US3341487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for stopping emulsion polymerizations by the addition of dithiocarbamate salts and alkyl hydroxyl amines
Assignee: Pennwalt Corp
•
Filing: 1964-07-21
•
Granted: 1967-09-12
•
Expires: 1984-07-21
Abstract
No abstract record available.
Inventors
- 👤 Harry E Albert
- 👤 Alfred C Whiton
- 👤 Jr Benjamin S Garvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:38
CPC Classifications
C; C22; C22B; C22B1/00; C22B1/14; C08; C08F; C08F2/00; C08F2/38; C08F2/42; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
IN THE PROCESS OF POLYMERIZING A CONJUGATED DIOLEFIN MONOMER AND TERMINATING THE POLYMERIZATIN BY THE ADDITION OF A STOPPING AGENT, THE IMPROVEMENT WHICH COMPRISES STOPPING SAID POLYMERIZATION WITH A WATER SOLUBLE DITGHIOCARBAMATGE AND AN ALKYLHYDROXYLAMINE OF STRUCTURE
Claim 2
Dependent Claim
37 words
IN THE PROCESS OF POLYMERIZING A CONJUGATED DIOLEFIN MONOMER AND TERMINATING THE POLYMERIZATIN BY THE ADDITION OF A STOPPING AGENT, THE IMPROVEMENT WHICH COMPRISES STOPPING SAID POLYMERIZATION WITH A WATER SOLUBLE DITGHIOCARBAMATGE AND AN ALKYLHYDROXYLAMINE OF STRUCTURE
References Cited (Backward Citations)
US2662876A
Cited
US3148225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |