US3144419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane from phenol-aldehyde resins containing phosphorus
Assignee: GE Chemicals Inc
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Filing: 1961-07-14
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Granted: 1964-08-11
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Expires: 1981-07-14
Abstract
No abstract record available.
Inventors
- 👤 Guttag Alvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:35
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/54; C08G18/546
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A POLYURETHANE PREPARED BY THE REACTION OF AN ORGANIC POLYISOCYANATE WITH A MEMBER OF THE GROUP CONSISTING OF (1) PHOSPHITE, (2) PHOSPHATE AND (3) THIOPHOSPHATE ESTERS OF OXALKYLATED PHENOL-ALDEHYDE RESIN, SAID RESIN BEING CHARACTERIZED BY ETHERIFICATION OF THE RESIN MOLECULE AT THE PHENOLIC OXYGEN THEREOF BY A PLURALITY OF DIVALENT OXYALKYLENE RADICALS HAVING THE FORMULA (R1O)N IN WHICH R1 IS A MEMBER OF THE GROUP CONSISTING OF THEYLENE RADICALS, PROPYLENE RADICALS, BUTYLENE RADICALS, HYDROXYPROPYLENE AND HYDROXYBUTYLENE RADICALS, N IS AN INTEGER FROM 1 TO 20, THE PHOSPHORUS BEING ATTACHED TO A TERMINAL OXYGEN OF AT LEAST ONE OF SAID DIVALENT RADICALS, THE REMAINDER OF SAID DIVALENT RADICALS TERMINATING IN HYDROXYL HYDROGEN.
Claim 2
Dependent Claim
111 words
A POLYURETHANE PREPARED BY THE REACTION OF AN ORGANIC POLYISOCYANATE WITH A MEMBER OF THE GROUP CONSISTING OF (1) PHOSPHITE, (2) PHOSPHATE AND (3) THIOPHOSPHATE ESTERS OF OXALKYLATED PHENOL-ALDEHYDE RESIN, SAID RESIN BEING CHARACTERIZED BY ETHERIFICATION OF THE RESIN MOLECULE AT THE PHENOLIC OXYGEN THEREOF BY A PLURALITY OF DIVALENT OXYALKYLENE RADICALS HAVING THE FORMULA (R1O)N IN WHICH R1 IS A MEMBER OF THE GROUP CONSISTING OF THEYLENE RADICALS, PROPYLENE RADICALS, BUTYLENE RADICALS, HYDROXYPROPYLENE AND HYDROXYBUTYLENE RADICALS, N IS AN INTEGER FROM 1 TO 20, THE PHOSPHORUS BEING ATTACHED TO A TERMINAL OXYGEN OF AT LEAST ONE OF SAID DIVALENT RADICALS, THE REMAINDER OF SAID DIVALENT RADICALS TERMINATING IN HYDROXYL HYDROGEN.
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |