Peelable metal protectants
Abstract
Abstract A LOW SOLVENT, HIGH SOLIDS CONTAINING MASKANT OR METAL PROTECTANT FILM FORMING LIQUID COMPOSITION INCLUDING A LOW MOLECULAR WEIGHT LIQUID DIENE PREPOLYMER HAVING END AND SIDE CHAIN FUNCTIONALITY SUCH AS A 10002000 EQUIVALENT WEIGHT HYDROXYL, THIO, EPOXY, AMINE, CARBOXYL, CHLORO OR ISOCYANATE TERMINATED AND SIDE CHAIN MODIFIED DIENE POLYMER HAVING A FUNCTIONALITY OF AT LEAST 2 AND A CROSS-LINKING AND CURING AGENT SUCH AS AN ALIPHATIC, CYCLOALIPHATIC OR AROMATIC POLYISOCYANATE, POLYAMINE, POLYOL, OR POLYBASIC ACID, ACID CHLORIDE OR ANHYDRIDE. SAID COMPOSITION BEING CURABLE TO FORM A PEELABLE POLYMERIC FILM HAVING A MOLECULAR WEIGHT GREATER THAN 20,000. THE MASKANT FILM MAY CONTAIN ALUMINUM, MAGNESIUM OR CALCIUM CARBONATE, OXIDE OR SILICATE FILLERS SUCH THAT THE FILM IS TRANSLUCENT AS APPLIED, BUT BECOMES VISIBLE IN REGIONS THAT ARE MECHANICALLY STRESSED.
Inventors
- 👤 Henry M Deutsch
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 |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |