US3304269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polymers of epoxide compounds using catalytic product of group viii metal carbonyl with an alkyl aluminum compound
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-07-22
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Granted: 1967-02-14
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Wolfram R Kroll
- 👤 Malatesta Alberto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:48
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A PROCESS FOR POLYMERIZING AN ALKYLENE OXIDE COMPOUND CONTAINING AN OXIRANE GROUP WHICH COMPRISES: (A) CONTACTING SAID ALKYLENE OXIDE COMPOUND WITH A CATALYST IN THE RATIO OF ABOUT 1 TO 20 GRAMS OF CATALYST PER 100 GRAMS OF ALKYLENE OXIDE COMPOUND, SAID CATALYST COMPRISING THE REACTION PRODUCT OF (1) A GROUP VIII METAL CARBONYL COMPOUND, WITH (2) AN ALKYL ALUMINUM COMPOUND, THE MOLE RATIO OF METAL CARBONYL TO ALKYL ALUMINUM BEING IN THE RANGE OF .05 TO 1 AND (B) RECOVERING THE SOLID POLYME PRODUCT.
Claim 2
Dependent Claim
85 words
A PROCESS FOR POLYMERIZING AN ALKYLENE OXIDE COMPOUND CONTAINING AN OXIRANE GROUP WHICH COMPRISES: (A) CONTACTING SAID ALKYLENE OXIDE COMPOUND WITH A CATALYST IN THE RATIO OF ABOUT 1 TO 20 GRAMS OF CATALYST PER 100 GRAMS OF ALKYLENE OXIDE COMPOUND, SAID CATALYST COMPRISING THE REACTION PRODUCT OF (1) A GROUP VIII METAL CARBONYL COMPOUND, WITH (2) AN ALKYL ALUMINUM COMPOUND, THE MOLE RATIO OF METAL CARBONYL TO ALKYL ALUMINUM BEING IN THE RANGE OF .05 TO 1 AND (B) RECOVERING THE SOLID POLYME PRODUCT.
References Cited (Backward Citations)
US3247270A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |