US2729628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acylated proteins
Assignee: Individual
•
Filing: 1952-10-31
•
Granted: 1956-01-03
•
Expires: 1972-10-31
Abstract
No abstract record available.
Inventors
- 👤 Godfrey E Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:15
CPC Classifications
D; D01; D01F; D01F4/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
A PROCESS OF AT LEAST DOUBLING THE INTRINSIC VISCOSITY OF A NATURAL PROTEIN SELECTED FROM THE GROUP CONSISTING OF PEANUT PROTEIN, SOYBEAN PROTEIN, CASEIN, EGG ALBUMIN, AND BLOOD ALUBUMIN, COMPRISING PEPTIZING THE NATURAL PROTEIN IN A BASIC AQUEOUS MEDIUM TO FORM AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 0.1 TO 0.2 PART BY WEIGHT OF PROTEIN, REACTING THE PEPTIZED PROTEIN WITH FROM ABOUT 0.04 TO 0.12 PART BY WEIGHT BASED ON THE WEIGHT OF PROTEIN OF TEREPHTHALYL DICHLORIDE BY MIXING THE PEPTIZED PROTEIN WITH A SOLUTION OF THE TEREPHTHALYL DICHLORIDE IN ENOUGH DIETHYL ETHER SO THAT THE ETHER SOLUTION CONSTITUTES FROM ABOUT 29 TO 39% OF THE RESULTING MIXTURE, WHILE MAINTAINING THE REACTION TEMPERATURE BETWEEN ABOUT 0 TO 5* C. AND MAINTAINING THE PH OF THE REACTION UNTIL THE INLEAST ABOVE 7, AND CONTINUING THE REACTION UNTIL THE INTRINSIC VISCOSITY OF THE RESULTING MODIFIED PROTEIN IS AT LEAST TWICE THAT OF THE NATURAL PROTEIN.
Claim 2
Dependent Claim
153 words
A PROCESS OF AT LEAST DOUBLING THE INTRINSIC VISCOSITY OF A NATURAL PROTEIN SELECTED FROM THE GROUP CONSISTING OF PEANUT PROTEIN, SOYBEAN PROTEIN, CASEIN, EGG ALBUMIN, AND BLOOD ALUBUMIN, COMPRISING PEPTIZING THE NATURAL PROTEIN IN A BASIC AQUEOUS MEDIUM TO FORM AN AQUEOUS SOLUTION CONTAINING FROM ABOUT 0.1 TO 0.2 PART BY WEIGHT OF PROTEIN, REACTING THE PEPTIZED PROTEIN WITH FROM ABOUT 0.04 TO 0.12 PART BY WEIGHT BASED ON THE WEIGHT OF PROTEIN OF TEREPHTHALYL DICHLORIDE BY MIXING THE PEPTIZED PROTEIN WITH A SOLUTION OF THE TEREPHTHALYL DICHLORIDE IN ENOUGH DIETHYL ETHER SO THAT THE ETHER SOLUTION CONSTITUTES FROM ABOUT 29 TO 39% OF THE RESULTING MIXTURE, WHILE MAINTAINING THE REACTION TEMPERATURE BETWEEN ABOUT 0 TO 5* C. AND MAINTAINING THE PH OF THE REACTION UNTIL THE INLEAST ABOVE 7, AND CONTINUING THE REACTION UNTIL THE INTRINSIC VISCOSITY OF THE RESULTING MODIFIED PROTEIN IS AT LEAST TWICE THAT OF THE NATURAL PROTEIN.
References Cited (Backward Citations)
US2525792A
Cited
GB649548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |