Method of making synthetic suede-like plastic films
Abstract
Abstract A METHOD OF MAKING SUED-LIKE SURFACES FROM SYNTHETIC THERMOPLASTIC MATERIAL SUCH AS POLYVINYL CHLORIDE. THESE SURFACES ARE FORMED FROM THERMOPLASTIC PARTICLES OF A SIZE BELOW ABOUT 500 MICRONS, PREFERABLY BELOW ABOUT 100 MICRONS, AND ARE FUSED INTO A CONTINUOUS LAYER OF THE SYNTHETIC POLYMER BELOW THE SURFACE. THE SURFACES ARE AMDE BY HEATING A LIQUID PLASTISOL HAVING A DISPERSED MIXTURE OF A PREDOMINANT AMOUNT OF RELATIVELY ALRGE PARTICLES WITH A MINOR AMOUNT OF RELATIVELY SMALL PARTICLES ON A FORMING SURFACE AT A TEMPERATURE AND FOR A TIME SUFFICIENT TO FUSE THE SMALL PARTICLES INTO A CONTINUOUS LAYER AND TO FUSE THE OUTER SURFACE OF THE RELATIVELY LARGE PARTICLES ONLY TO THE CONTINUOUS LAYER.
Inventors
- 👤 Sarkis M Kassouni
- 👤 Arthur S Nicholas
Bibliographic Details
Claims Analysis
Total Claims: 0References 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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |