HYDRAULIC FLUID COMPOSITION FOR BUFFER

Title:

HYDRAULIC FLUID COMPOSITION FOR BUFFER

Document Type and Number:

WIPO Patent Application WO/2006/129888

Kind Code:

A1

Abstract:

A hydraulic fluid composition for buffers which enables a buffer comprising a piston, in particular, one having a sliding fluororesin material attached thereto, and a cylinder to have a piston/cylinder frictional force controlled according to the intended use of the buffer and which can retain the frictional properties for long. The hydraulic fluid composition for buffers is characterized by comprising a lube base oil and, incorporated therein, (A) at least one member selected among phosphoric esters and phosphorous esters each having a C_3-30 hydrocarbon group and salts of the esters and (B) C_6-30 (un)saturated fatty acid/glycerol esters which have a triester content of 10 mass% or lower based on the whole esters and in which the ratio by mass of the monoester to the sum of the monoester and the diester is 0.5 or higher.

Inventors:

SHIRAHAMA SHINICHI (JP)
AOKI TORU (JP)
ARIMOTO NAOZUMI (JP)

Application Number:

PCT/JP2006/311679

Publication Date:

December 07, 2006

Filing Date:

June 05, 2006

Export Citation:

Click for automatic bibliography generation Help

Assignee:

NIPPON OIL CORP (JP)
SHIRAHAMA SHINICHI (JP)
AOKI TORU (JP)
ARIMOTO NAOZUMI (JP)

International Classes:

C10M141/10; C10M129/74; C10M129/76; C10M133/00; C10M137/02; C10N30/06; C10N40/08; F16F9/32

Domestic Patent References:

WO1999038939A1

1999-08-05

Foreign References:

JP2000192067A	2000-07-11
JPS60173097A	1985-09-06
JPH05331477A	1993-12-14
JPH06145684A	1994-05-27
JPH09111277A	1997-04-28
JP2002194376A	2002-07-10

Attorney, Agent or Firm:

Morita, Nobuyuki (5-8 Nishi-shimbashi 3-chom, Minato-ku Tokyo 03, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: SILICONE RUBBER COMPOSITION

Next Patent: HYDRAULIC FLUID COMPOSITION FOR BUFFER