US2522069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for reclaiming mixed vulcanizates of natural and synthetic polymers
Assignee: Gates Rubber Co
•
Filing: 1948-10-23
•
Granted: 1950-09-12
•
Expires: 1968-10-23
Abstract
No abstract record available.
Inventors
- 👤 Fred W Staten
- 👤 Jr William M Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:43
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/10; C08J2321/00; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
THE PROCESS OF RECLAIMING A SCRAP MIXTURE OF VULCANIZATES OF NATURAL RUBBER AND RUBBERY BUTADIENE STYRENE COPOLYMERS, WHICH COMPRISES, HEATING AND MAINTAINING THE MIXTURE AT A RECLAIMING TEMPERATURE, IN THE PRESENCE OF AN OXIDIZING AGENT, WHILE IN AN AQUEOUS SOLUTION COMPRISING A RECLAIMING OIL, A PEPTIZING AGENT AND AN ADDED AQUEOUS SOLUBLE REVERSIBLE MULTIVALENT CATALYST IN A QUANTITY TO EFFECT SUBSTANTIALLY THE SAME DEGREE OF PLASTICIZATION OF SAID VULCANIZATES, SAID CATALYST BEING SELECTED FROM THE GROUP CONSISTING OF FERROUS AND FERRIC SALTS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |