Continuous casting method for making pearlized resin materials
Abstract
Abstract A CONTINUOUS METHOD FOR CASTING A LIQUID PLASTIC MIXTURE OF A LIGHT-TRANSMITTING RESIN AND PEARL ESSENCE IS PROVIDED. THE PLASTIC MIXTURE IS PASSED THROUGH AN EXTRUDER CONTAINING A PLURALITY OF THIN PLATES IN A PREARRANGED SPACED RELATIONSHIP FOR ORIENTING THE PEARL ESSENCE WITHIN THE RESIN. THE EXTRUDATE IS COVERED ON EACH SIDE BY PLASTIC FILMS TO INSULATE IT FROM THE OPEN AIR, AND IS PASSED CONTINUOUSLY PAST A HEAT SOURCE TO SOLIDIFY THE RESIN AND FIX THE ORIENTATION OF THE PEARL ESSENCE. A NOVEL APPARATUS IS PROVIDED FOR CARRYING OUT THE PROCESS. THE PEARLIZED RESIN MATERIALS MADE ACCORDING TO THE INVENTION ARE USEFUL FOR BUTTONS, INTERIOR ARCHITECTURAL MATERIALS, AND ORNAMENTAL GOODS.
Inventors
- 👤 Yoshio Morita
Bibliographic Details
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |