVE IN ALKALINE MEDIUM INTO MILK CONTAINING CASEING IN NATURAL MICELLAR CONDITION, (B) ADMIXING A WATER SOLUBLE ALKALI IN AMOUNT TO MAKE THE MILK PROTEASE COMPOSITION ALKALINE, (C) MAINTAINING THE RESULTING MIXTURE AT A TEMPERATURE APPROXIMATELY WITHIN THE RANGE 90*-120*F. UNTIL THE VISCOSITY OF THE CASEIN IS LOWERED BY AT LEAST ABOUT A THIRD, (D) DISCONTINUING THE TREATMENT BEFORE THE CASEIN BECOMES NONPRECCIPITATABLE AT THE ISOELECTRIC POINT FOR CASEIN, (E) THEN ADMIXING A CURDING ACID IN AMOUNT TO ESTABLISH THE PH AT APPROXIMATELY THE SAID ISOELECTRIC POINT, AND (F) SEPARATING THE CASEIN FROM THE WHEY THAT REMAINS; AND ADMIXED FINELY DIVIDED PIGMENTARY MATERIAL.
Claim 2
Dependent Claim
126 words
A COATING COMPOSITION COMPRISING AN AQUEOUS SOLUTION OF CASEIN OF LOW VISCOSITY RESULTING FROM THE PROCESS OF (A) MIXING A PROTEASE THAT IS ACTIVE IN ALKALINE MEDIUM INTO MILK CONTAINING CASEING IN NATURAL MICELLAR CONDITION, (B) ADMIXING A WATER SOLUBLE ALKALI IN AMOUNT TO MAKE THE MILK PROTEASE COMPOSITION ALKALINE, (C) MAINTAINING THE RESULTING MIXTURE AT A TEMPERATURE APPROXIMATELY WITHIN THE RANGE 90*-120*F. UNTIL THE VISCOSITY OF THE CASEIN IS LOWERED BY AT LEAST ABOUT A THIRD, (D) DISCONTINUING THE TREATMENT BEFORE THE CASEIN BECOMES NONPRECCIPITATABLE AT THE ISOELECTRIC POINT FOR CASEIN, (E) THEN ADMIXING A CURDING ACID IN AMOUNT TO ESTABLISH THE PH AT APPROXIMATELY THE SAID ISOELECTRIC POINT, AND (F) SEPARATING THE CASEIN FROM THE WHEY THAT REMAINS; AND ADMIXED FINELY DIVIDED PIGMENTARY MATERIAL.
References Cited (Backward Citations)
US2582353A
Cited
US3186918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |