US3749637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminates containing cross-linked ethylene/carboxylic acid copolymer adhesives
Assignee: EIDP Inc
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Filing: 1971-01-20
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Granted: 1973-07-31
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Expires: 1991-01-20
Abstract
Abstract A LAMINATE COMPRISES AT LEAST TWO SUBSTRATES AND AN ADHESIVE HAVING WET ADHESION AND HEAT RESISTANCE, ESPECIALLY TWO FLEXIBLE SUBSTRATES. THE ADHESIVE COMPRISES A PARTIALLY NEUTRALIZED COPOLYMER OF ETHYLENE AND AN ALPHA-BETA ETHYLENICALLY UNSATURATED CARBOXYLIC ACID CROSS-LINKED WITH AN EPOXY RESIN OF AMINO-FORMALDEHYDE RESIN.
Inventors
- 👤 J Reardon
- 👤 V Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:38
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/32; B32B7/00; B32B7/04; B32B7/12; C; C08; C08F; C08F8/00; C08F8/44; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; C09J163/00; C08L; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/14; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31678; Y10T428/31692; Y10T428/31855; Y10T428/3188; Y10T428/31895
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |