US2885380A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame resistant composition comprising chlorinated polyester resin, inorganic oxide and an epoxide resin and method of preparing
Assignee: AT&T Inc
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Filing: 1955-10-11
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Granted: 1959-05-05
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Expires: 1975-10-11
Abstract
No abstract record available.
Inventors
- 👤 Vito D Elarde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:42
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A FLAME RESISTANT COMPOSITION COMPRISING BY WEIGHT ONE AND ONE-HALF PARTS OF A HIGHLY CHLORINATED POLYMERIZED POLYESTER RESIN PREPARED FROM HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID, A MIXTURE OF GLYCOLS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, AND PROPYLENE GLYCOL, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MALEIC ANHYDRIDE AND FUMARIC ACID AND STYRENE, THE HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID BEING PRESENT IN AN AMOUNT OF FROM 36 PERCENT TO 43 PERCENT BASED ON THE TOTAL WEIGHT OF THE POLYESTER COMPONENTS; ONE PART OF AN INORGANIC FLAME RETARDENT COMPOSED OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF BISMUTH OXIDE, ARSENIC OXIDE AND ANTIMONY TRIOXIDE; FOUR PARTS OF AN EXPOXIDE RESIN FORMED BY REACTING 45 PERCENT TO 70 PERCENT BIVALENT PHENOL WITH 20 PERCENT TO 43 PERCENT EPICHLOROHYDRINE AND ONE PART OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE DIAMINE, METAPHENYLENE DIAMINE, PIPERIDINE, TRIMETHYLENE DIAMINE, AND GUANIDINE.
Claim 2
Dependent Claim
148 words
A FLAME RESISTANT COMPOSITION COMPRISING BY WEIGHT ONE AND ONE-HALF PARTS OF A HIGHLY CHLORINATED POLYMERIZED POLYESTER RESIN PREPARED FROM HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID, A MIXTURE OF GLYCOLS SELECTED FROM THE GROUP CONSISTING OF ETHYLENE GLYCOL, DIETHYLENE GLYCOL, AND PROPYLENE GLYCOL, A COMPOUND SELECTED FROM THE GROUP CONSISTING OF MALEIC ANHYDRIDE AND FUMARIC ACID AND STYRENE, THE HEXACHLOROENDOMETHYLENE TETRAHYDROPHTHALIC ACID BEING PRESENT IN AN AMOUNT OF FROM 36 PERCENT TO 43 PERCENT BASED ON THE TOTAL WEIGHT OF THE POLYESTER COMPONENTS; ONE PART OF AN INORGANIC FLAME RETARDENT COMPOSED OF AN OXIDE SELECTED FROM THE GROUP CONSISTING OF BISMUTH OXIDE, ARSENIC OXIDE AND ANTIMONY TRIOXIDE; FOUR PARTS OF AN EXPOXIDE RESIN FORMED BY REACTING 45 PERCENT TO 70 PERCENT BIVALENT PHENOL WITH 20 PERCENT TO 43 PERCENT EPICHLOROHYDRINE AND ONE PART OF AN AMINE SELECTED FROM THE GROUP CONSISTING OF ETHYLENE DIAMINE, METAPHENYLENE DIAMINE, PIPERIDINE, TRIMETHYLENE DIAMINE, AND GUANIDINE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |