US3082192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroxylation of polymers of mono-olefins
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1959-12-18
•
Granted: 1963-03-19
•
Expires: 1979-12-18
Abstract
No abstract record available.
Inventors
- 👤 Kirshenbaum Isidor
- 👤 Jeffrey H Bartlett
- 👤 Ralph M Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:39
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS FOR INTRODUCING HYDROXYL GROUPS INTO POLYMERS OF C2-C12 ALPHA MONO-OLEFIN HYDROCARBONS WHICH COMPRISES CONTACTING SAID POLYMERS WITH MOLECULAR OXYGEN AT TEMPERATURES IN THE RANGE OF ABOUT 100 TO 250* C. IN THE PRESENCE OF ABOUT 0.02 TO 25 WT. PERCENT OF A BORON COMPOUND BASED ON THE WEIGHT OF SAID POLYMERS, SAID BORON COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, BORIC OXIDE, BORATE ESTERS, ALKYL BORIC ACIDS AND ESTERS OF ALKYL BORIC ACIDS.
Claim 2
Dependent Claim
78 words
A PROCESS FOR INTRODUCING HYDROXYL GROUPS INTO POLYMERS OF C2-C12 ALPHA MONO-OLEFIN HYDROCARBONS WHICH COMPRISES CONTACTING SAID POLYMERS WITH MOLECULAR OXYGEN AT TEMPERATURES IN THE RANGE OF ABOUT 100 TO 250* C. IN THE PRESENCE OF ABOUT 0.02 TO 25 WT. PERCENT OF A BORON COMPOUND BASED ON THE WEIGHT OF SAID POLYMERS, SAID BORON COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF BORIC ACID, BORIC OXIDE, BORATE ESTERS, ALKYL BORIC ACIDS AND ESTERS OF ALKYL BORIC ACIDS.
References Cited (Backward Citations)
GB581279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |