US2520429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coloring aqueous emulsions of resins
Assignee: Monsanto Chemicals Ltd
•
Filing: 1949-02-16
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Granted: 1950-08-29
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Expires: 1969-02-16
Abstract
No abstract record available.
Inventors
- 👤 Harold F Park
- 👤 Francis J Pokigo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:50
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR THE COLORATION OF VINYLIDENE POLYMERS WHICH COMPRISES ADDING TO AN AQUEOUS EMULSION OF A VINYLIDENCE POLYMER AN EMULSION OF AN OIL-SOLUBLE ORGANIC DYE, SAID DYE EMULSION HAVING BEEN PRODUCED BY DISSOLVING THE DYE IN A NON-VOLATILE ALIPHATIC ACID CONTAINING FROM 6 TO 20 CARBON ATOMS, ADDING TO THE SOLUTION THUS FORMED FROM 0.1 TO 1.5 MOLS OF A NON-VOLATILE ALIPHATIC MONOAMINE PER MOL OF ACID AND THEN EMULSIFYING THE MIXTURE WITH WATER.
Claim 2
Dependent Claim
75 words
A PROCESS FOR THE COLORATION OF VINYLIDENE POLYMERS WHICH COMPRISES ADDING TO AN AQUEOUS EMULSION OF A VINYLIDENCE POLYMER AN EMULSION OF AN OIL-SOLUBLE ORGANIC DYE, SAID DYE EMULSION HAVING BEEN PRODUCED BY DISSOLVING THE DYE IN A NON-VOLATILE ALIPHATIC ACID CONTAINING FROM 6 TO 20 CARBON ATOMS, ADDING TO THE SOLUTION THUS FORMED FROM 0.1 TO 1.5 MOLS OF A NON-VOLATILE ALIPHATIC MONOAMINE PER MOL OF ACID AND THEN EMULSIFYING THE MIXTURE WITH WATER.
References Cited (Backward Citations)
US1660213A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-28 | 1954-02-27 | 1954-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-28 | 1958-02-27 | 1958-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-28 | 1962-02-27 | 1962-08-29 | $7700.00 | Window Closed / Lapsed |