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US3792020A
Expired / Lapsed
US
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High-temperature stable modified aromatic amine-aldehyde molding powders modified with aromatic polycarboxylic compounds
Assignee: Monsanto Co
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Filing: 1972-10-30
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Granted: 1974-02-12
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Expires: 1992-10-30
Abstract
Abstract THERMOSETTABLE MOLDNG POWDERS OF AROMATIC AMINE/ FORMALDEHYDE RESIN AND AROMATIC POLYCARBOXYLIC COMPOUND WHICH HAVE BEEN PROCESSED WITH HEAT IN A SHEAR FIILED TO ADVANCE THE COMPOSITION TO THE STAGE WHERE FURTHER HEATING WILL EVOLVE LESS THAN 2 PERCENT OF THE INITIAL WEIGHT AS VOLATILES. THE PRODUCT MOLDING POWDER DISPLAYES LITTLE OR NO TENDENCY TO BLISTER, SWELL, OR DITORT DURING MOLDING AND POST-CURING.
Inventors
- 👤 R Huck
- 👤 Blanc J Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:02
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09
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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |