Plasticized nonaqueous methyl methacrylate polymer dispersion coating compositions
Abstract
Abstract A LIQUID COATING COMPOSITION PRODUCIBLE INTO FILMS OF IMPROVED PHYSICAL PROPERTIES WHEN APPLIED TO A SUBSTRATE AND DRIED, COMPRISING A DISPERSION OF A METHYL METHACRYLATE POLYMER OR COPOLYMER MATERIAL IN AN ORGANIC LIQUID, A PLASTICIZER AND A HIGH BOILING SOLVENT COMBINABLE WITH THE PLASTICIZER, WHEREIN THE COPOLYMER MATERIAL FURTHER COMPRISES A POLYMER FORMED FROM AN ETHYLENICALLY UNSATURATED MONOMER, WHEREIN THE ORGANIC LIQUID IS ONE IN WHICH PARTICLES OF THE POLYMER OR COPOLYMER ARE SUBSTANTIALLY INSOLUBLE, WHEREIN THE PLASTICIZER IS AN ESTER PLASTICIZER CHARACTERIZED BY A CERTAIN CRITICAL VOLATILITY, AND A CERTAIN CRITICAL SOLVENCY PREDICTABLE IN TERMS OF THE RATIO OF THE POLAR TO NONPOLAR SOLUBILITY PARAMETERS, AND WHEREIN THE HIGH BOILING SOLVENT HAS A CERTAIN CRITICAL SOLVENCY, PREFERABLY THE SAME CRITICAL SOLVENCY AS THE ESTER PLASTICIZER. A METALLIC PIGMENT MAY BE ADDED TO THE COATING COMPOSITION TO PRODUCE A FILM OF EXCELLENT METALLIC GLAMOUR.
Inventors
- 👤 William R Johnson
- 👤 William R Sevy
- 👤 James E Weigel
- 👤 Robert A Taller
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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |