US3256227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mastication of rubber in the presence of an organic peroxide and an iron salt of a fatty acid
Assignee: Phillips Petroleum Co
•
Filing: 1962-10-29
•
Granted: 1966-06-14
•
Expires: 1982-10-29
Abstract
No abstract record available.
Inventors
- 👤 Kraus Gerard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:28
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K5/14; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S526/00; Y10S526/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN THE PROCESS OF MASTIMATING A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER AND RUBBERY POLYMERS OF CONJUGATED DIENES, THE IMPROVEMENT COMPRISING INCORPORATING AN IRON SALT OF A FATY ACID INTO SAID SELECTED RUBBER AS A PEPTIZING AGENT, AND AN ORGANIC PEROXIDE IN AN AMOUNT SUFFICIENT TO ENHANCE THE PEPTIZING ACTION OF SAID IRON SALT.
Claim 2
Dependent Claim
57 words
IN THE PROCESS OF MASTIMATING A RUBBER SELECTED FROM THE GROUP CONSISTING OF NATURAL RUBBER AND RUBBERY POLYMERS OF CONJUGATED DIENES, THE IMPROVEMENT COMPRISING INCORPORATING AN IRON SALT OF A FATY ACID INTO SAID SELECTED RUBBER AS A PEPTIZING AGENT, AND AN ORGANIC PEROXIDE IN AN AMOUNT SUFFICIENT TO ENHANCE THE PEPTIZING ACTION OF SAID IRON SALT.
References Cited (Backward Citations)
US2153141A
Cited
US2590059A
Cited
US2676944A
Cited
US2784167A
Cited
US2860116A
Cited
US3004018A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |