US2855374A
Expired / Lapsed
US
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Crotonic acid modified polyvinyl emulsions and process for preparing same
Assignee: Consortium fuer Elektrochemische Industrie GmbH
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Filing: 1955-04-28
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Granted: 1958-10-07
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Expires: 1975-04-28
Abstract
No abstract record available.
Inventors
- 👤 Willy O Herrmann
- 👤 Haehnel Wolfram
- 👤 Winkler Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:56
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/327; D06M15/333; B; B32; B32B; B32B27/00; C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C09; C09J; C09J157/00; C08L; C08L2666/00; C08L2666/28; C08L2666/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A CROTONIC ACID MODIFIED AQUEOUS EMULSION COMPRISING AN AQUEOUS EMULSION OF A POLYMERIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ACETATE, POLYVINYL CHLORIDE AND VINYL ACETATE-VINYL CHLORIDE COPOLYMERS AND AI PERCENT TO ABOUT 10 PERCENT BY WEIGHT OF THE TOTAL EMULSION OF FREE CROTONIC ACID.
Claim 2
Dependent Claim
46 words
A CROTONIC ACID MODIFIED AQUEOUS EMULSION COMPRISING AN AQUEOUS EMULSION OF A POLYMERIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF POLYVINYL ACETATE, POLYVINYL CHLORIDE AND VINYL ACETATE-VINYL CHLORIDE COPOLYMERS AND AI PERCENT TO ABOUT 10 PERCENT BY WEIGHT OF THE TOTAL EMULSION OF FREE CROTONIC ACID.
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) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |