US3062770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition consisting essentially of (alpha) a reaction product of trimellitic anhydride and alkylene oxide and (beta) an epoxy resin
Assignee: Standard Oil Co
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Filing: 1960-03-21
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Granted: 1962-11-06
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Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Arthur G Hirsch
- 👤 Benjamin A Bolton
- 👤 Thomas A Shelby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
C; C08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A COMPOSITION ADAPTED FOR THE PRODUCTION OF A THERMOSET RESIN, WHICH COMPOSITION CONSISTS ESSENTIALLY OF (A) A RESIN THAT IS THE CONDENSATION REACTION PRODUCT OF TRIMELLITIC ANHYDRIDE AND ALKYLENE OXIDE HAVING FROM 2-4 CARBON ATOMS IN A MOLE RATIO OF SAID OXIDE TO SAID ANHYDRIDE OF ABOUT 1,8-2.7:1 AND CHARACTERIZED BY AN ACID NO. FROM ABOUT 30 TO ABOUT 225 AND (B) AN EPOXY INTERMEDIATE RESIN REACTION PRODUCT OF EPICHLOROHYDRIN AND A BISPHENOL AND WHEREIN SAID RESIN AND SAID EPOXY ARE PRESENT IN A WEIGHT RATIO FROM 8:2 TO 4:6 RESPECTIVELY.
Claim 2
Dependent Claim
91 words
A COMPOSITION ADAPTED FOR THE PRODUCTION OF A THERMOSET RESIN, WHICH COMPOSITION CONSISTS ESSENTIALLY OF (A) A RESIN THAT IS THE CONDENSATION REACTION PRODUCT OF TRIMELLITIC ANHYDRIDE AND ALKYLENE OXIDE HAVING FROM 2-4 CARBON ATOMS IN A MOLE RATIO OF SAID OXIDE TO SAID ANHYDRIDE OF ABOUT 1,8-2.7:1 AND CHARACTERIZED BY AN ACID NO. FROM ABOUT 30 TO ABOUT 225 AND (B) AN EPOXY INTERMEDIATE RESIN REACTION PRODUCT OF EPICHLOROHYDRIN AND A BISPHENOL AND WHEREIN SAID RESIN AND SAID EPOXY ARE PRESENT IN A WEIGHT RATIO FROM 8:2 TO 4:6 RESPECTIVELY.
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) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |