Defensive publication
Abstract
Abstract WHEREIN R IS HYDROGEN, AMMONIUM OR SUBSTITED AMMONIUM WHICH WHEN HEATED ABOVE 200*F., DECOMPOSES INTO AN ACID AND A VOLATILE AMINE CONTAINING MOIETY (E.G., SULFURIC ACID, AMMOMIUM SULFANATE, AND PYRIDINE SULFAMATE). A VERY DESIRABLE WEIGHT RATION OF POLYGLYCIDYL ETHER TO CONVERTING RESIN IS FROM ABOUT 95:5 TO ABOUT 30:70, AND THESE CURABLE COATING COMPOSITIONS MAY BE DILUTED WITH CONVENTIONAL DILUENTS SUCH AS OXYGENATED HYDROCARBONS (KETONES, ETHERS, ESTERS, ETC.) TO FACILITATE HANDLING. NH2-SO2-O-R CURABLE CAN COATING COMPOSITIONS AND THEIR PREPARATION ARE DESCRIBED. MORE PARTICULARLY, AMINO-CONVERTED EPOXY COATINGS WHICH ARE ESPECIALLY SUITABLE FOR COATING ALUMINUM BEVERAGE CANS COMPRISE (A) A POLYGLYCIDYL ETHER OF A POLYHYDRIC PHENOL OF MOLECULAR WEIGHT OF FROM ABOUT 900 TO ABOUT 4,500; (B) A CONVERTING RESIN SELECTED FROM THE GROUP CONSISTING OF ALKYLATED AMINO RESINS AND PHENOLIC RESINS WHEREIN EACH OF THE RESINS CONTAIN ALKYLATED METHYLOL GROUPS, (E.G., UREA-FORMALDEHYDE RESINS); AND (C) A CATALYTIC AMOUNT OF A COMPOUND OF THE FORMULA
Inventors
No inventors recorded.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |