Cellophane having a substantially haze-free coating of the dried residue from an organic solution of a vinylidene chloride polymer of narrow compositional range
Abstract
Abstract THIS INVENTION IS DIRECTED TO COATED ARTICLES COMPRISING ESSENTIALLY A CELLOPHANE SUBSTRATE HAVING A S A COATING ON AT LEAST ONE SURFACE THEREOF A SUBSTANTIALLY HAZE-FREE COAT ING CONSISTING OF THE DRIED RESIDUE OF AN ORGANIC SOLUTION OF A VINYLIDENE CHLORIDE INTERPOLYMER OF FROM ABOUT 88 TO 93 MOLE PERCENT VINYLIDENE CHLORIDE AND ABOUT 12 TO 7 MOLE PERCENT OF A MIXTURE OF ACRYLONITRILE AND METHYL METHACRYLATE SAID MIXTURE CONSISTING O A MOLAR RATIO OF ACRYLONIRILE TO METHYL METHACRYLATE OF FROM ABOUT 1 : 1 TO 4:1, SAID INTERPOLYMER BEING SOLUBLE IN A SOLVENT MIXTURE COMPOSED OF 65 PARTS BY WEIGHT TETRAHYDROURAN AND 35 PARTS BY WEIGHT TOLUENE AT A TEMPERATURE OF FROM ABOUT 25*C. TO 46*C.
Inventors
- 👤 P Hinkamp
- 👤 D Foye
Bibliographic Details
Claims Analysis
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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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |