US5187232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber compounds of polychloroprene and hydrogenated nitrile rubber
Assignee: Bayer AG
•
Filing: 1990-10-09
•
Granted: 1993-02-16
•
Expires: 2010-10-09
Abstract
Abstract Mixtures of polychloroprene and hydrogenated nitrile rubber give vulcanizates combining high modulus with a high dynamic stress absorption capacity.
Inventors
- 👤 Rudiger Musch
- 👤 Joachim Thormer
- 👤 Hartmuth Buding
- 👤 Friedrich Leibbrandt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:16
CPC Classifications
C; C08; C08L; C08L11/00; C08L15/00; C08L15/005
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
28 words
Compositions containing A) 20 to 60% by weight polychloroprene and B) 80 to 40% by weight hydrogenated nitrile rubber having a degree of hydrogenation of at least 95%.
Claim 2
Dependent Claim
28 words
Compositions containing A) 20 to 60% by weight polychloroprene and B) 80 to 40% by weight hydrogenated nitrile rubber having a degree of hydrogenation of at least 95%.
Claim 3
Dependent Claim
8 words
Vulcanizates of the compositions claimed in claim 1.
References Cited (Backward Citations)
CA527552A
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DE1910770A1
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CA849610A
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US3943192A
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US4048261A
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US4404329A
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US4383072A
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JPS59213743A
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US4857591A
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EP0270020A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-02-16 | 1996-08-17 | 1997-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-02-16 | 2000-08-17 | 2001-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-02-16 | 2004-08-17 | 2005-02-16 | $7700.00 | Window Closed / Lapsed |