US3594340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin esters and process of preparation
Assignee: Pennsylvania Industrial Chemical Corp
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Filing: 1968-06-24
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Granted: 1971-07-20
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Expires: 1988-06-24
Abstract
Abstract TERPENE EPOXY RESIN ESTER SOLUTION WHICH IS NON-PHOTOCHEMICALLY REACTIVE AND A PROCESS FOR PREPARING SUCH A SOLUTION BY POLYMERIZING A MIXTURE OF LIQUID EPOXY RESIN AND A TERPENE PHENOLIC COMPOUND DISSOLVED IN A HYDROCARBON SOLVENT AND THEREAFTER ESTERIFYING THE PRODUCT WITH A MONOCARBOXYLIC ACID.
Inventors
- 👤 Samuel D Hollis
- 👤 Philip E Winston Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:25
CPC Classifications
C; C09; C09J; C09J161/00; C09J161/04; C09J161/06; C08; C08G; C08G16/00; C08G16/02; C08G16/025; C08G16/0256; C08G16/0262; C08G59/00; C08G59/14; C08G59/1433; C08G59/1438; C08G8/00; C08G8/04; C08G8/08; C08G8/10; C08L; C08L61/00; C08L61/20; C08L61/22; C08L61/24; C08L97/00; C08L97/02; C09J161/20; C09J161/22; C09J161/24; C08L2666/00; C08L2666/02; C08L2666/26; C08L91/00; C08L91/06; C08L91/08; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |