US3049514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ordered hydroxy-terminated tertiarynitrogen-containing polyether-based urethane compositions
Assignee: Wyandotte Chemicals Corp
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Filing: 1959-03-26
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Granted: 1962-08-14
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Expires: 1979-03-26
Abstract
No abstract record available.
Inventors
- 👤 Damusis Adolfas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:38
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/08; C08G18/10; C08G18/28; C08G18/40; C08G18/48; C08G18/50; C08G18/5021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN ORDERED HYDROXY-TERMINATED URETHANE COMPOSITION PRODUCED SEQUENTIALLY BY FIRST MIXING AND REACTING TOGETHER ABOUT ONE MOLAR PROPORTION OF POLYPROPYLENEETHER GLYCOL (A) WITH ABOUT TWO MOLAR PROPORTIONS OF ARYLENE DIISOCYANATE (C) SELECTED FROM THE GROUP CONSISTING OF PHENYLENE DIISOCYANATE, TOLYLENE DIISOCYANATE, AND DIPHENYLMETHANE-4,4''-DIISOCYANATE, TO PRODUCE AN ISOCYANATE-TERMINATED POLYPROPYLENEETHER GLYCOL URETHANE, AND THEN MIXING AND REACTING ABOUT ONE MOLAR PROPORTION OF THE THUS-FORMED ISOCYANATE-TERMINATED URETHANE WITH ABOUT TWO MOLAR PROPORTIONS OF TERIARY-NITROGEN-CONTAINING POLYOL (B), SAID TERTIARY-NITROGEN-CONTAINING POLYOL (B) BEING SELECTED FROM THE GROUP CONSISTING OF POLYOLS OF THE FORMULAE:
Claim 2
Dependent Claim
87 words
AN ORDERED HYDROXY-TERMINATED URETHANE COMPOSITION PRODUCED SEQUENTIALLY BY FIRST MIXING AND REACTING TOGETHER ABOUT ONE MOLAR PROPORTION OF POLYPROPYLENEETHER GLYCOL (A) WITH ABOUT TWO MOLAR PROPORTIONS OF ARYLENE DIISOCYANATE (C) SELECTED FROM THE GROUP CONSISTING OF PHENYLENE DIISOCYANATE, TOLYLENE DIISOCYANATE, AND DIPHENYLMETHANE-4,4''-DIISOCYANATE, TO PRODUCE AN ISOCYANATE-TERMINATED POLYPROPYLENEETHER GLYCOL URETHANE, AND THEN MIXING AND REACTING ABOUT ONE MOLAR PROPORTION OF THE THUS-FORMED ISOCYANATE-TERMINATED URETHANE WITH ABOUT TWO MOLAR PROPORTIONS OF TERIARY-NITROGEN-CONTAINING POLYOL (B), SAID TERTIARY-NITROGEN-CONTAINING POLYOL (B) BEING SELECTED FROM THE GROUP CONSISTING OF POLYOLS OF THE FORMULAE:
References Cited (Backward Citations)
US2814605A
Cited
US2915496A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |