US3022322A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of epoxidized polybutadiene
Assignee: Phillips Petroleum Co
•
Filing: 1956-09-28
•
Granted: 1962-02-20
•
Expires: 1976-09-28
Abstract
No abstract record available.
Inventors
- 👤 Charles E Wheelock
- 👤 Peter J Canterino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:58
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/02; C08G59/027; C08C; C08C19/00; C08C19/04; C08C19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS FOR PRODUCING EPOXIDIZED LIQUID POLYBUTADIENE COMPRISING DISSOLVING LOQUID POLYBUTADIENE IN AN INERT SOLVENT; REACTING SAID POLYMER WITH AN ORGANIC PERACID FORMED IN SITU BY ADDING TO THE SOLUTION OF SAID POLYMER AN ORGANIC ACID CONTAINING TWO TO EIGHT CARBON ATOMS AT A TEMPERATURE OF 0 TO 80*C., THE AMOUNT OF ORGANIC ACID BEING SUFFICIENT TO PROVIDE 0.2 TO 2 EQUIVALENTS PER OLEFINIC LINKAGE IN SAID LIQUID POLYBUTADIENE, HYDROGEN PEROXIDE, AND AN ACID CATALYST SELECTED FROM THE GROUP CONSISTING OF SULFURIC ACID, PHOSPHORIC ACID, TRICHLOROACETIC ACID AND NUCLEAR SULFONIC CATION EXCHANGE RESINS; SEPARATING THE ORGANIC PHASE FROM THE AQUEOUS PHASES AND REMOVING THE SOLVENT FROM THE ORGANIC PHASE THEREBY OBTAINING RESULTING EPOXIDIZED POLYMER CONTAINING 0.08 TO 0.7 EPOXY OXYGEN ATOM PER DOUBLE BOND ORIGINALLY PRESENT IN SAID POLYMER.
Claim 2
Dependent Claim
129 words
A PROCESS FOR PRODUCING EPOXIDIZED LIQUID POLYBUTADIENE COMPRISING DISSOLVING LOQUID POLYBUTADIENE IN AN INERT SOLVENT; REACTING SAID POLYMER WITH AN ORGANIC PERACID FORMED IN SITU BY ADDING TO THE SOLUTION OF SAID POLYMER AN ORGANIC ACID CONTAINING TWO TO EIGHT CARBON ATOMS AT A TEMPERATURE OF 0 TO 80*C., THE AMOUNT OF ORGANIC ACID BEING SUFFICIENT TO PROVIDE 0.2 TO 2 EQUIVALENTS PER OLEFINIC LINKAGE IN SAID LIQUID POLYBUTADIENE, HYDROGEN PEROXIDE, AND AN ACID CATALYST SELECTED FROM THE GROUP CONSISTING OF SULFURIC ACID, PHOSPHORIC ACID, TRICHLOROACETIC ACID AND NUCLEAR SULFONIC CATION EXCHANGE RESINS; SEPARATING THE ORGANIC PHASE FROM THE AQUEOUS PHASES AND REMOVING THE SOLVENT FROM THE ORGANIC PHASE THEREBY OBTAINING RESULTING EPOXIDIZED POLYMER CONTAINING 0.08 TO 0.7 EPOXY OXYGEN ATOM PER DOUBLE BOND ORIGINALLY PRESENT IN SAID POLYMER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-19 | 1965-08-21 | 1966-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-19 | 1969-08-21 | 1970-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-19 | 1973-08-21 | 1974-02-20 | $7700.00 | Window Closed / Lapsed |