JPS55155080A - Nitrile rubber composition for seal - Google Patents

Nitrile rubber composition for seal

Info

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
Application number
JP6452379A
Other languages
Japanese (ja)
Inventor
Isao Kurose
Masaru Okamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uchiyama Manufacturing Corp
Original Assignee
Uchiyama Manufacturing Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uchiyama Manufacturing Corp filed Critical Uchiyama Manufacturing Corp
Priority to JP6452379A priority Critical patent/JPS55155080A/en
Publication of JPS55155080A publication Critical patent/JPS55155080A/en
Pending legal-status Critical Current

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
JP6452379A 1979-05-23 1979-05-23 Nitrile rubber composition for seal Pending JPS55155080A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115444A (en) * 1977-03-19 1978-10-07 Akira Washida Sliding member

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53115444A (en) * 1977-03-19 1978-10-07 Akira Washida Sliding member

Cited By (2)

* Cited by examiner, † Cited by third party
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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