Patent US3695918A successfully refreshed from Google Patents.
US3695918A
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Heat sealable film and process for making same
Assignee: Imperial Chemical Industries Ltd
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Filing: 1970-09-14
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Granted: 1972-10-03
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Expires: 1990-09-14
Abstract
Abstract USING RESINS CONTAINING AN ISOCYANATE ENDED POLYURETHANE OF AVERAGE MOLECULAR WEIGHT MORE THAN 1000 AND AN ORGANIC POLYISOCYANATE CONTAINING ISOCYANURATE RINGS AND HAVING AN AVERAGE OF MORE THAN TWO ISOCYANATE GROUPS PER MOLECULE AS AN INTERMEDIATE ADHESIVE COAT BETWEEN A THERMOPLASTIC FILM AND A COATING OF A HEAT SEALABLE MATERIAL.
Inventors
- 👤 Peter Manners Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:52
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G18/70; C08G18/72; C08G18/77; C08G18/78; C08G18/79; C08G18/791; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/043; C08J7/044; C08J7/046; C08J7/048; C08J7/052; C09; C09D; C09D175/00; C09D175/04; C09J; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/35; C08J2427/00; C08J2427/02; C08J2427/04; C08J2427/08; C08J2475/00; C08J2475/04; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31547; Y10T428/31551; Y10T428/31573; Y10T428/3158; Y10T428/31583; Y10T428/31587
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-10-03 | 1976-04-03 | 1976-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-03 | 1980-04-03 | 1980-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-03 | 1984-04-03 | 1984-10-03 | $7700.00 | Window Closed / Lapsed |