US2808347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated polymeric thermoplastic dielectric film and method for producing same
Assignee: EIDP Inc
•
Filing: 1954-04-23
•
Granted: 1957-10-01
•
Expires: 1974-04-23
Abstract
No abstract record available.
Inventors
- 👤 Blatz Philip Strubing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:25
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/227; H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; H01B3/422; H01B3/423; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31667; Y10T428/31855
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
129 words
THE PROCESS WHICH COMPRISES COATING A BALANCED, BIAXIALLY ORIENTED, HEAT-SET POLYETHYLENE TEREPHTHALATE BASE FILM WITH A COATING COMPOSITION CONSISTING OF 20 PARTS BY WEIGHT OF CHLOROSULFONATED POLYETHYLENE, 8 PARTS OF LITHARAGE, 0.5 PART OF HYDROGENTED WOOD ROSIN, 0.2 PART OF MERCAPTOBENZOTHIAZOLE, 10 PARTS OF AN ESTERSIL COMPRISED OF A SUPERCOLLOIDAL SUBSTRATE HAVING A SURFACE OF SILICA COATED WITH -OR GROUPS CHEMICALLY BONDED TO THE SILICA, R BEING A HYDROCARBON RADICAL OF FROM 2 TO 18 CARBON ATOMS WHEREIN THE CARBON ATOM ATTACHED TO OXYGEN IS ALSO ATTACHED BY HYDROGEN AND 200 PARTS OF CARBON TETRACHLORIDE TO FORM A CONTINUOUS COATING ON THE FILM, DRYING STHE COATED FILM ANAD THEREAFTER HEATING SAID COATED FILM AT A TEMPERATURE OF ABOUT 150*C., FOR FROM ABOUT 15-30 MINUTES TO CURE SAID CHLOROSULFONATED POLYETHYLENE.
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) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |