US3349060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyepoxide carbocyclic diamine compositions
Assignee: Bakelite Ltd
•
Filing: 1964-02-20
•
Granted: 1967-10-24
•
Expires: 1984-02-20
Abstract
No abstract record available.
Inventors
- 👤 Lewis Reginald Norman
- 👤 Horne Ian Raoul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:03
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A POLYEPOXIDE COMPOSITION FORMED BY RECTING A POLYEPOXIDE, WHICH POLYEPOXIDE POSSESSES AT LEAST TWO TERMINAL OXIRANCE EPOXIDE GROUPS PER AVERAGE MOLECULE, WTIH 30% TO 45% OF THE STOICHIOMETRIC EQUIVALENT OF A CARBOCYCLIC DIAMINE, WHICH DIAMINE CONTAINS TWO ISOLATED CARBOCYCLIC RADICALS EACH HAVING 6 CARBON ATOMS LINKED BY A SHORT CHAIN BIVALENT BRIDGE RADICAL SELECTED FROM THE GROUP CONSISTING OF -(CH2EN-, -NH-, -O-, -S-, OR -SO2-, EACH OF SAID TWO CARBOCYCLIC RADICALS HAVING ONE AMINO GROUP, THE DIAMINE CONTAINING AT LEAST THREE REACTIVE HYDROGEN ATOMS ATTACHED TO THE NITROGEN ATOMS IN THE AMINO GROUPS, WHICH PROPORTION OF THE CARBOCYCLIC DIAMINE IS SUCH THAT THE PRODUCT OF THE REACTION IS CAPABLE OF BEING DISSOLVED IN A SOLVENT FOR THE COMPOSITION AND IS CAPABLE OF BEIN GCURED TO FORM AN INFUSIBLE AND INSOLUBLE PRODUCT.
Claim 2
Dependent Claim
131 words
A POLYEPOXIDE COMPOSITION FORMED BY RECTING A POLYEPOXIDE, WHICH POLYEPOXIDE POSSESSES AT LEAST TWO TERMINAL OXIRANCE EPOXIDE GROUPS PER AVERAGE MOLECULE, WTIH 30% TO 45% OF THE STOICHIOMETRIC EQUIVALENT OF A CARBOCYCLIC DIAMINE, WHICH DIAMINE CONTAINS TWO ISOLATED CARBOCYCLIC RADICALS EACH HAVING 6 CARBON ATOMS LINKED BY A SHORT CHAIN BIVALENT BRIDGE RADICAL SELECTED FROM THE GROUP CONSISTING OF -(CH2EN-, -NH-, -O-, -S-, OR -SO2-, EACH OF SAID TWO CARBOCYCLIC RADICALS HAVING ONE AMINO GROUP, THE DIAMINE CONTAINING AT LEAST THREE REACTIVE HYDROGEN ATOMS ATTACHED TO THE NITROGEN ATOMS IN THE AMINO GROUPS, WHICH PROPORTION OF THE CARBOCYCLIC DIAMINE IS SUCH THAT THE PRODUCT OF THE REACTION IS CAPABLE OF BEING DISSOLVED IN A SOLVENT FOR THE COMPOSITION AND IS CAPABLE OF BEIN GCURED TO FORM AN INFUSIBLE AND INSOLUBLE PRODUCT.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |