US2839489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making polyepoxide modified oxyalkylation derivatives, said derivatives obtained in turn by oxyalkylation of phenol-aldehyde resins and product resulting therefrom
Assignee: Baker Petrolite LLC
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Filing: 1957-01-22
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Granted: 1958-06-17
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Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Shen Kwan-Ting
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:46
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/08; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A TWO-STEP MANUFACTURING METHOD, THE FIRST STEP INVOLVING AN INTERMEDIATE (ABA) WHICH, IN TURN, REPRESENTS THE REACTION PRODUCTS OF (A) AN OXYALKYLATED PHENOLALDEHYDE RESIN CONTAINING A PLURALITY OF ACTIVE HYDROGEN ATOMS, AND (B) A PHENOLIC POLYEPOXIDE CONTAINING AT LEAST TWO 1,2-EPOXY RINGS FREE FROM REACTIVE FUNCTIONAL GROUPS OTHER THAN 1,2-EPOXY AND HYDROXYL GROUPS, AND COGENERICALLY ASSOCIATED COMPOUNDS FORMED IN THE PREPARATION OF SAID POLYEPOXIDES; SAID EPOXIDES BEING MONOMERS AND LOW MOLAL POLYMERS NOT EXCEEDING THE TETRAMERS; SAID EXPOXIDES BEING SELECTED FROM THE CLASS CONSISTING OF (A) COMPOUNDS WHERE THE PHENOLIC NUCLEI ARE DIRECTLY JOINED WITHOUT AN INTERVENING BRIDGE RADICAL, AND (B) COMPOUNDS CONTAINING A RADICAL IN WHICH TWO PHENOLIC NUCLEI ARE JOINED BY A DIVALENT RADICAL SELECTED FROM THE CLASS CONSISTING OF KETONE RESIDUES FORMED BY THE ELIMINATION OF THE KETONIC OXYGEN ATOM, AND ALDEHYDE RESIDUES OBTAINED BY THE ELIMINATION OF THE ALDEHYDE OXYGEN ATOM, THE DIVALENT RADICAL
Claim 2
Dependent Claim
148 words
A TWO-STEP MANUFACTURING METHOD, THE FIRST STEP INVOLVING AN INTERMEDIATE (ABA) WHICH, IN TURN, REPRESENTS THE REACTION PRODUCTS OF (A) AN OXYALKYLATED PHENOLALDEHYDE RESIN CONTAINING A PLURALITY OF ACTIVE HYDROGEN ATOMS, AND (B) A PHENOLIC POLYEPOXIDE CONTAINING AT LEAST TWO 1,2-EPOXY RINGS FREE FROM REACTIVE FUNCTIONAL GROUPS OTHER THAN 1,2-EPOXY AND HYDROXYL GROUPS, AND COGENERICALLY ASSOCIATED COMPOUNDS FORMED IN THE PREPARATION OF SAID POLYEPOXIDES; SAID EPOXIDES BEING MONOMERS AND LOW MOLAL POLYMERS NOT EXCEEDING THE TETRAMERS; SAID EXPOXIDES BEING SELECTED FROM THE CLASS CONSISTING OF (A) COMPOUNDS WHERE THE PHENOLIC NUCLEI ARE DIRECTLY JOINED WITHOUT AN INTERVENING BRIDGE RADICAL, AND (B) COMPOUNDS CONTAINING A RADICAL IN WHICH TWO PHENOLIC NUCLEI ARE JOINED BY A DIVALENT RADICAL SELECTED FROM THE CLASS CONSISTING OF KETONE RESIDUES FORMED BY THE ELIMINATION OF THE KETONIC OXYGEN ATOM, AND ALDEHYDE RESIDUES OBTAINED BY THE ELIMINATION OF THE ALDEHYDE OXYGEN ATOM, THE DIVALENT RADICAL
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |