Patent US3344090A successfully refreshed from Google Patents.
US3344090A
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Vinyl anthraquinone redox-resins and a process for their production
Assignee: Max-Planck-Gesellschaft zur Förderung der Wissenschaften eV
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Filing: 1963-07-30
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Granted: 1967-09-26
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Expires: 1983-07-30
Abstract
No abstract record available.
Inventors
- 👤 Manecke George
- 👤 Storck Winfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:01
CPC Classifications
C; C08; C08F; C08F16/00; C08F16/36; B; B01; B01J; B01J47/00; B01J47/015; C08F8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR THE PRODUCTION OF CROSS-LINKED RESINS FROM VINYL ANTHRAQUINONES COMPRISING POLYMERIZING (A) A 2-VINYL ANTHRAQUINONE OR A 1-VINYL ANTHROQUINONE COMPONENT WITH (B) A COPOLYMERIZABLE AROMATIC MONOVINYL COMPOUND IN THE PRESENCE OF (C) A CROSS-LINKING AROMATIC POLYVINYL MONOMER, THE POLYMERIZATION STEP BEING EFFECTED IN DIMETHYL-SULFOXIDE AT A TEMPERATURE OF ABOUT 100*C. TO ABOUT 200*C., AND RECOVERING THE RESULTING CROSS-LINKED INSOLUBLE RESIN FROM THE POLYMERIZATION MEDIUM.
Claim 2
Dependent Claim
66 words
A PROCESS FOR THE PRODUCTION OF CROSS-LINKED RESINS FROM VINYL ANTHRAQUINONES COMPRISING POLYMERIZING (A) A 2-VINYL ANTHRAQUINONE OR A 1-VINYL ANTHROQUINONE COMPONENT WITH (B) A COPOLYMERIZABLE AROMATIC MONOVINYL COMPOUND IN THE PRESENCE OF (C) A CROSS-LINKING AROMATIC POLYVINYL MONOMER, THE POLYMERIZATION STEP BEING EFFECTED IN DIMETHYL-SULFOXIDE AT A TEMPERATURE OF ABOUT 100*C. TO ABOUT 200*C., AND RECOVERING THE RESULTING CROSS-LINKED INSOLUBLE RESIN FROM THE POLYMERIZATION MEDIUM.
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |