US3293209A
Expired / Lapsed
US
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Low pressure polymers stabilized by diethers of dimercaptans
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1961-04-04
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Granted: 1966-12-20
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Expires: 1981-04-04
Abstract
No abstract record available.
Inventors
- 👤 Francis P Baldwin
- 👤 Robert I Mcdougall
- 👤 Clifford W Muessig
- 👤 Jeffrey H Bartlett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:59
CPC Classifications
C; C07; C07C; C07C321/00; C07C323/00; C08; C08K; C08K5/00; C08K5/36; C08K5/37; C08K5/372
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
9 words
NOVEL CHEMICAL DIETHERS OF DIMERCAPTANS CORRESPONDING TO THE FORMULA
Claim 2
Dependent Claim
9 words
NOVEL CHEMICAL DIETHERS OF DIMERCAPTANS CORRESPONDING TO THE FORMULA
Claim 3
Dependent Claim
57 words
A COMPOSITION OF MATTER COMPRISING A LOW PRESSURE SOLID ALPHA ETHYLENICALLY UNSATURATED OLEFIN HYDROCARBON POLYMER PREPARED BY UTILIZING A PARTIALLY REDUCED HEAVY TRANSITION METAL HALIDE CATALYST, STABILIZED AGAINST PROCESS AND OXIDATIVE DEGRADATION BY .005 TO 2 WEIGHT PRECENT BASED ON THE POLYMER OF EACH OF BOTH A PHENOLIC ANTIOXIDANT AND THE DIETHERS OF DIMERCAPTANS OF CLAIM 1.
References Cited (Backward Citations)
US2490875A
Cited
US3010937A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |