US3703426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making polyester laminates
Assignee: Ashland LLC
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Filing: 1970-11-18
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Granted: 1972-11-21
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Expires: 1990-11-18
Abstract
Abstract THIS INVENTION RELATES TO A METHOD OF MAKING IMPROVED POLYESTER LAMINATES BY WASHING THE SURFACE OF THE POLYESTER WITH SOLVENT SOLUTION OF AN ORGANIC POLYISOCYANATE AND THEN ADDING AN ISOCYANATE TYPE ADHESIVE TO THE SURFACE AND BRINGING THE POLYESTER COMPOSITION CONTAINING THE ADHESIVE INTO CONTACT WITH THE MATERIALS TO BE LAMINATED, EITHER ANOTHER POLYESTER OR A METAL, AND ALLOWING THE ADHESIVE TO SET AND CURE.
Inventors
- 👤 William M Larson
- 👤 William E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:59
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B15/00; B32B15/04; B32B15/08; B32B15/09; B32B27/36; B32B7/00; B32B7/04; B32B7/12; B32B2305/00; B32B2305/08; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31551; Y10T428/31565; Y10T428/31573; Y10T428/31583; Y10T428/31587; Y10T428/31605
Claims Analysis
Total Claims: 0
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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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |