US3565747A
Expired / Lapsed
US
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Laminates of metal and olefin polymers having finely divided,solid,non-de-formable,organic polymer particles therein
Assignee: Dow Chemical Co
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Filing: 1969-06-02
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Granted: 1971-02-23
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Expires: 1989-06-02
Abstract
Abstract A LAMINATE HAVING IMPROVED BOND STRENGTHS AND ADHESIVENESS COMPRISES ONE METAL SUBSTRATE SUCH AS ALUMINUM BONDED TO A LAYER OF AN OLEFIN POLYMER SUCH AS POLYETHYLENE. THE OLEFIN POLYMER HAS BETWEEN ABOUT 25 AND ABOUT 80 PERCENT BY WEIGHT BY WEIGHT SOLID, NON-DEFORMABLE, ORGANIC POLYMER PARTICLES HAVING A DIAMETER OF LESS THAN ABOUT 20 MICRONS. THE ORGANIC PARTICLES HAVE A MELTING POINT HIGHER THAN THE MELTING POINT OF THE OLEFIN POLYMER, ARE SUBSTANTIALLY NON-ADHERENT TO THE OLEFIN POLYMER AND TO THEMSELVES, AND ARE FREE OF REACTIVE GROUPS SUCH AS CARBOXYL, HYDROXYL, AMINE, AND THE LIKE.
Inventors
- 👤 Gerald G Vincent
- 👤 Frank L Saunders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:24
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; C09J151/00; C09J151/06; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/254; Y10T428/31504; Y10T428/31678; Y10T428/31692
Claims Analysis
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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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |