US4487966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3-Aminomethyl-1-(3-aminopropyl-1-methyl)-4-methylcyclohexane, a process for its preparation and its use
Assignee: Bayer AG
•
Filing: 1983-07-15
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Granted: 1984-12-11
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Expires: 2003-07-15
Abstract
Abstract 3-Aminomethyl-1-(3-aminopropyl-1-methyl)-4-methylcyclohexane and a process for the preparation of this new compound, which uses limonene and/or monohydroformylation products of limonene as starting substances and proceeds via a dihydroformylation product of limonene. The new compound is useful as a corrosion inhibitor, as a crosslinking agent for epoxide resins and as a chain lengthening agent for NCO prepolymers.
Inventors
- 👤 Paul Fiedler
- 👤 Rudolf Braden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:36
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C07; C07C; C07C45/00; C07C45/49; C07C45/50; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08G59/00; C08G59/18; C08G59/40; C08G59/50; C08G59/5026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
3-Aminomethyl-1-(3-aminopropyl-1-methyl)-4-methylcyclohexane.
Claim 2
Dependent Claim
1 words
3-Aminomethyl-1-(3-aminopropyl-1-methyl)-4-methylcyclohexane.
References Cited (Backward Citations)
US3565954A
Cited
US3597438A
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US4009209A
Cited
US4020059A
Cited
US4101578A
Cited
US4207260A
Cited
US4317932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-11 | 1988-06-11 | 1988-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-11 | 1992-06-11 | 1992-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-11 | 1996-06-11 | 1996-12-11 | $7700.00 | Window Closed / Lapsed |