US3008909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapidly hardenable compositions of epoxy resins and polyamide resins
Assignee: BASF Schweiz AG
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Filing: 1958-10-08
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Granted: 1961-11-14
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Expires: 1978-10-08
Abstract
No abstract record available.
Inventors
- 👤 Ernst Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:00
CPC Classifications
C; C08; C08L; C08L77/00; C08L77/06; C08L77/08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/56; C08G59/60; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
HARDENABLE COMPOSITIONS WHICH COMPRISE (1) A 1,2-EPOXIDE RESIN, HAVING A 1,2-EPOXY EQUIVALENCY GREATER THAN 1.0, (2) A HARDENING AGENT THEREFORE CONSISTING OF A POLYAMIDE RESIN OBTAINED BY REACTING A POLYMERIC UNSATURATED HIGHER MOLECULAR WEIGHT FATTY ACID WITH AN ALIPHATIC POLYAMINE AND (3) A HARDENING ACCELERATOR CONSISTING OF N:N-DIMETHYL-1:3-PROPYLENE DIAMINE.
Claim 2
Dependent Claim
49 words
HARDENABLE COMPOSITIONS WHICH COMPRISE (1) A 1,2-EPOXIDE RESIN, HAVING A 1,2-EPOXY EQUIVALENCY GREATER THAN 1.0, (2) A HARDENING AGENT THEREFORE CONSISTING OF A POLYAMIDE RESIN OBTAINED BY REACTING A POLYMERIC UNSATURATED HIGHER MOLECULAR WEIGHT FATTY ACID WITH AN ALIPHATIC POLYAMINE AND (3) A HARDENING ACCELERATOR CONSISTING OF N:N-DIMETHYL-1:3-PROPYLENE DIAMINE.
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) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |