US4350796A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-resistant rubber composition
Assignee: Zeon Corp
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Filing: 1981-10-16
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Granted: 1982-09-21
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Expires: 2001-10-16
Abstract
Abstract An oil-resistant rubber composition comprising a mixture of (1) a partially hydrogenated elastomer from an unsaturated nitrile monomer and a conjugated diene monomer wherein the degree of hydrogenation of the conjugated diene units is 50 to 98 mole %, and (2) a vinyl chloride resin.
Inventors
- 👤 Motofumi Oyama
- 👤 Kinro Hashimoto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:38
CPC Classifications
C; C08; C08L; C08L15/00; C08L15/005; C08L27/00; C08L27/02; C08L27/04; C08L27/06; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
44 words
An oil-resistant rubber composition comprising a mixture of (1) a partially hydrogenated elastomer from an unsaturated nitrile monomer and a conjugated diene monomer wherein the degree of hydrogenation of the conjugated diene units is 50 to 98 mole%, and (2) a vinyl chloride resin.
Claim 2
Dependent Claim
44 words
An oil-resistant rubber composition comprising a mixture of (1) a partially hydrogenated elastomer from an unsaturated nitrile monomer and a conjugated diene monomer wherein the degree of hydrogenation of the conjugated diene units is 50 to 98 mole%, and (2) a vinyl chloride resin.
Claim 3
Dependent Claim
29 words
The rubber composition of claim 1 wherein the amount of the vinyl chloride resin is at least 5 parts by weight per 100 parts by weight of the mixture.
Claim 4
Dependent Claim
22 words
The rubber composition of claim 1 or 2 wherein the elastomer has an unsaturated nitrile content of 10 to 70% by weight.
Claim 5
Dependent Claim
24 words
The rubber composition of claim 1, 2 or 3 wherein the degree of hydrogenation of the conjugated diene units is 70 to 98 mole%.
Claim 6
Dependent Claim
9 words
The rubber composition of claim 1 which is vulcanized.
References Cited (Backward Citations)
US2330353A
Cited
US3872072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-09-20 | 1986-03-22 | 1986-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-09-20 | 1990-03-22 | 1990-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-09-20 | 1994-03-22 | 1994-09-21 | $7700.00 | Window Closed / Lapsed |