US2736702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous condensation product of formaldehyde, alkaline earth metal sulfide, and an alkylated monohydric phenol
Assignee: Gulf Oil Corp
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Filing: 1952-07-17
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Granted: 1956-02-28
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Expires: 1972-07-17
Abstract
No abstract record available.
Inventors
- 👤 Herschel G Smith
- 👤 Troy L Cantrell
- 👤 John G Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:22
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2493; C08; C08G; C08G8/00; C08G8/28; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/128; C10M2207/129; C10M2221/00; C10M2221/02; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/06; C10N2010/08; C10N2030/00; C10N2030/12; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
THE PROCESS OF PREPARING AN OIL SOLUBLE, METAL AND SULFUR CONTAINING, PERMANENTLY THERMOPLASTIC, RESINOUS CONDENSATION PRODUCT WHICH COMPRISES CONDENSING IN AN AQUEOUS MEDIUM REACTANTS CONSISTING ESSENTIALLY OF FORMALDEHYDE, AN ALKALINE EARTH METAL SULFIDE AND AN ALKYLATE MONOHYDRIC PHENOL HAVING AT LEAST ONE FREE REACTIVE POSITION IN THE NUCLEUS AND AT LEAST ONE MOL OF FORMALDEHYDE AT LEAST 4 CARBON ATOMS, AT LEAST ONE OL OF FORMALDEHYDE BEING EMPLOYED FOR EVERY TWO MOLS OF THE PHENOL, AND AT LEAST ONE EQUIVALENT OF ALKALINE EARTH METAL SULFIDE BEING EMPLOYED FOR EVERY TWO MOLS OF THE PHENOL, THE CONDENSATION BEING CONDUCTED TO AVOID ANY SUBSTANTIAL REACTION BETWEEN THE PHENOL AND FORMALDEHYDE IN THE ABSENCE OF THE ALKALINE EARTH METAL SULFIDE.
Claim 2
Dependent Claim
117 words
THE PROCESS OF PREPARING AN OIL SOLUBLE, METAL AND SULFUR CONTAINING, PERMANENTLY THERMOPLASTIC, RESINOUS CONDENSATION PRODUCT WHICH COMPRISES CONDENSING IN AN AQUEOUS MEDIUM REACTANTS CONSISTING ESSENTIALLY OF FORMALDEHYDE, AN ALKALINE EARTH METAL SULFIDE AND AN ALKYLATE MONOHYDRIC PHENOL HAVING AT LEAST ONE FREE REACTIVE POSITION IN THE NUCLEUS AND AT LEAST ONE MOL OF FORMALDEHYDE AT LEAST 4 CARBON ATOMS, AT LEAST ONE OL OF FORMALDEHYDE BEING EMPLOYED FOR EVERY TWO MOLS OF THE PHENOL, AND AT LEAST ONE EQUIVALENT OF ALKALINE EARTH METAL SULFIDE BEING EMPLOYED FOR EVERY TWO MOLS OF THE PHENOL, THE CONDENSATION BEING CONDUCTED TO AVOID ANY SUBSTANTIAL REACTION BETWEEN THE PHENOL AND FORMALDEHYDE IN THE ABSENCE OF THE ALKALINE EARTH METAL SULFIDE.
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) | 1959-02-27 | 1959-08-29 | 1960-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-02-27 | 1963-08-29 | 1964-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-02-27 | 1967-08-29 | 1968-02-28 | $7700.00 | Window Closed / Lapsed |