Fast-set plastisol ink
Abstract
Abstract A non-volatile, fast-set, heat-dry plastisol vehicle for printing inks is provided comprising a finely divided, substantially water-insoluble, thermoplastic, film-forming polyvinyl resin that is solid at room temperatures dispersed in a sufficient amount of a single compatible liquid plasticizer to form a plastisol, and an effective amount of a tackifying agent consisting essentially of liquid polystyrene to inhibit ''''flying'''' of the plastisol from a printing press and the like. After application to a backing member, usually paper stock, in a printing operation, the plastisol is heated above the softening temperature of the polyvinyl resin which then swells and effectively absorbs the liquid plasticizer and liquid polystyrene. Preferably, the polyvinyl resin is pigmented to provide a contrasting color with respect to the backing member on which it is printed. The use of liquid polystyrene as a tackifying agent reduces not only the number of different plasticizers needed but also the total amount of plasticization as compared to prior practice.
Inventors
- 👤 C Charogoff
- 👤 D Budzinski
- 👤 J Sorkin
Bibliographic Details
Claims Analysis
Total Claims: 4References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |