US3036978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dissolved copolymers of aqueous solutions of so containing acrolein and a member from the group consisting of acrylonitrile, methyl methacrylate, and vinyl acetate
Assignee: Evonik Operations GmbH
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Filing: 1959-07-07
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Granted: 1962-05-29
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Expires: 1979-07-07
Abstract
No abstract record available.
Inventors
- 👤 Kern Werner
- 👤 Cherdron Harald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:47
CPC Classifications
C; C08; C08G; C08G2/00; C08G2/18; C08G2/26; C08F; C08F20/00; C08F20/62; C08F216/00; C08F216/34; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F8/00; C08F8/34; C08F8/36; C08J; C08J3/00; C08J3/02; C08J3/03; C08L; C08L33/00; C08L33/18; C08L33/20; C08J2333/00; C08J2333/18; C08J2333/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
AN AQUEOUS SOLUTION OF SO2 CONTAINING A DISSOLVED COPOLYMER OF ACROLEIN AND AN ORGANIC LOWER ALIPHATIC MONO VINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, METHYL METHACRYLATE, AND VINYL ACETATE, SAID COPOLYMER CONTAINING FROM OVER 50 TO 90% OF THE VINYL COMPOUND CONSTITUENT AND BEING FORMED BY POLYMERIZING A MIXTURE OF ACROLEIN AND THE ORGANIC, LOWER ALIPHATIC, POLYMERIZABLE, MONOMERIC MONO VINYL COMPOUND WITH THE AID OF A RADICAL FORMING CATALYST.
Claim 2
Dependent Claim
71 words
AN AQUEOUS SOLUTION OF SO2 CONTAINING A DISSOLVED COPOLYMER OF ACROLEIN AND AN ORGANIC LOWER ALIPHATIC MONO VINYL COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, METHYL METHACRYLATE, AND VINYL ACETATE, SAID COPOLYMER CONTAINING FROM OVER 50 TO 90% OF THE VINYL COMPOUND CONSTITUENT AND BEING FORMED BY POLYMERIZING A MIXTURE OF ACROLEIN AND THE ORGANIC, LOWER ALIPHATIC, POLYMERIZABLE, MONOMERIC MONO VINYL COMPOUND WITH THE AID OF A RADICAL FORMING CATALYST.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |