US3054816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclic alkoxy- and phenoxy-aluminum oxide trimers and process for making same
Assignee: Agrashell Inc
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Filing: 1958-06-30
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Granted: 1962-09-18
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Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Rinse Jacobus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:29
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/06; C07F5/069
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
88 words
A PROCESS FOR THE PRODUCTIO OF CYCLIC TRIMER ALUMINA R-OXIDES IN WHICH R IS A HYDROCARBON GROUP WHICH COMPRISES, INTRODUCING STEAM IN SUBSTANTIALLY EQUIMOLECULAR AMOUNTS , INTO AN ALUMINUM ALKOXIDE OF AN ALCOHOL OF 2-5 CARBON ATOMS IN THE PRESENCE OF AN ALCOHOL AT AN ELEVATED TEMPERATURE AT WHICH CONDENSATION REACTION OCCURS AND LIBERATED ALCOHOL VAPORIZES OFF AS THE REACTION PROCEEDS, AND CONTINUING THE HEATING AT A TEMPERATURE AT WHICH AND UNTIL ABOUT 2 MOLS OF ALCOHOL ARE LIBERATED AND VAPORIZED OFF PER MOL OF ALUMINUM COMPOUND USED.
Claim 2
Dependent Claim
88 words
A PROCESS FOR THE PRODUCTIO OF CYCLIC TRIMER ALUMINA R-OXIDES IN WHICH R IS A HYDROCARBON GROUP WHICH COMPRISES, INTRODUCING STEAM IN SUBSTANTIALLY EQUIMOLECULAR AMOUNTS , INTO AN ALUMINUM ALKOXIDE OF AN ALCOHOL OF 2-5 CARBON ATOMS IN THE PRESENCE OF AN ALCOHOL AT AN ELEVATED TEMPERATURE AT WHICH CONDENSATION REACTION OCCURS AND LIBERATED ALCOHOL VAPORIZES OFF AS THE REACTION PROCEEDS, AND CONTINUING THE HEATING AT A TEMPERATURE AT WHICH AND UNTIL ABOUT 2 MOLS OF ALCOHOL ARE LIBERATED AND VAPORIZED OFF PER MOL OF ALUMINUM COMPOUND USED.
Claim 3
Dependent Claim
7 words
CYCLIC ALUMINUM OXIDE POLYMERS OF THE FORMULA
Claim 4
Dependent Claim
7 words
CYCLIC ALUMINUM OXIDE POLYMERS OF THE FORMULA
References Cited (Backward Citations)
US2744074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-17 | 1966-03-19 | 1966-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-17 | 1970-03-19 | 1970-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-17 | 1974-03-19 | 1974-09-18 | $7700.00 | Window Closed / Lapsed |