US2983698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curing oxidized hydrocarbon polymer films
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1957-12-27
•
Granted: 1961-05-09
•
Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Merilyn A Tucker
- 👤 Ober C Slotterbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:28
CPC Classifications
C; C09; C09D; C09D115/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A PROCESS FOR IMPROVING THE HARDNESS OF FILMS PREPARED FROM OXIDIZED LIQUID POLYMERS CHOSEN FROM THE GROUP CONSISTING OF OXIDIZED HOMOPOLYMERS OF BUTADIENE1,3 AND COPOLYMERS OF BUTADIENE WITH 5-30% STYRENE HAVING A MOLECULAR WEIGHT BETWEEN 1,000 AND 10,000, SAID OXIDIZED POLYMERS HAVING BEEN OBTAINED BY AIR BLOWING SAID LIQUID POLYMER WITH A GAS CHOSEN FROM THE GROUP CONSISTING OF AIR AND OXYGEN IN THE PRESENCE OF AN AROMATIC HYDROCARBON SOLVENT HAVING A KAURI-BUTANOL VALUE OF AT LEAST 40 AND 0.001 TO 1.0% OF AN ORGANIC SALT OF A METAL CHOSEN FROM THE GROUP CONSISTING OF COBALT, LEAD, IRON, AND MANGANESE, WHICH COMPRISES ADDING 1 TO 20% OF TETRACHLOROPHTHALIC ANHYDRIDE TO THE OXIDIZED POLYMER, APPLYING A FILM OF THE RESULTING MIXTURE TO A SURFACE AND CURING THE SAID FILM BY BAKING A 150*-350* F. FOR 5 TO 30 MINUTES.
Claim 2
Dependent Claim
138 words
A PROCESS FOR IMPROVING THE HARDNESS OF FILMS PREPARED FROM OXIDIZED LIQUID POLYMERS CHOSEN FROM THE GROUP CONSISTING OF OXIDIZED HOMOPOLYMERS OF BUTADIENE1,3 AND COPOLYMERS OF BUTADIENE WITH 5-30% STYRENE HAVING A MOLECULAR WEIGHT BETWEEN 1,000 AND 10,000, SAID OXIDIZED POLYMERS HAVING BEEN OBTAINED BY AIR BLOWING SAID LIQUID POLYMER WITH A GAS CHOSEN FROM THE GROUP CONSISTING OF AIR AND OXYGEN IN THE PRESENCE OF AN AROMATIC HYDROCARBON SOLVENT HAVING A KAURI-BUTANOL VALUE OF AT LEAST 40 AND 0.001 TO 1.0% OF AN ORGANIC SALT OF A METAL CHOSEN FROM THE GROUP CONSISTING OF COBALT, LEAD, IRON, AND MANGANESE, WHICH COMPRISES ADDING 1 TO 20% OF TETRACHLOROPHTHALIC ANHYDRIDE TO THE OXIDIZED POLYMER, APPLYING A FILM OF THE RESULTING MIXTURE TO A SURFACE AND CURING THE SAID FILM BY BAKING A 150*-350* F. FOR 5 TO 30 MINUTES.
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) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |