US2890204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin compositions
Assignee: Furane Plastics Inc
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Filing: 1956-02-13
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Granted: 1959-06-09
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Delmonte John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:56
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/182; C08G59/186
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A COMPOSITION OF MATTER ADAPTED FOR USE AS A CURING AGENT FOR POLGLYCIDAL EHTER OF 2,2 BIS (4-HYDROXY-PHENYL) PROPANE EPOXY RESINS, COMPRISING A PRE-REACTED MIXTURE OF FROM 2 TO 10 PARTS BY WEIGHT OF AN ACID ANHYDRIDE INGREDIENT SELECTED FROM THE GROUP CONSISTING OF HEXAHYDROPHTHALIC ACID ANHYDRIDE, TETRAHYDROPHTHALIC ACID ANHYDRIDE, PHTHALIC ACID ANHYDRIDE, MALEIC ANHYDRIDE ADDUCT OF CYCLOPENTADIENE, AND MALEIC ANHYDRIDE ADDUCT OF HEXACHLORPENTADIENE, AND ONE PART BY WEIGHT OF SAID EPOXY RESIN, SAID PREREACTED MIXTURE BEING LIQUID AT AMBIENT TEMERATURES.
Claim 2
Dependent Claim
81 words
A COMPOSITION OF MATTER ADAPTED FOR USE AS A CURING AGENT FOR POLGLYCIDAL EHTER OF 2,2 BIS (4-HYDROXY-PHENYL) PROPANE EPOXY RESINS, COMPRISING A PRE-REACTED MIXTURE OF FROM 2 TO 10 PARTS BY WEIGHT OF AN ACID ANHYDRIDE INGREDIENT SELECTED FROM THE GROUP CONSISTING OF HEXAHYDROPHTHALIC ACID ANHYDRIDE, TETRAHYDROPHTHALIC ACID ANHYDRIDE, PHTHALIC ACID ANHYDRIDE, MALEIC ANHYDRIDE ADDUCT OF CYCLOPENTADIENE, AND MALEIC ANHYDRIDE ADDUCT OF HEXACHLORPENTADIENE, AND ONE PART BY WEIGHT OF SAID EPOXY RESIN, SAID PREREACTED MIXTURE BEING LIQUID AT AMBIENT TEMERATURES.
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) | 1962-06-08 | 1962-12-08 | 1963-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-08 | 1966-12-08 | 1967-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-08 | 1970-12-08 | 1971-06-09 | $7700.00 | Window Closed / Lapsed |