US2946770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of vinylidene compounds using organic peroxide, organic sulfur and quaternary ammonium compounds as catalysts
Assignee: Evonik Operations GmbH
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Filing: 1955-07-25
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Granted: 1960-07-26
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Expires: 1975-07-25
Abstract
No abstract record available.
Inventors
- 👤 Bader Erich
- 👤 Schweitzer Otto
- 👤 Querfurth Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:20
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; C08F283/00; C08F283/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PROCESS FOR THE MASS POLYMERISATION OF A CH2=C< COMPOUND ORGANIC COMPOUND CONTAINING POLYMERISING A POLYMERIZABLE ORGANIC COMPOUND CONTAINING TERMINAL >C=CH2 GROUP IN THE PRESENCE OF CATALYTIC AMOUNT OF AN ORGANIC PEROXIDE, AN ORGANIC SULPHUR COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULPHINIC ACIDS AND SALTS THEREOF, ALPHA-HYDROSULPHONES, SULPHOXYLATES, ALPHAAMINO-SULPHONES AND MERCAPTANS, AND AN ORGANIC QUATERNARY AMMONIUM COMPOUND THE ORGANIC GROUPS OF WHICH ARE SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARALKYL RADICALS.
Claim 2
Dependent Claim
74 words
A PROCESS FOR THE MASS POLYMERISATION OF A CH2=C< COMPOUND ORGANIC COMPOUND CONTAINING POLYMERISING A POLYMERIZABLE ORGANIC COMPOUND CONTAINING TERMINAL >C=CH2 GROUP IN THE PRESENCE OF CATALYTIC AMOUNT OF AN ORGANIC PEROXIDE, AN ORGANIC SULPHUR COMPOUND SELECTED FROM THE GROUP CONSISTING OF SULPHINIC ACIDS AND SALTS THEREOF, ALPHA-HYDROSULPHONES, SULPHOXYLATES, ALPHAAMINO-SULPHONES AND MERCAPTANS, AND AN ORGANIC QUATERNARY AMMONIUM COMPOUND THE ORGANIC GROUPS OF WHICH ARE SELECTED FROM THE GROUP CONSISTING OF ALKYL AND ARALKYL RADICALS.
References Cited (Backward Citations)
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Cited
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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) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |