US2723968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric materials and method for the manufacture thereof
Assignee: Hawley Products Co
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Filing: 1951-11-24
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Granted: 1955-11-15
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Expires: 1971-11-24
Abstract
No abstract record available.
Inventors
- 👤 John C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:45
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/20; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
THE METHOD OF PRODUCING A POLYMERIC COMPOSITION WHICH COMPRISES COPOLYMERIZING ONE MOLAR PORTION OF A VINYL COMPOUND HAVING A SINGLE CENTER OF OPEN CHAIN CARBON-TO-CARBON DOUBLE BOND UNSATURATION AND CAPABLE OF SELF-POLYMERIZATION AND .03 TO .23 MOLAR PORTION OF AN ORGANIC COMPOUND HAVING AT LEAST TWO CENTERS OF OPEN CHAIN CARBON-TO-CARBON DOUBLE BOND UNSATURATION IN THE PRESENCE OF AN OXYGEN SUPPLYING CATALYST AND A QUANTITY OF A SOLVENT INERT TO THE REACTANTS EFFECTIVE TO SUBSTANTIALLY PREVENT CROSS-LINKING, THE VOLUME RATIO OF SAID SOLVENT TO TOTAL REACTANTS BEING AT LEAST 1:1, AND VULCANIZING THE RESULTANT COPOLYMER WITH RUBBER COMPOUNDING INGREDIENTS INCLUDING SULFUR TO FORM A THERMOELASTIC MATERIAL
Claim 2
Independent Claim
106 words
THE METHOD OF PRODUCING A POLYMERIC COMPOSITION WHICH COMPRISES COPOLYMERIZING ONE MOLAR PORTION OF A VINYL COMPOUND HAVING A SINGLE CENTER OF OPEN CHAIN CARBON-TO-CARBON DOUBLE BOND UNSATURATION AND CAPABLE OF SELF-POLYMERIZATION AND .03 TO .23 MOLAR PORTION OF AN ORGANIC COMPOUND HAVING AT LEAST TWO CENTERS OF OPEN CHAIN CARBON-TO-CARBON DOUBLE BOND UNSATURATION IN THE PRESENCE OF AN OXYGEN SUPPLYING CATALYST AND A QUANTITY OF A SOLVENT INERT TO THE REACTANTS EFFECTIVE TO SUBSTANTIALLY PREVENT CROSS-LINKING, THE VOLUME RATIO OF SAID SOLVENT TO TOTAL REACTANTS BEING AT LEAST 1:1, AND VULCANIZING THE RESULTANT COPOLYMER WITH RUBBER COMPOUNDING INGREDIENTS INCLUDING SULFUR TO FORM A THERMOELASTIC MATERIAL
References Cited (Backward Citations)
US2200429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-14 | 1959-05-16 | 1959-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-14 | 1963-05-16 | 1963-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-14 | 1967-05-16 | 1967-11-15 | $7700.00 | Window Closed / Lapsed |