Patent US3427259A successfully refreshed from Google Patents.
US3427259A
Expired / Lapsed
US
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Polymerizing of oxirane monoepoxides in the presence of a reaction product of an organometallic compound and a polyoxyalkylene glycol
Assignee: Union Carbide Corp
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Filing: 1963-10-16
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Granted: 1969-02-11
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Expires: 1983-10-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth T Garty
- 👤 Thomas B Gibb Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:23
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
62 words
METHOD FOR THE PRODUCTION OF A POLYMER OF AN EPOXIDE COMPOUND WHICH COMPRISES POLYMERIZING A MONOMERIC OXIRANE MONOEPOXIDE WHICH IS FREE OF ESTER,, ACID, AMINO AND ALDEHYDE GROUPS, IN THE PRESENCE OF THE REACTION PRODUCT OF A MIXTURE CONSISTING OF AT LEAST ABOUT 0.01 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SAID OXIRANE MONOEPOXIDE, OF AN ORGANOMETALLIC COMPOUND HAVING THE FORMULA:
Claim 2
Dependent Claim
62 words
METHOD FOR THE PRODUCTION OF A POLYMER OF AN EPOXIDE COMPOUND WHICH COMPRISES POLYMERIZING A MONOMERIC OXIRANE MONOEPOXIDE WHICH IS FREE OF ESTER,, ACID, AMINO AND ALDEHYDE GROUPS, IN THE PRESENCE OF THE REACTION PRODUCT OF A MIXTURE CONSISTING OF AT LEAST ABOUT 0.01 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF SAID OXIRANE MONOEPOXIDE, OF AN ORGANOMETALLIC COMPOUND HAVING THE FORMULA:
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) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |