Bonding condensation polymers to polymeric base materials
Abstract
Abstract POLYMERIC SUBSTRATES ARE PROVIDED WITH COATINGS OF CONDENSATION POLYMERS WHICH PROVIDE A WIDE VARIETY OF IMPROVED PHYSICAL, CHEMICAL AND MECHANICAL PROPERTIES BY FIRST EXPOSING THE SUBSTRATE TO AN ELECTRICAL DISCHARGE AND SUBSEQUENTLY APPLYING TO THE TREATED SUBSTRATE THE MONOMERIC PRECURSOR OR PRECURSORS OF A CONDENSATION POLYMER. POLYMERIZATION OF THE PRECURSORS TAKES PLACE RAPIDLY TO PRODUCE A STRONGLY ADHERENT COATING OF THE CONDENSATION POLYMER. POLYMERIC SUBSTRATES WHICH ARE PARTICULARLY USEFUL ARE POLYOLEFINS, POLYESTERS, POLYVINYL OR POLYVINYLIDENE COMPOUNDS AND CELLULOSE AND ITS DERIVATIVES AND THESE CAN USEFULLY BE COATED WITH CONDENSATION POLYMERS, EVEN THOSE WITH WHICH THEY ARE NORMALLY INCOMPATIBLE.
Inventors
- 👤 P Blais
- 👤 D Carlsson
- 👤 D Wiles
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 |