US2515145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the incorporation of hydrophilic material into organic media
Assignee: Shell Development Co
•
Filing: 1947-10-09
•
Granted: 1950-07-11
•
Expires: 1967-10-09
Abstract
No abstract record available.
Inventors
- 👤 Willem Johannes Dominicu Dijck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:09
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/003; C01; C01P; C01P2004/00; C01P2004/51; C01P2006/00; C01P2006/60; C01P2006/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A PROCESS FOR THE INCORPORATION OF PRUSSIAN BLUE INTO STAND OIL, WHICH COMPRISES TREATING AN AQUEOUS SUSPENSION OF THE SAID PRUSSIAN BLUE WITH ISOBUTYL ALCOHOL IN SUCH A QUANTITY THAT THE RATIO BY WEIGHT OF ISOBUTYL ALCOHOL TO WATER IN THE PIGMENT SUSPENSION IS ABOUT 3:1, SUBJECTING THE RESULTING MIXTURE TO DISTILLATION TO REMOVE OVERHEAD THE WATER AND ISOBUTYL ALCOHOL, ADDING TO THE DISTILLATION MIXTURE DURING THE COURSE OF THE DISTILLATION A SUFFICIENT QUANTITY OF STAND-OIL TO MAINTAIN THE SAID DISTILLATION MIXTURE AT SUBSTANTIALLY ITS ORIGINAL VOLUME, CONTINUING THE DISTILLATION UNTIL SUBSTANTIALLY ALL OF THE WATER AND SUBSTANTIALLY ALL OF THE ISOBUTYL ALCOHOL HAS BEEN REMOVED OVERHEAD AND THEN RECOVERING THE DESIRED PRUSSION BLUE STAND OIL MIXTURE FROM THE DISTILLATION RESIDUE, THE PROPORTIONS OF ISOBUTYL ALCOHOL, STAND OIL AND WATER IN THE DISTILLATION MIXTURE BEING CONTROLLED SO AS TO MAINTAIN A SINGLE LIQUID PHASE IN THAT MIXTURE THROUGHOUT THE DISTILLATION.
Claim 2
Dependent Claim
150 words
A PROCESS FOR THE INCORPORATION OF PRUSSIAN BLUE INTO STAND OIL, WHICH COMPRISES TREATING AN AQUEOUS SUSPENSION OF THE SAID PRUSSIAN BLUE WITH ISOBUTYL ALCOHOL IN SUCH A QUANTITY THAT THE RATIO BY WEIGHT OF ISOBUTYL ALCOHOL TO WATER IN THE PIGMENT SUSPENSION IS ABOUT 3:1, SUBJECTING THE RESULTING MIXTURE TO DISTILLATION TO REMOVE OVERHEAD THE WATER AND ISOBUTYL ALCOHOL, ADDING TO THE DISTILLATION MIXTURE DURING THE COURSE OF THE DISTILLATION A SUFFICIENT QUANTITY OF STAND-OIL TO MAINTAIN THE SAID DISTILLATION MIXTURE AT SUBSTANTIALLY ITS ORIGINAL VOLUME, CONTINUING THE DISTILLATION UNTIL SUBSTANTIALLY ALL OF THE WATER AND SUBSTANTIALLY ALL OF THE ISOBUTYL ALCOHOL HAS BEEN REMOVED OVERHEAD AND THEN RECOVERING THE DESIRED PRUSSION BLUE STAND OIL MIXTURE FROM THE DISTILLATION RESIDUE, THE PROPORTIONS OF ISOBUTYL ALCOHOL, STAND OIL AND WATER IN THE DISTILLATION MIXTURE BEING CONTROLLED SO AS TO MAINTAIN A SINGLE LIQUID PHASE IN THAT MIXTURE THROUGHOUT THE DISTILLATION.
References Cited (Backward Citations)
GB318937A
Cited
US2357028A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |