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US3752867A
Expired / Lapsed
US
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Fireproof polyesters from halogenated salicylic acid
Assignee: UCB A
•
Filing: 1971-11-08
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Granted: 1973-08-14
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Expires: 1991-11-08
Abstract
Abstract FIREPROOF POLYMERS WHICH ARE THE POLYMERIZATION PRODUCTS OF UNSATURATED POLYESTER RESIN COMPOSITIONS COMPRISING: (A) A POLYCONDENSATION PRODUCT OF UNSATURATED ALIPHATIC POLYCARBOXYLIC ACIDS, OPTIONALLY SATURATED ALIPHATIC CARBOXYLIC ACIDS OR AROMATIC CARBOXYLIC ACIDS, POLYHYDRIC ALCOHOLS AND HALOGENATED SALICYLIC ACIDS OF THE FORMULA 1-(R-OOC-),2,3,4,5-TETRA(X-),6-(R''-O-)BENZENE WHEREIN X IS HYDROGEN OR HALOGEN, AT LEAST ONE X BEING HALOGEN, R IS HYDROGEN, ALKYL OR ARYL AND R'' IS HYDROGEN, ALKANOYL OR AROYL, AND (B) A MONOETHYLENICALLY UNSATURATED COPOLYMERIZABLE MONOMER.
Inventors
- 👤 Y Merck
- 👤 J Vion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:42
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/682; C08G63/6824; C08G63/6828; Y; Y10; Y10S; Y10S260/00; Y10S260/24
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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |