US3354129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polymers from aromatic compounds
Assignee: Phillips Petroleum Co
•
Filing: 1963-11-27
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Granted: 1967-11-21
•
Expires: 1983-11-27
Abstract
No abstract record available.
Inventors
- 👤 Jr James T Edmonds
- 👤 Jr Harold Wayne Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:51
CPC Classifications
C; C07; C07C; C07C321/00; C08; C08G; C08G75/00; C08G75/02; C08G75/0204; C08G75/0209; C08G75/0213; C08G75/0227; C08G75/0231; C08G75/0236; C08G75/025; C08G75/0254; C08G75/0277; C08G75/0281; C08G75/0286; C08G75/0295
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
69 words
A PROCESS FOR THE PRODUCTION OF A POLYER WHICH COMPRISES REACTING AT LEAST ONE POLYHALO-SUBSTITUTED AROMATIC COMPOUND WHEREIN THE HALOGEN ATOMS ARE ATTACHED TO RING CARBON ATOMS WITH AN ALKALI METAL SULFIDE IN A POLAR ORGANIC COMPOUND AT AN ELEVATED TEMPERATURE FOR A TIME SUFFICIENT TO OBTAIN POLYMER, SAID POLAR ORGANIC COMPOUND BEING A MATERIAL THAT WILL SUBSTANTIALLY DISSOLVE BOTH THE ALKALI METAL SULFIDE AND THE POLYHALO-SUBSTITUTED AROMATIC COMPOUND.
Claim 2
Dependent Claim
69 words
A PROCESS FOR THE PRODUCTION OF A POLYER WHICH COMPRISES REACTING AT LEAST ONE POLYHALO-SUBSTITUTED AROMATIC COMPOUND WHEREIN THE HALOGEN ATOMS ARE ATTACHED TO RING CARBON ATOMS WITH AN ALKALI METAL SULFIDE IN A POLAR ORGANIC COMPOUND AT AN ELEVATED TEMPERATURE FOR A TIME SUFFICIENT TO OBTAIN POLYMER, SAID POLAR ORGANIC COMPOUND BEING A MATERIAL THAT WILL SUBSTANTIALLY DISSOLVE BOTH THE ALKALI METAL SULFIDE AND THE POLYHALO-SUBSTITUTED AROMATIC COMPOUND.
Claim 3
Dependent Claim
16 words
THE PRODUCT FORMED BY THE PROCESS OF CLAIM 1 WHEREIN SAID POLYHALO-SUBSTITUTED AROMATIC COMPOUND IS 2,5DIBROMOTHIOPHENE.
References Cited (Backward Citations)
CA458472A
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CA483648A
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GB385980A
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US2216044A
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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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |