US3027357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cross-linking carboxyl containing polymers
Assignee: Union Carbide Corp
•
Filing: 1958-07-15
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Granted: 1962-03-27
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Expires: 1978-07-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Ralph Stickle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:54
CPC Classifications
C; C08; C08L; C08L63/00; C08F; C08F20/00; C08F20/62; C08F22/00; C08F8/00; C08F8/14; C08K; C08K5/00; C08K5/04; C08K5/15; C08K5/151; C08K5/1515
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
AN IMPROVED METHOD FOR CROSSLINKING A THERMOPLASTIC RESINOUS POLYMER CONTAINING RECURRING PENDENT FREE CARBOXYLIC ACID RADICALS WHICH COMPRISES REACTING SAID POLYMER AT A TEMPERATURE BETWEEN ABOUT 25*C. AND 150*C. WITH A SUFFICIENT QUANTITY OF A COMPOUND HAVING AT LEAST TWO CYCLOHEXENE OXIDE GROUPS TO PROVIDE BETWEEN 0.1 AND 4.0 CYCLOHEXENE OXIDE OXIRANE OXYGEN GROUPS FOR EACH CARBOXYLIC ACID GROUP IN THE POLYMER.
Claim 2
Dependent Claim
62 words
AN IMPROVED METHOD FOR CROSSLINKING A THERMOPLASTIC RESINOUS POLYMER CONTAINING RECURRING PENDENT FREE CARBOXYLIC ACID RADICALS WHICH COMPRISES REACTING SAID POLYMER AT A TEMPERATURE BETWEEN ABOUT 25*C. AND 150*C. WITH A SUFFICIENT QUANTITY OF A COMPOUND HAVING AT LEAST TWO CYCLOHEXENE OXIDE GROUPS TO PROVIDE BETWEEN 0.1 AND 4.0 CYCLOHEXENE OXIDE OXIRANE OXYGEN GROUPS FOR EACH CARBOXYLIC ACID GROUP IN THE POLYMER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |