HYDRAULIC WORKING FLUID COMPOSITION FOR SHOCK ABSORBER

Title:

HYDRAULIC WORKING FLUID COMPOSITION FOR SHOCK ABSORBER

Document Type and Number:

Japanese Patent JP2006335964

Kind Code:

A

Abstract:

To provide a hydraulic working fluid composition for shock absorbers which improves vehicle body wandering and ride quality by achieving heightened friction between the sealing material and the piston rod in a shock absorber and stick-slip prevention.

The hydraulic working fluid composition for shock absorbers comprises a lubricating base oil, (A) a hydrogen phosphite having a 3 to 10C hydrocarbon group, and (B) a 6 to 30C fatty acid and/or a 6 to 30C fatty acid ester.

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Inventors:

SHIRAHAMA SHINICHI
AOKI TORU
ARIMOTO NAOZUMI

Application Number:

JP2005164735A

Publication Date:

December 14, 2006

Filing Date:

June 03, 2005

Export Citation:

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Assignee:

NIPPON OIL CORP

International Classes:

C10M169/04; C10M101/02; C10M129/30; C10M129/38; C10M129/70; C10M129/72; C10M133/54; C10M133/56; C10M137/02; C10N30/06; C10N40/06; C10N40/08

Domestic Patent References:

JPH06179885A	1994-06-28
JPH04314794A	1992-11-05
JPS5845293A	1983-03-16
JP2004035624A	2004-02-05
JP2002194376A	2002-07-10

Attorney, Agent or Firm:

Junyuki Morita

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