Process of coating paper
Abstract
Abstract THE PROCESS OF COATING A PAPER BASE WITH A HOT MELT COATING COMPOSITION WHICH IS COMPRISED OF AT LEAST 50 WEIGHT PERCENT OF A COATING PIGMENT OR A MIXTURE THEREOF DISPERSED IN AN UNDILUTED, HEAT EXTRUDABLE BINDER (E.G., A NORMALLY SOLID THERMOPLASTIC RESIN), SAID BINDER COMPRISING LESS THAN 50 WEIGHT PERCENT OF THE TOTAL WEIGHT OF THE COATING COMPOSITION. FOR EXAMPLE, A PUBLICATION PAPER IS PREPARED BY COATING AN UNCOATED, PREFINISHED, GROUND WOOD PAPER ON BOTH SIDES WITH A COATING COMPOSITION THAT COMPRISES A NORMALLY SOLID ETHYLENE POLYMER OR COPOLYMER AND A CLAY PIGMENT WHEREIN THE AMOUNT OF PIGMENT IS GREATER THAN 50% BY WEIGHT OF SAID COATING. THE TOTAL COATED WEIGHT (BOTH SIDES) IS LESS THAN 15 GRAMS PER SQUARE METER (GMS./M.2).
Inventors
- 👤 S Guastella
- 👤 J Larrivee
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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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) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |