US2889307A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weather resistant white composition containing butyl rubber
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1955-03-18
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Granted: 1959-06-02
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Expires: 1975-03-18
Abstract
No abstract record available.
Inventors
- 👤 Robert E Clayton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:27
CPC Classifications
B; B60; B60C; B60C1/00; B60C1/0025; C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A LIGHT COLORED VULCANIZABLE RUBBERY POLYMERIC COMPOSITION OF IMPROVED WEATHERING AND DISCOLORING RESISTANCE CONTAINING THE COMBINATION OF MAGNESIUM OXIDE, TITANIUM DIOXIDE, ZINC OXIDE, AND A COPOLYMER OF A MAJOR PROPORTION OF ISOBUTYLENE AND A MINOR PROPORTION OF A CONJUGATED DIOLEFIN OF ABOUT 4 TO 8 CARBON ATOMS, THE IMPROVEMENT WHICH COMPRISES THAT SAID COMPOSITION CONTAINS PER 100 PARTS BY WEIGHT OF SAID COPOLYMER, ABOUT 15 TO 100 PARTS BY WEIGHT OF MAGNESIUM OXIDE, ABOUT 10 TO 125 PARTS BY WEIGHT OF TITANIUM DIOXIDE AND ABOUT TO 50 PARTS BY WEIGHT OF ZINC OXIDE.
Claim 2
Dependent Claim
94 words
IN A LIGHT COLORED VULCANIZABLE RUBBERY POLYMERIC COMPOSITION OF IMPROVED WEATHERING AND DISCOLORING RESISTANCE CONTAINING THE COMBINATION OF MAGNESIUM OXIDE, TITANIUM DIOXIDE, ZINC OXIDE, AND A COPOLYMER OF A MAJOR PROPORTION OF ISOBUTYLENE AND A MINOR PROPORTION OF A CONJUGATED DIOLEFIN OF ABOUT 4 TO 8 CARBON ATOMS, THE IMPROVEMENT WHICH COMPRISES THAT SAID COMPOSITION CONTAINS PER 100 PARTS BY WEIGHT OF SAID COPOLYMER, ABOUT 15 TO 100 PARTS BY WEIGHT OF MAGNESIUM OXIDE, ABOUT 10 TO 125 PARTS BY WEIGHT OF TITANIUM DIOXIDE AND ABOUT TO 50 PARTS BY WEIGHT OF ZINC OXIDE.
References Cited (Backward Citations)
US2631984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |