US2805190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for retarding the premature polymerization of polymerizable vinylidene compounds
Assignee: Dow Chemical Co
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Filing: 1955-09-08
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Granted: 1957-09-03
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Expires: 1975-09-08
Abstract
No abstract record available.
Inventors
- 👤 Roger F Monroe
- 👤 Fred J Lowes
- 👤 John F Mulloy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:29
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
IN A METHOD THAT COMPRISES HEATING A POLYMERIZABLE VINYLIDENE COMPOUND AT TEMPERATURES BETWEEN 70* AND 110*C. IN THE ABSENCE OF ADDED POLYMERIZATION CATALYSTS, THE IMPROVEMENT THAT COMPRISES RETARDING THE POLYMERIZATION OF THE VINYLIDENE COMPOUND DURING SUCH HEATING BY INCORPORATING IN SUCH VINYLIDENE COMPOUND AN EFFECTIVE PROPORTION OF AT LEAST ONE ALKYNOL SELECTED FROM THE GROUP CONSISTING OF ALKYNOLS HAVING THE STRUCTURAL FORMULAE
Claim 2
Dependent Claim
62 words
IN A METHOD THAT COMPRISES HEATING A POLYMERIZABLE VINYLIDENE COMPOUND AT TEMPERATURES BETWEEN 70* AND 110*C. IN THE ABSENCE OF ADDED POLYMERIZATION CATALYSTS, THE IMPROVEMENT THAT COMPRISES RETARDING THE POLYMERIZATION OF THE VINYLIDENE COMPOUND DURING SUCH HEATING BY INCORPORATING IN SUCH VINYLIDENE COMPOUND AN EFFECTIVE PROPORTION OF AT LEAST ONE ALKYNOL SELECTED FROM THE GROUP CONSISTING OF ALKYNOLS HAVING THE STRUCTURAL FORMULAE
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |