Wetting liquid composition for offset master plate
Abstract
Abstract THE PRINTABILITY OF AN OFFSET MASTER PLATE CAN BE MARKEDLY IMPROVED BY USING A WETTING LIQUID COMPOSITION COMPRISING (A) AT LEAST ONE OF TRANSPARENT AND WATER INSOLUBLE FINE PARTICLES HAVING A PARTICLE SIZE OF NOT MORE THAN 0.1U SUCH AS COLLOIDAL SILICA AND ALUMINA, (B) AT LEAST ONE OF ALKALI METAL ALTS SUCH AS SULFATES, HALIDES AND NITRATES OF K AND NA, (C) AT LEAST ONE OF LOW MOLECULAR POLHYDRIC ALCOHOLS AND POLYALKYLENE OXIDES HAVING A MOLECULAR WEIGHT OF NOT MORE THAN 1000 SUCH AS POLYETHYLENE GLYCOL, PROPYLENE GLYCOL, DIETHYLENE GLYCOL AND HEXYLENE GLYCOL AND (D) AT LEAST ONE OF WEAK ORGANIC ACIDS SUCH AS CITRIC ACID, SUCCINIC ACID, TARTARIC ACID, ADIPIC ACID, ASCORBIC ACID AND PROPIONIC ACID. SAID COMPOSITION PREFERABLY HAS A PH VALUE OF ABOUT 4.0-5.6.
Inventors
- 👤 S Suzuki
- 👤 N Kobayashi
- 👤 K Shimizu
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-12 | 1978-02-11 | 1978-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-12 | 1982-02-11 | 1982-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-12 | 1986-02-11 | 1986-08-13 | $7700.00 | Window Closed / Lapsed |