US3654069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polystyrene laminate and adhesive-coated film for lamination to polystyrene
Assignee: POLYMER EXTRUDED PRODUCTS Inc A CORP OF DE
•
Filing: 1969-11-12
•
Granted: 1972-04-04
•
Expires: 1989-11-12
Abstract
Abstract POLYSTYRENE SHEET CAN BE PROVIDED WITH A DECORATIVE AND/OR PROTECTIVE FILM COATING BY UTILIZATION OF A STYRENE/ ACRYLONITIRLE POLYMER ADHESIVE AND A FILM HAVING A PREDOMINANTLY METHACRYLATE POLYMERIC SURFACE. THE PREFERRED LAMINATED COMBINES HIGH IMPACT POLYSTYRENE HAVING LAMINATED THERETO A FILM CONSISTING OF A HETEROGENEOUS POLYMERIC COMPOSITION HAVING A PREDOMINANTLY METHACRYLATE CONTINUOUS PHASE WITH CROSS-LINKED PREDOMINANTLY ACRYLATE POLYMER DISPERSED THEREIN. THE FILM COATED WITH ADHESIVE IS OF PARTICULAR USE IN THAT IR CAN BE CONTINUOUSLY APPLIED TO THE SUBSTRATE AT THE TIME OF EXTRUSION OF THE SUBSTRATE.
Inventors
- 👤 Bertram B Freudenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:46
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/302; B32B27/308; B32B7/00; B32B7/04; B32B7/12; B32B2333/00; B32B2333/04; B32B2333/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928; Y10T428/31935
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |