US2840540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethoxyline resin-hexachloroendomethylenetetrahydrophthalic anhydride compositions having long pot life
Assignee: General Electric Co
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Filing: 1954-11-10
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Granted: 1958-06-24
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Expires: 1974-11-10
Abstract
No abstract record available.
Inventors
- 👤 Rosenberg Joseph
- 👤 Graff Mary Anne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/02; C08K5/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCT OF (1) A COMPLEX EPOXIDE RESIN CONTAINING 1,2-EPOXIDE GOUPS AND COMPRISING A POLYETHER OF A POLYHYDRIC ORGANIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF POLYHYDRIC ALCOHOLS AND PHENOLS HAVING AT LEAST TWO PHENOLIC HYDROXY GROUPS AND (2) A COMPOSITION COMPRISING (A) A MATERIAL SELECTED FROM THE CLASS CONSISTING OF CHLORINATED BENZENE AND CHLORINATE POLYPHENYLS HAVING AT LEAST THREE CHLORINE ATOMS PER MOLECULE AND MIXTURES THEREOF AND (B) A MATERIAL SELECTED FROM THE CLASS CONSISTING OF HEXACHOLROENDOMETHYLENETETRAHYDROPHTHALIC ANHYDRIDE, AND HEXACHLOROENDOMETHYLENETETRAHYDROPHTHALIC ACID MIXTURES THEREOF, THE AMOUNT OF (A) BEING FROM ABOUT 20 TO 70 PERCENT, BY WEIGHT, OF (B), AND THE AMOUNT OF (B) BEING FROM ABOUT 5 TO 70 PERCENT, BY WEIGHT, OF SAID COMPLEX EPOXIDE RESIN.
Claim 2
Dependent Claim
124 words
A COMPOSITION OF MATTER COMPRISING THE REACTION PRODUCT OF (1) A COMPLEX EPOXIDE RESIN CONTAINING 1,2-EPOXIDE GOUPS AND COMPRISING A POLYETHER OF A POLYHYDRIC ORGANIC COMPOUND SELECTED FROM THE CLASS CONSISTING OF POLYHYDRIC ALCOHOLS AND PHENOLS HAVING AT LEAST TWO PHENOLIC HYDROXY GROUPS AND (2) A COMPOSITION COMPRISING (A) A MATERIAL SELECTED FROM THE CLASS CONSISTING OF CHLORINATED BENZENE AND CHLORINATE POLYPHENYLS HAVING AT LEAST THREE CHLORINE ATOMS PER MOLECULE AND MIXTURES THEREOF AND (B) A MATERIAL SELECTED FROM THE CLASS CONSISTING OF HEXACHOLROENDOMETHYLENETETRAHYDROPHTHALIC ANHYDRIDE, AND HEXACHLOROENDOMETHYLENETETRAHYDROPHTHALIC ACID MIXTURES THEREOF, THE AMOUNT OF (A) BEING FROM ABOUT 20 TO 70 PERCENT, BY WEIGHT, OF (B), AND THE AMOUNT OF (B) BEING FROM ABOUT 5 TO 70 PERCENT, BY WEIGHT, OF SAID COMPLEX EPOXIDE RESIN.
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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |