US2753319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast polyesterurethane rubbers
Assignee: Goodrich Corp
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Filing: 1952-07-18
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Granted: 1956-07-03
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Expires: 1972-07-18
Abstract
No abstract record available.
Inventors
- 👤 Charles E Brockway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:18
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A CURED POLYESTERURETHANE CASTING HAVING LOW HYSTERESIS COMPRISING THE REACTION PRODUCT OF AN ESSENTIALLY HYDROXYL TERMINATED POLYETHYLENE ADIPATE HAVING A MOLECULAR WEIGHT OF ABOUT 600 TO 2500 WITH 1.3 TO 1.6 MOLS OF A PHENYLENE DIISOCVANATE IN THE PRESENCE OF 10 TO 50 WEIGHT PARTS PER 100 WEIGHT PARTS OF POLYESTER OF AN ORGANIC PLASTICIZER, AND 0.1 TO 0.4 MOL OF A POLVFUNCTIONAL ALIPHATIC HYDROXYL CURING AGENT CONSISTING ESSENTIALLY OF A TRIOL, SAID AMOUNT OF PHENYLENE DIISOCYANATE BEING AT LEAST 0.2 MOL EXCESS OVER THE SUM OF SAID POLYETHYLENE ADIPATE AND SAID POLYFUNCTIONAL ALIPHATIC HYDROXYL CURING AGENT.
Claim 2
Dependent Claim
97 words
A CURED POLYESTERURETHANE CASTING HAVING LOW HYSTERESIS COMPRISING THE REACTION PRODUCT OF AN ESSENTIALLY HYDROXYL TERMINATED POLYETHYLENE ADIPATE HAVING A MOLECULAR WEIGHT OF ABOUT 600 TO 2500 WITH 1.3 TO 1.6 MOLS OF A PHENYLENE DIISOCVANATE IN THE PRESENCE OF 10 TO 50 WEIGHT PARTS PER 100 WEIGHT PARTS OF POLYESTER OF AN ORGANIC PLASTICIZER, AND 0.1 TO 0.4 MOL OF A POLVFUNCTIONAL ALIPHATIC HYDROXYL CURING AGENT CONSISTING ESSENTIALLY OF A TRIOL, SAID AMOUNT OF PHENYLENE DIISOCYANATE BEING AT LEAST 0.2 MOL EXCESS OVER THE SUM OF SAID POLYETHYLENE ADIPATE AND SAID POLYFUNCTIONAL ALIPHATIC HYDROXYL CURING AGENT.
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) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |