US5246778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hose composition
Assignee: ExxonMobil Chemical Patents Inc
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Filing: 1992-08-17
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Granted: 1993-09-21
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Expires: 2012-08-17
Abstract
Abstract A hose composition is provided which comprises a halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a para-alkylstyrene, fillers, rubber compounding additives and a curing agent. A hose comprising at least a portion made from this hose composition is also provided.
Inventors
- 👤 Bernard J. Costemalle
- 👤 Robert C. Keller
- 👤 Donald F. Kruse
- 👤 James V. Fusco
- 👤 Marcel A. Steurs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:00
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/283; F; F16; F16L; F16L11/00; F16L11/04; F16L2011/047; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2973; Y10T428/2975
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
81 words
A vulcanized elastomeric hose comprising an inner tube and an outer cover, wherein said inner tube or said outer cover comprises a composition consisting essentially of: (1) a halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a para-alkylstyrene, said copolymer comprising at least about 5 weight percent of said para-alkylstyrene, and at least about 0.4 mole percent of said halogen; and (2) a component selected from the group comprising a filler, a rubber compounding additive, and mixtures thereof.
Claim 2
Dependent Claim
81 words
A vulcanized elastomeric hose comprising an inner tube and an outer cover, wherein said inner tube or said outer cover comprises a composition consisting essentially of: (1) a halogen-containing copolymer of a C 4 to C 7 isomonoolefin and a para-alkylstyrene, said copolymer comprising at least about 5 weight percent of said para-alkylstyrene, and at least about 0.4 mole percent of said halogen; and (2) a component selected from the group comprising a filler, a rubber compounding additive, and mixtures thereof.
Claim 3
Dependent Claim
35 words
The vulcanized elastomeric hose of claim 1, wherein said composition comprises from about 35 to about 65 weight percent of said copolymer; and from about 35 to about 65 weight percent of said component (2).
Claim 4
Dependent Claim
21 words
The vulcanized elastomeric hose of claim 1, wherein said copolymer comprises from about 5 to 20 weight percent of said para-alkylstyrene.
Claim 5
Dependent Claim
20 words
The vulcanized elastomeric hose of claim 1, wherein said copolymer comprises at least about 0.5 mole percent of said halogen.
Claim 6
Dependent Claim
22 words
The vulcanized elastomeric hose of claim 1, wherein said halogen is selected from the group consisting of chlorine, bromine, and mixtures thereof.
Claim 7
Dependent Claim
22 words
The vulcanized elastomeric hose of claim 1, wherein said halogen comprises bromine, and wherein said bromine is chemically bound to said para-alkylstyrene.
Claim 8
Dependent Claim
17 words
The vulcanized elastomeric hose of claim 1, wherein said isomonoolefin is isobutylene and said paraalkylstyrene is para-methylstyrene.
Claim 9
Dependent Claim
34 words
The vulcanized elastomeric hose of claim 1, wherein said component (2) is a filler, and wherein said filler is selected from the group consisting of carbon black, calcium carbonate, clay, silica, and mixtures thereof.
Claim 10
Dependent Claim
38 words
The vulcanized elastomeric hose of claim 1, wherein said component (2) is a rubber compounding additive and wherein said rubber compounding additive is selected from the group consisting of antioxidants, stabilizers, rubber processing oils, pigments, and mixtures thereof.
Claim 11
Dependent Claim
29 words
The vulcanized elastomeric hose of claim 9, wherein said rubber compounding additive is selected from the group consisting of stearic acid, low molecular weight polyethylene, waxes, and mixtures thereof.
Claim 12
Dependent Claim
16 words
The vulcanized elastomeric hose of claim 1, wherein said hose is an automotive radiator coolant hose.
Claim 13
Dependent Claim
14 words
The vulcanized elastomeric hose of claim 1, wherein said inner tube comprises said composition.
Claim 14
Dependent Claim
14 words
The vulcanized elastomeric hose of claim 1, wherein said outer cover comprises said composition.
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) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |