US2648658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emulsion polymerization of unsaturated organic compounds
Assignee: Hercules Powder Co
•
Filing: 1947-04-12
•
Granted: 1953-08-11
•
Expires: 1967-04-12
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Vandenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:01
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/28; C08F4/32; Y; Y10; Y10S; Y10S526/00; Y10S526/915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
THE PROCESS WHICH COMPRISES POLYMERIZING IN AQUEOUS EMULSION AN ORGANIC COMPOUND CONTAINING THE CH2=C< GROUP IN THE PRESENCE OF A CATALYST COMPRISING A TERTIARY ORGANIC HYDROPEROXIDE HAVING BETWEEN 7 AND 15 CARBON ATOMS, AN ACTIVATOR COMPRISING A WATER-SOLUBLE HEAVY METAL SALT AND AN A-HYDROXYCARBONYL COMPOUND, AND AN EMULSIFYING AGENT COMPRISING AN ALKALI METAL SALT OF A FATTY ACID.
Claim 2
Dependent Claim
58 words
THE PROCESS WHICH COMPRISES POLYMERIZING IN AQUEOUS EMULSION AN ORGANIC COMPOUND CONTAINING THE CH2=C< GROUP IN THE PRESENCE OF A CATALYST COMPRISING A TERTIARY ORGANIC HYDROPEROXIDE HAVING BETWEEN 7 AND 15 CARBON ATOMS, AN ACTIVATOR COMPRISING A WATER-SOLUBLE HEAVY METAL SALT AND AN A-HYDROXYCARBONYL COMPOUND, AND AN EMULSIFYING AGENT COMPRISING AN ALKALI METAL SALT OF A FATTY ACID.
References Cited (Backward Citations)
US2380476A
Cited
US2395523A
Cited
US2403758A
Cited
US2430590A
Cited
US2400041A
Cited
US2476936A
Cited
US2450451A
Cited
US9367805B2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-10 | 1957-02-09 | 1957-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-10 | 1961-02-09 | 1961-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-10 | 1965-02-09 | 1965-08-11 | $7700.00 | Window Closed / Lapsed |