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Patent US2687384A successfully refreshed from Google Patents.
US2687384A
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Water paint containing enzymedigested protein
Assignee: NAT DAIRY RES LAB Inc
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Filing: 1952-04-16
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Granted: 1954-08-24
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Expires: 1972-04-16
Abstract
No abstract record available.
Inventors
- 👤 Samuel M Weisberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:35
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/02; C09D5/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A WATER PAINT COMPRISING A SYNTHETIC LATEX AND AN ENZYME-DIGESTED PROTEIN STABILIZER SELECTED FROM THE GROUP CONSISTING OF ENZYME-DI GESTED MILK CASEIN AND SOYA PROTEIN AND PREPARED BY DISPERISING AN ISOLATE PROTEIN SELECTED FROM THE GROUP CONSISTING OF MILK CASEIN AND SOYA PROTEIN IN WATER TO FORM A DISPERSION WITH THE AID OF AN ALKALINE SUBSTANCE IN AN AMOUNT TO BRING THE PH TO WITHIN THE RANGE FROM ABOUT 6 TO ABOUT 8.5, ADDING A PROTEOLYTIC ENZYME WHICH IS ACTIVE AT A PH WITHIN THAT RANGE AND IS CAPABLE OF DIGESTING MILK CASEIN OF SOYA PROTEIN TO A STAGE HAVING CALCIUM ION COMPATIBILITY, AND ALLOWING THE ENZYME TO DIGEST THE PROTEIN UNTIL THERE IS PRODUCED A DIGESTED PROTEIN HAVING BIVALENT METAL ION COMPATIBILITY AS MEASURED BY THE CALCIUM SULFATE TEST, WHILE RETAINING GOOD BONDING AND EMULSIFYING POWER.
Claim 2
Dependent Claim
137 words
A WATER PAINT COMPRISING A SYNTHETIC LATEX AND AN ENZYME-DIGESTED PROTEIN STABILIZER SELECTED FROM THE GROUP CONSISTING OF ENZYME-DI GESTED MILK CASEIN AND SOYA PROTEIN AND PREPARED BY DISPERISING AN ISOLATE PROTEIN SELECTED FROM THE GROUP CONSISTING OF MILK CASEIN AND SOYA PROTEIN IN WATER TO FORM A DISPERSION WITH THE AID OF AN ALKALINE SUBSTANCE IN AN AMOUNT TO BRING THE PH TO WITHIN THE RANGE FROM ABOUT 6 TO ABOUT 8.5, ADDING A PROTEOLYTIC ENZYME WHICH IS ACTIVE AT A PH WITHIN THAT RANGE AND IS CAPABLE OF DIGESTING MILK CASEIN OF SOYA PROTEIN TO A STAGE HAVING CALCIUM ION COMPATIBILITY, AND ALLOWING THE ENZYME TO DIGEST THE PROTEIN UNTIL THERE IS PRODUCED A DIGESTED PROTEIN HAVING BIVALENT METAL ION COMPATIBILITY AS MEASURED BY THE CALCIUM SULFATE TEST, WHILE RETAINING GOOD BONDING AND EMULSIFYING POWER.
References Cited (Backward Citations)
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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) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |