US2864790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain polyepoxide treated amine-modified thermoplastic phenol-aldehyde resins and method of making same
Assignee: Baker Petrolite LLC
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Filing: 1956-06-15
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Granted: 1958-12-16
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Expires: 1976-06-15
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Shen Kwan-Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:56
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G14/00; C08G14/02; C08G14/04; C08G14/06; C08G59/00; C08G59/18; C08G59/20; C08G59/22; C08G59/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE METHOD OF FIRST (A) CONDENSING (A) A, FUSIBLE, NON-OXYGENATED ORGANIC SOLVENT-SOLUBLE, WATER-INSOLUBLE, PHEONOL-ALDEHYDE RESIN HAVING AN AVERAGE MOLECULAR WEIGHT CORRESPONDING TO AT LEAST 3 AND NOT OVER 6 PHENOLIC NUCLEI PER RESIN MOLECULE; SAID RESIN BEING DIFUNCTIONAL ONLY IN REGARD TO METHLOL-FORMING REACTIVITY; SAID RESIN BEING DERIVED BY REACTION BETWEEN A DIFUCNTIONAL MONOHYDRIC PHENOL AND AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND REACTIVE TOWARD SAID PHENOL; SAID RESIN BEING FORMED IN THE SUBSTANTIAL ABSENCE OF TRIFUNCTIONAL PHENOLS; SAID PHENOL BEING OF THE FORMULA
Claim 2
Independent Claim
86 words
THE METHOD OF FIRST (A) CONDENSING (A) A, FUSIBLE, NON-OXYGENATED ORGANIC SOLVENT-SOLUBLE, WATER-INSOLUBLE, PHEONOL-ALDEHYDE RESIN HAVING AN AVERAGE MOLECULAR WEIGHT CORRESPONDING TO AT LEAST 3 AND NOT OVER 6 PHENOLIC NUCLEI PER RESIN MOLECULE; SAID RESIN BEING DIFUNCTIONAL ONLY IN REGARD TO METHLOL-FORMING REACTIVITY; SAID RESIN BEING DERIVED BY REACTION BETWEEN A DIFUCNTIONAL MONOHYDRIC PHENOL AND AN ALDEHYDE HAVING NOT OVER 8 CARBON ATOMS AND REACTIVE TOWARD SAID PHENOL; SAID RESIN BEING FORMED IN THE SUBSTANTIAL ABSENCE OF TRIFUNCTIONAL PHENOLS; SAID PHENOL BEING OF THE FORMULA
References Cited (Backward Citations)
US2031557A
Cited
US2521912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |