US3224985A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastomeric blends of an ethylene/1,4-hexadiene copolymer and a diene rubber
Assignee: EIDP Inc
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Filing: 1962-11-19
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Granted: 1965-12-21
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Edward K Gladding
- 👤 Jack L Nyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:17
CPC Classifications
C; C08; C08L; C08L21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A SULFUR-CURABLE BLEND CONSISTING ESSENTIALLY OF (A) AN AMOUNT OF AN ETHYLENE/1,4-HEXADIENE COPOLYMER SUFFICIENT TO IMPART OZONE RESISTANCE TO THE BLEND AND (B) A DIENE RUBBER HAVING AT LEAST ABOUT 20 MOL PER CENT CONJUGATED DIENE MONOMER UNITS INCORPORATED THEREIN; SAID ETHYLENE COPOLYMER HAVING AT LEAST ABOUT 2.4 GRAMMOLES OF C=C GROUPS PER KILOGRAM AND EXHIBITING AN INHERENT VISCOSITY OF AT LEAST 0.1 (MEASURED ON A 0.1 PERCENT BY WEIGHT SOLUTION IN TETRACHLOROETHYLENE AT 30*C.).
Claim 2
Dependent Claim
75 words
A SULFUR-CURABLE BLEND CONSISTING ESSENTIALLY OF (A) AN AMOUNT OF AN ETHYLENE/1,4-HEXADIENE COPOLYMER SUFFICIENT TO IMPART OZONE RESISTANCE TO THE BLEND AND (B) A DIENE RUBBER HAVING AT LEAST ABOUT 20 MOL PER CENT CONJUGATED DIENE MONOMER UNITS INCORPORATED THEREIN; SAID ETHYLENE COPOLYMER HAVING AT LEAST ABOUT 2.4 GRAMMOLES OF C=C GROUPS PER KILOGRAM AND EXHIBITING AN INHERENT VISCOSITY OF AT LEAST 0.1 (MEASURED ON A 0.1 PERCENT BY WEIGHT SOLUTION IN TETRACHLOROETHYLENE AT 30*C.).
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |