Patent US3732286A successfully refreshed from Google Patents.
US3732286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions comprising an epoxy resin, dicyaniamide and an acylguanidine
Assignee: Goodrich Corp
•
Filing: 1971-11-01
•
Granted: 1973-05-08
•
Expires: 1991-11-01
Abstract
Abstract Mixtures storable at room temperature for periods up to 30 days, yet which cure quickly at moderately elevated temperatures and are suitable for the manufacture of shaped structures, coatings and adhesive bonds, have been prepared comprising an epoxy resin, dicyaniamide as a curing agent, and an acylguanidine as an accelerator for the cure.
Inventors
- 👤 P Son
- 👤 C Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:46
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4021
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
15 words
A composition as claimed in claim 1 in which the said accelerator is 1,1,3,3-tetramethyl-2-benzoyl guanidine.
Claim 2
Dependent Claim
15 words
A composition as claimed in claim 1 in which the said accelerator is 1,1,3,3-tetramethyl-2-acetyl guanidine.
Claim 3
Dependent Claim
15 words
A composition as claimed in claim 1 in which the said accelerator is 1,1,3,3-tetramethyl-2-(p-nitrobenzoyl) guanidine.
Claim 4
Dependent Claim
14 words
A composition as claimed in claim 1 in which the said accelerator is 1,1,3,3-tetramethyl-2-(p-chlorobenzoyl)guanidine.
References Cited (Backward Citations)
US3397156A
Cited
US3391113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |