US3318960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condensation products of halogen substituted alkylene oxides with polyhydric alcohols in presence of an aluminum alcoholate
Assignee: Wyandotte Chemicals Corp
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Filing: 1963-08-14
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Granted: 1967-05-09
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Expires: 1983-08-14
Abstract
No abstract record available.
Inventors
- 👤 Mason H Earing
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:59
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/2645; C08G65/2654
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR THE PRODUCTION OF HALOGENOUS HYDROXY ETHERS WHICH COMPRISES REACTING TOGETHER AT A TEMPERATURE OF ABOUT 25 TO ABOUT 300 DEGREES C. (1) A POLYHYDRIC ALCOHOL INITIATING COMPOUND HAVING A MAXIMUM OF 8 HYDROXY GROUPS AND (2) A HALOGENOUS ALKYLENE OXIDE IN THE PRESENCE OF (3) A REACTION CATALYST COMPRISING AN ALUMINUM ALCOHOLATE OF AN ALCOHOL WHICH IS THE SAME AS SAID ALCOHOL INITIATING COMPOUND (1), SAID CATALYST (3) BEING PRESENT IN AN AMOUNT SUCH THAT THE WEIGHT OF THE ALUMINUM THEREIN IS AT LEAST 1% OF THE WEIGHT OF THE ALCOHOL INITIATING COMPOUND.
Claim 2
Dependent Claim
96 words
A PROCESS FOR THE PRODUCTION OF HALOGENOUS HYDROXY ETHERS WHICH COMPRISES REACTING TOGETHER AT A TEMPERATURE OF ABOUT 25 TO ABOUT 300 DEGREES C. (1) A POLYHYDRIC ALCOHOL INITIATING COMPOUND HAVING A MAXIMUM OF 8 HYDROXY GROUPS AND (2) A HALOGENOUS ALKYLENE OXIDE IN THE PRESENCE OF (3) A REACTION CATALYST COMPRISING AN ALUMINUM ALCOHOLATE OF AN ALCOHOL WHICH IS THE SAME AS SAID ALCOHOL INITIATING COMPOUND (1), SAID CATALYST (3) BEING PRESENT IN AN AMOUNT SUCH THAT THE WEIGHT OF THE ALUMINUM THEREIN IS AT LEAST 1% OF THE WEIGHT OF THE ALCOHOL INITIATING COMPOUND.
References Cited (Backward Citations)
CA645546A
Cited
US3135705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |