US3015636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur curing of polyether-urethane rubbers
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1957-10-24
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Granted: 1962-01-02
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Expires: 1977-10-24
Abstract
No abstract record available.
Inventors
- 👤 Otto C Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:20
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3203; C08G18/36; C08G18/67; C08G18/675; C08G18/83; C08G18/87
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A SULFUR CURABLE POLYETHER-URETHANE COMPOSITION COMPRISING THE REACTION PRODUCT OF (1) ONE MOLE OF A SATURATED POLY(ALKYLENE ETHER) GLYCOL HAVING A MOLECULAR WEIGHT OF ABOVE 600, (2) FROM ABOUT 0.9 TO 1.5 MOLES OF AN ORGANIC PLYISOCYANATE, AND (3) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC GLYCOL AND A CYCLOALIPHATIC GLYCOL AND CONSISTING OF CARBON, HYROGEN AND OXYGEN AND HAVING AT LEAST ONE CARBON-TO-CARBON DOUBLE BOND, SAID DOUBLE BOND BEING POSITIONED IN THE CHAIN JOINING THE HYDROXYL RADICALS OF SAID MATERIAL, AT LEAST ONE HYDROCARBON GROUP OF AT LEAST 5 CONSECUTIVE SATURATED ALIPHTIC CARBON ATOMS POSITIONED IN SAID CHAIN JOINING SAID HYDROXYL RADICALS, AND ONE OF THE CARBON ATOMS OF SAID DOUBLE BOND BEING ATTACHED DIRECTLY TO A CARBON ATOM OF SAID GROUP, AND THE AMOUNT OF SAID MATERIAL BEING FROM 10 TO 60 MOLE PERCENT OF THE TOTAL MOLES OF SAID POLY(ALKYLENE ETHER) GLYCOL AND SAID MATERIAL.
Claim 2
Dependent Claim
151 words
A SULFUR CURABLE POLYETHER-URETHANE COMPOSITION COMPRISING THE REACTION PRODUCT OF (1) ONE MOLE OF A SATURATED POLY(ALKYLENE ETHER) GLYCOL HAVING A MOLECULAR WEIGHT OF ABOVE 600, (2) FROM ABOUT 0.9 TO 1.5 MOLES OF AN ORGANIC PLYISOCYANATE, AND (3) A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AN ALIPHATIC GLYCOL AND A CYCLOALIPHATIC GLYCOL AND CONSISTING OF CARBON, HYROGEN AND OXYGEN AND HAVING AT LEAST ONE CARBON-TO-CARBON DOUBLE BOND, SAID DOUBLE BOND BEING POSITIONED IN THE CHAIN JOINING THE HYDROXYL RADICALS OF SAID MATERIAL, AT LEAST ONE HYDROCARBON GROUP OF AT LEAST 5 CONSECUTIVE SATURATED ALIPHTIC CARBON ATOMS POSITIONED IN SAID CHAIN JOINING SAID HYDROXYL RADICALS, AND ONE OF THE CARBON ATOMS OF SAID DOUBLE BOND BEING ATTACHED DIRECTLY TO A CARBON ATOM OF SAID GROUP, AND THE AMOUNT OF SAID MATERIAL BEING FROM 10 TO 60 MOLE PERCENT OF THE TOTAL MOLES OF SAID POLY(ALKYLENE ETHER) GLYCOL AND SAID MATERIAL.
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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |