US3378600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-toxic epoxy coating containing a polyketimine curing agent
Assignee: Pfaudler Inc
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Filing: 1964-04-17
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Granted: 1968-04-16
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Expires: 1984-04-17
Abstract
No abstract record available.
Inventors
- 👤 William C Hodges
- 👤 Jr Harold R Harlan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:01
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4042
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A BLUSH-RESISTANT MOISTURE-SENSITIVE CURING AGENT FOR COATINGS OF GLYCIDYL POLYETHERS OF POLYHYDRIC ALCOHOLS OR PHENOLS COMPRISING AS THE ESSENTIAL CURING INGREDIENT ONE PART BY WEIGHT OF AN ALKYL KETONE POLYKETIMINE OF A POLYAMINE CAPABLE OF RELEASING A CURING AMOUNT OF AMINE ON EXPOSURE TO MOISTURE ADDUCTED UNDER MOISTUREFREE CONDITIONS AT ABOUT 160* TO 170*F. WITH ABOUT 1/2 TO 2/3 PART BY WEIGHT OF SAID POLYETHER.
Claim 2
Dependent Claim
65 words
A BLUSH-RESISTANT MOISTURE-SENSITIVE CURING AGENT FOR COATINGS OF GLYCIDYL POLYETHERS OF POLYHYDRIC ALCOHOLS OR PHENOLS COMPRISING AS THE ESSENTIAL CURING INGREDIENT ONE PART BY WEIGHT OF AN ALKYL KETONE POLYKETIMINE OF A POLYAMINE CAPABLE OF RELEASING A CURING AMOUNT OF AMINE ON EXPOSURE TO MOISTURE ADDUCTED UNDER MOISTUREFREE CONDITIONS AT ABOUT 160* TO 170*F. WITH ABOUT 1/2 TO 2/3 PART BY WEIGHT OF SAID POLYETHER.
References Cited (Backward Citations)
US2651589A
Cited
FR1277643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-16 | 1971-10-16 | 1972-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-16 | 1975-10-16 | 1976-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-16 | 1979-10-16 | 1980-04-16 | $7700.00 | Window Closed / Lapsed |