US2510882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable dispersion of phenyl beta naphthylamine and the like
Assignee: Standard Oil Development Co
•
Filing: 1947-04-26
•
Granted: 1950-06-06
•
Expires: 1967-04-26
Abstract
No abstract record available.
Inventors
- 👤 Albert P Giraitis
- 👤 Kenneth J Whittet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:24
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
IN AN ACQUEOUS EMULSION POLYMERIZATION PROCESS FOR THE PRODUCTION OF RUBBERY MATERIALS WHEREIN A CONJUGATED DIOLEFIN OF 4 TO 6 CARBON ATOMS IS COPOLYMERIZED WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ACRYLONITRILE, STYRENEAND VINYL METHYL KETONE, THE IMPROVEMENT WHICH COMPRISES ADDING TO THE POLYMERIZED EMULSION A STABLE ACQUEOUS SUSPENSION CONTAINING 15 TO 35 PARTS BY WEIGHT OF A STABILIZING AGENT SELECTED FROM THE GROUP CONSISTING OF PHYENYL BETA NAPHTHYLAMINE AND DIBETANAPHTHYL P-PHENYLENE DIAMINE, 12 TO 15 PARTS BY WEIGHT OF AN ALKANOL OF 2 TO 4 CARBON ATOMS, 01. TO 0.5 PART BY WEIGHT OF A COLLOIDAL CLAY AND 0.2 TO 1.0 PART BY WEIGHT OF AN EMULSIFYING AGENT SELECTED FROM THE GROUP CONSISTING OF GUM ARABIC AND CASEIN.
References Cited (Backward Citations)
US1428084A
Cited
US2256853A
Cited
US2333023A
Cited
US2390765A
Cited
US2378882A
Cited
US2441523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |