Plastic compositions based on poly(vinyl chloride)and containers manufactured therefrom
Abstract
Abstract THE PLASTIC COMPOSITIONS ARE BASED ON POLY(VINYL CHLORIDE) AND CONTAIN IN ADDITION FROM 0.1 TO 5% BY WEIGHT OF A RESIN OBTAINED BY POLYMERIZING VINYL CHLORIDE IN THE PRESENCE OF AN ETHYLENE POLYMER HAVING A MELT INDEX OF 0.3 TO 40 AND AT LEAST ONE CHARACTERISTIC SELECTED FROM (A) 0.2 TO 4 DOUBLE BOND PER 100 CARBON ATOMS AND (B) 5 TO 30 METHYL GROUPS PER 100 CARBON ATOMS AND UNDER A PARTIAL PRESSURE OF VINYL CHLORIDE WHICH IS ALWAYS BELOW THE SATURATED VAPOR PRESSURE OF VINYL CHLORIDE AT THE POLYMERIZATION TEMPERATURE, THE TOTAL AMOUNT OF ETHYLENE POLYMER IN SAID RESIN BEING $2.5% BY WEIGHT WITH RESPECT TO THE POLY(VINYL CHLORIDE) BASE. THE COMPOSITIONS ARE READILY PROCESSED INTO HOLLOW CONTAINERS WHICH ARE TRANSPARENT, SUBSTANTIALLY COLORLESS, AND HAVE EXCELLENT RESISTANCE TO AGING AND GOOD THERMAL RESISTANCE.
Inventors
- 👤 M Obsomer
Bibliographic Details
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |