US3112285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation resistant butyl rubber containing a wax and a polymeric dialkyl fumarate ester
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1958-11-03
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Granted: 1963-11-26
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Expires: 1978-11-03
Abstract
No abstract record available.
Inventors
- 👤 Richard R Phelan
- 👤 David R Hammel
- 👤 William H Meyer
- 👤 Walter L Dunkel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:20
CPC Classifications
C; C08; C08L; C08L21/00; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A COMPOSITION OF MATTER WITH INCREASED OZONE RESISTANCE COMPRISING: 100 PARTS BY WEIGHT OF A COPOLYMER OF 70 TO 99.5 WT. PERCENT OF A C4 TO C7 ISOOLEFIN AND 30 TO 0.5 WT. PERCENT OF A C4 TO C10 MULTIOLEFIN; 3 TO 10 PARTS OF A WAX SELECTED FROM THE GROUP CONSISTING OF PARAFFIN WAX, MICROCRYSTALLINE WAX, AN AMIDE CONDENSATION DERIVATIVE OF A SATURATED FATTY ACID HAVING AT LEAST 12 CARBON ATOMS AND AN IMIDE CONDENSATION DERIVATIVES OF A SATURATED FATTY ACID HAVING AT LEAST 12 CARBON ATOMS; AND 0.25 TO 2.5 PARTS OF A POLYMERIC DIALKYL FUMARATE ACID ESTER OF A SATURATED ALIPHATIC ALCOHOL OF 8 TO 18 CARBON ATOMS.
Claim 2
Dependent Claim
111 words
A COMPOSITION OF MATTER WITH INCREASED OZONE RESISTANCE COMPRISING: 100 PARTS BY WEIGHT OF A COPOLYMER OF 70 TO 99.5 WT. PERCENT OF A C4 TO C7 ISOOLEFIN AND 30 TO 0.5 WT. PERCENT OF A C4 TO C10 MULTIOLEFIN; 3 TO 10 PARTS OF A WAX SELECTED FROM THE GROUP CONSISTING OF PARAFFIN WAX, MICROCRYSTALLINE WAX, AN AMIDE CONDENSATION DERIVATIVE OF A SATURATED FATTY ACID HAVING AT LEAST 12 CARBON ATOMS AND AN IMIDE CONDENSATION DERIVATIVES OF A SATURATED FATTY ACID HAVING AT LEAST 12 CARBON ATOMS; AND 0.25 TO 2.5 PARTS OF A POLYMERIC DIALKYL FUMARATE ACID ESTER OF A SATURATED ALIPHATIC ALCOHOL OF 8 TO 18 CARBON ATOMS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-11-25 | 1967-05-27 | 1967-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-11-25 | 1971-05-27 | 1971-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-11-25 | 1975-05-27 | 1975-11-26 | $7700.00 | Window Closed / Lapsed |