US2497107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of polymerizing conjugated dienes in the presence of selected alkyl esters of mercaptyl undecanoic acids as polymerization regulators
Assignee: Armstrong World Industries Inc
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Filing: 1947-09-17
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Granted: 1950-02-14
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Expires: 1967-09-17
Abstract
No abstract record available.
Inventors
- 👤 Karl H Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:34
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE PROCESS WHICH COMPRISES POLYMERIZING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AN OPEN CHAIN, ALPHATIC CONJUGATED DIENE CONTAINING 4 TO 6 CARBON ATOMS AND A MIXTURE OF SUCH A CONJUGATED DIENE WITH A DIFFERENT COPOLYMERIZABLE COMPOUND CONTAINING A VINYL RADICAL IN AN AQUEOUS EMULSION IN THE PRESENCE OF A POLYMERIZATION REGULATOR SELECTED FROM THE GROUP CONSISTING OF ALKYL 11-MERCAPTYL UNDECANOATE, ALKYL 10-MERCAPTYL UNDECANOATE, AND A MIXTURE OF ALKYL 11-MERCAPTYL UNDECANOATE AND ALKYL 10-MERCAPTYL UNDECANOATE, SAID ALKYL RADICAL HAVING 1 TO 4 CARBON ATOMS INCLUSIVE.
Claim 2
Dependent Claim
86 words
THE PROCESS WHICH COMPRISES POLYMERIZING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF AN OPEN CHAIN, ALPHATIC CONJUGATED DIENE CONTAINING 4 TO 6 CARBON ATOMS AND A MIXTURE OF SUCH A CONJUGATED DIENE WITH A DIFFERENT COPOLYMERIZABLE COMPOUND CONTAINING A VINYL RADICAL IN AN AQUEOUS EMULSION IN THE PRESENCE OF A POLYMERIZATION REGULATOR SELECTED FROM THE GROUP CONSISTING OF ALKYL 11-MERCAPTYL UNDECANOATE, ALKYL 10-MERCAPTYL UNDECANOATE, AND A MIXTURE OF ALKYL 11-MERCAPTYL UNDECANOATE AND ALKYL 10-MERCAPTYL UNDECANOATE, SAID ALKYL RADICAL HAVING 1 TO 4 CARBON ATOMS INCLUSIVE.
References Cited (Backward Citations)
US2402644A
Cited
US2378030A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |