US2663652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for coating with polyethylene
Assignee: EIDP Inc
•
Filing: 1950-03-04
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Granted: 1953-12-22
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Expires: 1970-03-04
Abstract
No abstract record available.
Inventors
- 👤 Wilford E Railing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:44
CPC Classifications
B; B05; B05D; B05D3/00; B05D3/02; B05D3/0254; B05D7/00; B05D7/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A METHOD OF COATING SURFACE WITH POLYETHYLENE HAVING A MELTING POINT OF AT LEAST 105* C. AND A VISCOSITY AT 190* OF AT LEAST 25,000 POISES, WHICH COMPRISES APPLYING TO THE SURFACE TO BE COATED A POWDERED MIXTURE OF SUCH POLYETHYLENE AND FROM 20% TO 200%, BASED ON THE WEIGHT OF THE POLYETHYLENE, OF A VOLATILE SOLVENT MATERIAL OF THE CLASS CONSISTING OF HYDROCARBONS AND CHLORINATED HYDROCARBONS HAVING A BOILING POINT OF 150* TO 300* C. AND WHICH DISSOLVES POLYETHYLENE AT TEMPERATURES ABOVE 120* C., AND BAKING THE MATERIAL COATED WITH SAID MIXTURE AT TEMPERATURES OF 120* TO 230* C. BUT BELOW THE ATMOSPHERIC BOILING POINT OF THE SOLVENT MATERIAL UNTIL SUBSTANTIALLY ALL OF THE SOLVENT IS REMOVED.
Claim 2
Independent Claim
118 words
A METHOD OF COATING SURFACE WITH POLYETHYLENE HAVING A MELTING POINT OF AT LEAST 105* C. AND A VISCOSITY AT 190* OF AT LEAST 25,000 POISES, WHICH COMPRISES APPLYING TO THE SURFACE TO BE COATED A POWDERED MIXTURE OF SUCH POLYETHYLENE AND FROM 20% TO 200%, BASED ON THE WEIGHT OF THE POLYETHYLENE, OF A VOLATILE SOLVENT MATERIAL OF THE CLASS CONSISTING OF HYDROCARBONS AND CHLORINATED HYDROCARBONS HAVING A BOILING POINT OF 150* TO 300* C. AND WHICH DISSOLVES POLYETHYLENE AT TEMPERATURES ABOVE 120* C., AND BAKING THE MATERIAL COATED WITH SAID MIXTURE AT TEMPERATURES OF 120* TO 230* C. BUT BELOW THE ATMOSPHERIC BOILING POINT OF THE SOLVENT MATERIAL UNTIL SUBSTANTIALLY ALL OF THE SOLVENT IS REMOVED.
References Cited (Backward Citations)
GB191308417A
Cited
US2414497A
Cited
US2340452A
Cited
US2406039A
Cited
GB585395A
Cited
GB586768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-21 | 1957-06-22 | 1957-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-21 | 1961-06-22 | 1961-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-21 | 1965-06-22 | 1965-12-22 | $7700.00 | Window Closed / Lapsed |