US3164572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blended glycol liquid polyurethane
Assignee: Wyandotte Chemicals Corp
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Filing: 1961-04-06
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Granted: 1965-01-05
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Expires: 1981-04-06
Abstract
No abstract record available.
Inventors
- 👤 Seymour L Axelrood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:43
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/65; C08G18/66; C08G18/6666; C08G18/667; C08G18/6674; C08G18/08; C08G18/10; C08G18/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
A LIQUID, CURABLE POLYURETHANE CASTING COMPOSITION OBTAINED BY HEATING TO A TEMPERATURE OF ABOUT 60* TO ABOUT 160*C. FOR A PERIOD OF ABOUT 1 TO 24 HOURS (A) 1.0 MOLAR PROPORTION OF A POLYPROPYLENE ETHER GLYCOL HAVING A MOLECULAR WEIGHT OF FROM ABOUT 1,000 TO 2,500, (B) 0.2 TO 10 MOLAR PROPORTIONS OF A DIOL HAVING A MOLECULAR WEIGHT IN THE RANGE BETWEEN ABOUT 76 TO ABOUT 1,000 AND HAVING THE GENERAL FORMULA HO(GO)NH WHEREIN G IS A DIVALENT HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC HYDROCARBON RADICALS HAVING 3 TO 4 CARBON ATOMS AND ISOPROPYLIDENE-BISCYCLOHEXYL RADICAL, WHEREIN N IS 1 WHEN G IS ISOPROPYLIDENE-BIS-CYCLOHEXYL AND N IS FROM 1 TO 18 WHEN G IS A DIVALENT SATURATED ALPHATIC HYDROCARBON RADICAL HAVING 2 TO 4 CARBON ATOMS, AND (C) 2.4 TO 22 MOLAR PROPORTIONS OF AN ORGANIC DIISOCYANATE, WITH THE PROVISO THAT THE RATIO OF THE MOLECULAR WEIGHT OF (A) TO THE MOLECULAR WEIGHT OF (B) IS AT LEAST 2.0, THE AVERAGE MOLECULAR WEIGHT OF (A) AND (B) COMBINED IS IN THE RANGE BETWEEN ABOUT 500 TO ABOUT 1,750, AND THE NCO/OH RATIO IS IN THE RANGE BETWEEN 2 TO 2.5.
Claim 2
Dependent Claim
194 words
A LIQUID, CURABLE POLYURETHANE CASTING COMPOSITION OBTAINED BY HEATING TO A TEMPERATURE OF ABOUT 60* TO ABOUT 160*C. FOR A PERIOD OF ABOUT 1 TO 24 HOURS (A) 1.0 MOLAR PROPORTION OF A POLYPROPYLENE ETHER GLYCOL HAVING A MOLECULAR WEIGHT OF FROM ABOUT 1,000 TO 2,500, (B) 0.2 TO 10 MOLAR PROPORTIONS OF A DIOL HAVING A MOLECULAR WEIGHT IN THE RANGE BETWEEN ABOUT 76 TO ABOUT 1,000 AND HAVING THE GENERAL FORMULA HO(GO)NH WHEREIN G IS A DIVALENT HYDROCARBON RADICAL SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC HYDROCARBON RADICALS HAVING 3 TO 4 CARBON ATOMS AND ISOPROPYLIDENE-BISCYCLOHEXYL RADICAL, WHEREIN N IS 1 WHEN G IS ISOPROPYLIDENE-BIS-CYCLOHEXYL AND N IS FROM 1 TO 18 WHEN G IS A DIVALENT SATURATED ALPHATIC HYDROCARBON RADICAL HAVING 2 TO 4 CARBON ATOMS, AND (C) 2.4 TO 22 MOLAR PROPORTIONS OF AN ORGANIC DIISOCYANATE, WITH THE PROVISO THAT THE RATIO OF THE MOLECULAR WEIGHT OF (A) TO THE MOLECULAR WEIGHT OF (B) IS AT LEAST 2.0, THE AVERAGE MOLECULAR WEIGHT OF (A) AND (B) COMBINED IS IN THE RANGE BETWEEN ABOUT 500 TO ABOUT 1,750, AND THE NCO/OH RATIO IS IN THE RANGE BETWEEN 2 TO 2.5.
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) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |