US2906726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color stabilization of resins with alkali
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1954-09-28
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Granted: 1959-09-29
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Expires: 1974-09-28
Abstract
No abstract record available.
Inventors
- 👤 Gerald William P Fitz
- 👤 Joseph F Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:56
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHOD FOR MAINTAING THE COLOR STABILITY OF A RESIN IN STORAGE IN THE PRESENCE OF IRON WHEREIN SAID RESIN IS AN UNSATURATED HYDROCARBON RESIN, PREPARED BY THE POLYMERIZATION OF A STEAM-CRACKED PETROLEUM DISTILLATE IN THE PRESENCE OF A FRIEDDEL-CRAFTS CATALYST, IN SOLUTION WITH A LIQUID SOLVENT CONSISTING ESSENTIALLY OF A HYDROCARBON WHICH COMPRISES STORING SAID SOLUTION WITH FROM 0.2 TO 10.0 WT. PERCENT OF A POWDERED SOLID ALKALI AND LEAVING SAID RESIN WITH SAID ALKALI THROUGHOUT SAID STORAGE.
Claim 2
Independent Claim
79 words
A METHOD FOR MAINTAING THE COLOR STABILITY OF A RESIN IN STORAGE IN THE PRESENCE OF IRON WHEREIN SAID RESIN IS AN UNSATURATED HYDROCARBON RESIN, PREPARED BY THE POLYMERIZATION OF A STEAM-CRACKED PETROLEUM DISTILLATE IN THE PRESENCE OF A FRIEDDEL-CRAFTS CATALYST, IN SOLUTION WITH A LIQUID SOLVENT CONSISTING ESSENTIALLY OF A HYDROCARBON WHICH COMPRISES STORING SAID SOLUTION WITH FROM 0.2 TO 10.0 WT. PERCENT OF A POWDERED SOLID ALKALI AND LEAVING SAID RESIN WITH SAID ALKALI THROUGHOUT SAID STORAGE.
References Cited (Backward Citations)
US1982708A
Cited
US2234660A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |