Phosphor containing plastic polystyrene
Abstract
Abstract A MOLDABLE PLASTIC PRODUCT COMPRISING POLYSTYRENE OR COPOLYMERS OF POLYSTYRENE SUCH AS THE VINYLS INCLUDING FOR EXAMPLE, VINYL CHLORIDE, VINYL ACETATE, VINYL BUTYRAL, VINYLIDENE CHLORIDE, ACRYLONITRILE, BUTADIENE, ALPHA OR BETAMETHYL STYRENE AND MALEIC ANHYDRIDE, AND OTHERS, AT LEAST 45 PERCENT BY WEIGHT POLYSTYRENE OF A PHTHALATE PLASTICIZER SUCH AS THE ALKYL, ARYL, ALKYL ARYL, DIALKYL AND DIARYL PHTHALATES AND IN PARTICULAR THE DIOCTYL PHTHALATES, AT LEAST 3 PERCENT BY WEIGHT POLYSTYRENE OR ANY WAX SUCH AS NATURAL OR SYNTHETIC ANIMAL, VEGETABLE OR MINERAL WAXES; PREFERRED ARE THE PARAFFIN WAXES CONTAINING PARAFFINIC HYDROCARBONS HAVING A CARBON CONTENT OF AT LEAST 16 CARBON ATOMS, AND AT LEAST .001 PERCENT BY WEIGHT POLYSTYRENE OF AN ELECTROLUMINESCENT, FLUORESCENT OR PHOSPHORESCENT PHOSPHOR SUCH AS THE P1-P30 TYPE PHOSPHORS WHICH INCLUDE THE SULFIDE AND OXIDE PHOSPHORS.
Inventors
- 👤 Alexander C Christy
Bibliographic Details
Claims Analysis
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 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 |