EXTREME-PRESSURE ADDITIVE, PROCESS FOR PRODUCING THE SAME, CUTTING FLUID, AND GRINDING FLUID

Title:

EXTREME-PRESSURE ADDITIVE, PROCESS FOR PRODUCING THE SAME, CUTTING FLUID, AND GRINDING FLUID

Document Type and Number:

WIPO Patent Application WO/2001/005916

Kind Code:

A1

Abstract:

A sulfurized extreme-pressure additive which contains no surfactants, is perfectly soluble in water, is reduced in odor, and has a satisfactory hue; and a cutting fluid and a grinding fluid which are excellent in antifoaming and anticorrosive properties and have high load-bearing performance and lubricating performance comparable to those of conventional cutting and grinding oils. The extreme-pressure additive comprises a salt of a condensate of a sulfurized unsaturated hydroxyfatty acid, the condensate having a sulfur content of 8 to 15 wt.%, a hue of 6 or less, and an acid value of 80 to 200. The grinding fluid comprises this extreme-pressure additive and water.

Inventors:

YAMADA SHIGERU (JP)
IBI KAZUMASA (JP)

Application Number:

PCT/JP2000/004872

Publication Date:

January 25, 2001

Filing Date:

July 21, 2000

Export Citation:

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Assignee:

DAINIPPON INK & CHEMICALS (JP)
YAMADA SHIGERU (JP)
IBI KAZUMASA (JP)

International Classes:

C10M135/02; C10M159/12; C10M173/02; C10M177/00; (IPC1-7): C10M135/00

Foreign References:

EP0806470A2	1997-11-12
JPS61183392A	1986-08-16
US4119550A	1978-10-10
EP0001217A2	1979-04-04
EP0652271A1	1995-05-10

Other References: