US3560412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting compositions comprising blends of acetal resins and amine-aldehyde resins
Assignee: JOSEPH F ACKERMAN
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Filing: 1970-01-12
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Granted: 1971-02-02
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Expires: 1990-01-12
Abstract
Abstract POLYACETAL RESINS ARE MADE BY REACTING POLYOLS CONTAINING THREE OR MORE HYDROXYL GROUPS WITH FORMALDEHYDE IN THE PRESENCE OF ACID CATALYSTS. THESE RESINS, WHEN BLENDED WITH AMINE-FORMALDEHYDE RESINS, ARE EXCELLENT COATINGS FOR WOOD, PAPER, METAL, PLASTICS AND GLASS. THE BLENDS ARE LIQUID AND CAN BE USED WITHOUT ADDITION OF SOLVENT.
Inventors
- 👤 Joseph J Bernardo
- 👤 Joseph F Ackerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:55
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/26; C; C08; C08G; C08G4/00; C08L; C08L59/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163; Y10T428/31678; Y10T428/31688; Y10T428/31942; Y10T428/31949; Y10T428/31957
Claims Analysis
Total Claims: 0
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References 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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |