US2517754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot-melt coating composition
Assignee: Dow Chemical Co
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Filing: 1945-11-13
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Granted: 1950-08-08
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Expires: 1965-11-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Young
- 👤 Kenneth D Bacon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:08
CPC Classifications
C; C09; C09D; C09D101/00; C09D101/08; C09D101/26; C09D101/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A WAX-FREE HOT-MELT COATING COMPOSITION CONSISTING ESSENTIALLY OF AN ETHYL CELLULOSE, HAVING AN ETHOXYL CONTENT OF 47.5 TO 50 PER CENT AND A VISCOSITY OF LESS THAN 30 CENTIPOISES WHEN MEASURED ON A 5 PER CENT SOLUTION THEREOF, BY WEIGHT, IN A MIXTURE OF 80 PARTS TOLUENE AND 20 PARTS ETHANOL, A PALE, REFINED MINERAL OIL HAVING A VISCOSITY BETWEEN ABOUT 40 AND ABOUT 100 SAYBOLT UNITS AT 210*F., AND AN ETHYLENE DIAMINE POLYAMIDE OF A PARTIALLY POLYMERIZED ACID SELECTED FROM THE GROUP CONSISTING OF LINOLEIC AND LINOLENIC ACIDS, HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 3000 TO ABOUT 5000, THE PROPORTIONS OF THE THREE INGREDIENTS BEING REPRESENTED BY THE AREA A ON THE ACCOMPANYING DRAWING.
Claim 2
Dependent Claim
118 words
A WAX-FREE HOT-MELT COATING COMPOSITION CONSISTING ESSENTIALLY OF AN ETHYL CELLULOSE, HAVING AN ETHOXYL CONTENT OF 47.5 TO 50 PER CENT AND A VISCOSITY OF LESS THAN 30 CENTIPOISES WHEN MEASURED ON A 5 PER CENT SOLUTION THEREOF, BY WEIGHT, IN A MIXTURE OF 80 PARTS TOLUENE AND 20 PARTS ETHANOL, A PALE, REFINED MINERAL OIL HAVING A VISCOSITY BETWEEN ABOUT 40 AND ABOUT 100 SAYBOLT UNITS AT 210*F., AND AN ETHYLENE DIAMINE POLYAMIDE OF A PARTIALLY POLYMERIZED ACID SELECTED FROM THE GROUP CONSISTING OF LINOLEIC AND LINOLENIC ACIDS, HAVING A MOLECULAR WEIGHT IN THE RANGE FROM ABOUT 3000 TO ABOUT 5000, THE PROPORTIONS OF THE THREE INGREDIENTS BEING REPRESENTED BY THE AREA A ON THE ACCOMPANYING DRAWING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |