JPS55155080A - Nitrile rubber composition for seal - Google Patents
Nitrile rubber composition for sealInfo
- Publication number
- JPS55155080A JPS55155080A JP6452379A JP6452379A JPS55155080A JP S55155080 A JPS55155080 A JP S55155080A JP 6452379 A JP6452379 A JP 6452379A JP 6452379 A JP6452379 A JP 6452379A JP S55155080 A JPS55155080 A JP S55155080A
- Authority
- JP
- Japan
- Prior art keywords
- nitrile rubber
- seal
- 30w50pts
- cleaving
- adsorption
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Sealing Material Composition (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Sealing Devices (AREA)
Abstract
PURPOSE: Titled composition which provides sealing materials having excellent sealability, prepared by adding to a nitrile rubber polymer, specific carbon black and fine powder of a parallel cleaving mineral.
CONSTITUTION: (A) 100pts.wt. of a nitrile rubber polymer is mixed with (B) 30W50pts.wt. of carbon black, with average particle diameter ≥200mμ, oil absorption ≤350cc/100g and surface area (N2 adsorption) ≤10m2/g, (C) 30W50pts.wt. of fine powder of a parallel cleaving mineral such as talc or mica, with average particle diameter ≥2,000mμ, and surface area (N2 adsorption) ≤100m2/g. A sealing material produced by molding the resulting composition after vulcanization, and then lip-cutting the molded product, can seal effectively even for a shaft having a surface roughness of 7s, a feed pitch of 0.7W0.8mm and a lead angle of 1°, which causes fluid leakage by the seal of the prior art when the direction of rotation coincides with the direction in which the shaft demonstrates the function of transportation of the fluid.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6452379A JPS55155080A (en) | 1979-05-23 | 1979-05-23 | Nitrile rubber composition for seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6452379A JPS55155080A (en) | 1979-05-23 | 1979-05-23 | Nitrile rubber composition for seal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55155080A true JPS55155080A (en) | 1980-12-03 |
Family
ID=13260653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6452379A Pending JPS55155080A (en) | 1979-05-23 | 1979-05-23 | Nitrile rubber composition for seal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55155080A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60192741A (en) * | 1984-03-13 | 1985-10-01 | Molten Corp | Rubber-mica composite material |
JPH01178539A (en) * | 1987-12-29 | 1989-07-14 | Toyoda Gosei Co Ltd | Hydrogenated nitrile rubber composition |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53115444A (en) * | 1977-03-19 | 1978-10-07 | Akira Washida | Sliding member |
-
1979
- 1979-05-23 JP JP6452379A patent/JPS55155080A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53115444A (en) * | 1977-03-19 | 1978-10-07 | Akira Washida | Sliding member |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60192741A (en) * | 1984-03-13 | 1985-10-01 | Molten Corp | Rubber-mica composite material |
JPH01178539A (en) * | 1987-12-29 | 1989-07-14 | Toyoda Gosei Co Ltd | Hydrogenated nitrile rubber composition |
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