US2822342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat processing of butyl rubber with carbon black and a promoter and product obtained
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-06-02
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Granted: 1958-02-04
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Expires: 1972-06-02
Abstract
No abstract record available.
Inventors
- 👤 Francis P Ford
- 👤 Albert M Gessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:51
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/04; B; B60; B60C; B60C1/00; C08K5/00; C08K5/16; C08K5/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A PROCESS WHICH COMPRISES MIXING CARBON BLACK WITH A LOW UNSATURATION SOLID OLEFIN-MULTIOLEFIN SYNTHETIC RUBBERY COPOLYMER AND FROM 0.3% TO ABOUT 0.5% OF A REACTANT SELECTED FROM THE GROUP CONSISTING OF DINITROSO COMPOUNDS, DIOXIMES, AND AROMATIC QUINONOID COMPOUNDS, AND SUBJECTING SAID MIXTURE TO AN ELEVATED TEMPERATURE FOR AN EXTENDED PERIOD OF TIME, THE COMBINATION OF SAID TEMPERATURE AND SAID TIME BEING SUBSTANTIALLY AS SEVERE AS THE COMBINATION OF A TEMPERATURE OF 360*F. FOR A TIME OF 30 MINUTES WHEREBY BOTH THE STRESS PROPERTIES AND THE ELASTIC PROPERTIES OF THE SUBSEQUENTLY CURED COPOLYMER ARE IMPROVED, AND THE MOONEY VALUE IS ON THE DECREASE FROM THE MAXIMUM.
Claim 2
Dependent Claim
105 words
A PROCESS WHICH COMPRISES MIXING CARBON BLACK WITH A LOW UNSATURATION SOLID OLEFIN-MULTIOLEFIN SYNTHETIC RUBBERY COPOLYMER AND FROM 0.3% TO ABOUT 0.5% OF A REACTANT SELECTED FROM THE GROUP CONSISTING OF DINITROSO COMPOUNDS, DIOXIMES, AND AROMATIC QUINONOID COMPOUNDS, AND SUBJECTING SAID MIXTURE TO AN ELEVATED TEMPERATURE FOR AN EXTENDED PERIOD OF TIME, THE COMBINATION OF SAID TEMPERATURE AND SAID TIME BEING SUBSTANTIALLY AS SEVERE AS THE COMBINATION OF A TEMPERATURE OF 360*F. FOR A TIME OF 30 MINUTES WHEREBY BOTH THE STRESS PROPERTIES AND THE ELASTIC PROPERTIES OF THE SUBSEQUENTLY CURED COPOLYMER ARE IMPROVED, AND THE MOONEY VALUE IS ON THE DECREASE FROM THE MAXIMUM.
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) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |