US3220865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose acetate butyrate emulsion coating
Assignee: Eastman Kodak Co
•
Filing: 1961-06-23
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Granted: 1965-11-30
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Expires: 1981-06-23
Abstract
No abstract record available.
Inventors
- 👤 Charles H Coney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:57
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/10; C09D101/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A STABLE OIL-IN-WATER EMULSION COMPOSED OF A CONTINOUS AQUEOUS PHASE AND A DISPERSE PHASE, SAID EMULSION ESSENTIALLY CONSISTING OF 20 TO 40 PARTS BY WEIGHT OF WATER, 10 TO 27 PARTS BY WEIGHT CELLULOSE ACETATE BUTYRATE HAVING A BUTYRYL CONTENT OF FROM ABOUT 26 TO 48%, AN ACETYL CONTENT OF FROM ABOUT 20 TO 6%, A FREE UNESTERIFIED HYDROXYL CONTENT OF FROM 2.5 TO 0.7% AND A VISCOSITY OF FROM ABOUT 0.1 TO ABOUT 20 SECONDS; 4 TO 15 PARTS BY WEIGHT DIMETHYLPHTHALATE; 13 TO 30 PARTS BY WEIGHT TOLUENE; 3 TO 9 PARTS BY WEIGHT ETHYL ALCOHOL; 6 TO 15 PARTS BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ISOHEXYLACETATE AND 2-ETHYLHEXYL ACETATE; 0.5 TO 3 PARTS BY WEIGHT OF A SULFATE ESTER OF AN ALKYL PHENOXYPOLYOXYETHYLENE ETHANOL AND 0.3 PART BY WEIGHT OF THE CONDENSATION PRODUCT OF ETHYLENE OXIDE WITH NONYL PHENOL.
Claim 2
Dependent Claim
147 words
A STABLE OIL-IN-WATER EMULSION COMPOSED OF A CONTINOUS AQUEOUS PHASE AND A DISPERSE PHASE, SAID EMULSION ESSENTIALLY CONSISTING OF 20 TO 40 PARTS BY WEIGHT OF WATER, 10 TO 27 PARTS BY WEIGHT CELLULOSE ACETATE BUTYRATE HAVING A BUTYRYL CONTENT OF FROM ABOUT 26 TO 48%, AN ACETYL CONTENT OF FROM ABOUT 20 TO 6%, A FREE UNESTERIFIED HYDROXYL CONTENT OF FROM 2.5 TO 0.7% AND A VISCOSITY OF FROM ABOUT 0.1 TO ABOUT 20 SECONDS; 4 TO 15 PARTS BY WEIGHT DIMETHYLPHTHALATE; 13 TO 30 PARTS BY WEIGHT TOLUENE; 3 TO 9 PARTS BY WEIGHT ETHYL ALCOHOL; 6 TO 15 PARTS BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ISOHEXYLACETATE AND 2-ETHYLHEXYL ACETATE; 0.5 TO 3 PARTS BY WEIGHT OF A SULFATE ESTER OF AN ALKYL PHENOXYPOLYOXYETHYLENE ETHANOL AND 0.3 PART BY WEIGHT OF THE CONDENSATION PRODUCT OF ETHYLENE OXIDE WITH NONYL PHENOL.
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |