US3084147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal polymerization of dicyclopentadiene
Assignee: Velsicol Chemical LLC
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Filing: 1958-06-27
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Granted: 1963-04-02
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Expires: 1978-06-27
Abstract
No abstract record available.
Inventors
- 👤 Louis P Wilks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:59
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
A PROCESS FOR THE PREPARATION OF RESINOUS MATERIAL WHICH COMPRISES SUBJECTING A REACTION MIXTURE CONTAINING AS ITS POLYMERIZABLE COMPONENTS, A DIENE SELECTED FROM THE GROUP, CONSISTING OF CYCLOPENTADIENE, METHYLCYCLOPENTADIENE, DICYCLOPENTADIENE, METHYLDICYCLOPENTADIENE, DIMETHYLCYCLOPENTADIENE AND MIXTURES THEREOF AND THE BALANCE NON-POLYMERIZAABLE SOLVENT THEREFOR, TO THERNAL POLYMERIZATION AT A TEMPERATURE BETWEEN ABOUT 500*F. AND 550*F. WHILE MAINTAINING THE REACTANTS IN A SUBSTANTIALLY LIQUID CONDITION.
Claim 2
Dependent Claim
61 words
A PROCESS FOR THE PREPARATION OF RESINOUS MATERIAL WHICH COMPRISES SUBJECTING A REACTION MIXTURE CONTAINING AS ITS POLYMERIZABLE COMPONENTS, A DIENE SELECTED FROM THE GROUP, CONSISTING OF CYCLOPENTADIENE, METHYLCYCLOPENTADIENE, DICYCLOPENTADIENE, METHYLDICYCLOPENTADIENE, DIMETHYLCYCLOPENTADIENE AND MIXTURES THEREOF AND THE BALANCE NON-POLYMERIZAABLE SOLVENT THEREFOR, TO THERNAL POLYMERIZATION AT A TEMPERATURE BETWEEN ABOUT 500*F. AND 550*F. WHILE MAINTAINING THE REACTANTS IN A SUBSTANTIALLY LIQUID CONDITION.
Claim 3
Dependent Claim
32 words
A RESINOUS MATERIAL COMPOSED SUBSTANTIALLY OF POLYMERIZED DICYLOPENTADIENE SOLULE IN TOLUENE, CONTAINING ABOUT 0.3 TO ABOUT 0.5 DOUBLE BONDS PER POLYMERIZED CYCLOPENTADIENE MOLECULE AND HAVING A MELTING POINT BETWEEN 250*F. AND 400*F.
Claim 4
Dependent Claim
32 words
A RESINOUS MATERIAL COMPOSED SUBSTANTIALLY OF POLYMERIZED DICYLOPENTADIENE SOLULE IN TOLUENE, CONTAINING ABOUT 0.3 TO ABOUT 0.5 DOUBLE BONDS PER POLYMERIZED CYCLOPENTADIENE MOLECULE AND HAVING A MELTING POINT BETWEEN 250*F. AND 400*F.
References Cited (Backward Citations)
US2734031A
Cited
US2067073A
Cited
US2314903A
Cited
US2314904A
Cited
US2731370A
Cited
US2898316A
Cited
GB774871A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |