US2565783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of unsaturated compounds utilizing a catalyst mixture
Assignee: Gevaert Photo Producten NV
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Filing: 1947-05-16
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Granted: 1951-08-28
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Expires: 1967-05-16
Abstract
No abstract record available.
Inventors
- 👤 Ferdinand Leo Maria Schouteden
- 👤 Remi Gustaaf Tritsmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:23
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; Y; Y10; Y10S; Y10S260/00; Y10S260/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS WHICH COMPRISES HEATING AT A TEMPERATURE RANGING BETWEEN 50* AND 90* C., AN AQUEOUS SUSPENSION OF 100 PARTS BY WEIGHT OF A VINYL ESTER IN THE PRESENCE OF A CATALYST MIXTURE CONTAINING PER SAID 100 PARTS OF VINYL ESTER BETWEEN .05 AND 0.1 PART OF AN ORGANIC PEROXIDE SELECTED FROM THE GROUP CONSISTING OF BENZOYL PEROXIDE AND DIBUTYRYL PEROXIDE, AND HYDROGEN PEROXIDE IN AN AMOUNT BETWEEN ABOUT 0.2 PART TO 0.8 PART PER PART OF THE ORGANIC PEROXIDE PRESENT.
Claim 2
Dependent Claim
81 words
A PROCESS WHICH COMPRISES HEATING AT A TEMPERATURE RANGING BETWEEN 50* AND 90* C., AN AQUEOUS SUSPENSION OF 100 PARTS BY WEIGHT OF A VINYL ESTER IN THE PRESENCE OF A CATALYST MIXTURE CONTAINING PER SAID 100 PARTS OF VINYL ESTER BETWEEN .05 AND 0.1 PART OF AN ORGANIC PEROXIDE SELECTED FROM THE GROUP CONSISTING OF BENZOYL PEROXIDE AND DIBUTYRYL PEROXIDE, AND HYDROGEN PEROXIDE IN AN AMOUNT BETWEEN ABOUT 0.2 PART TO 0.8 PART PER PART OF THE ORGANIC PEROXIDE PRESENT.
References Cited (Backward Citations)
US1586803A
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US2300566A
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Cited
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Cited
FR906863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-27 | 1955-02-26 | 1955-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-27 | 1959-02-26 | 1959-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-27 | 1963-02-26 | 1963-08-28 | $7700.00 | Window Closed / Lapsed |