| 摘要 |
PROBLEM TO BE SOLVED: To provide a grease composition for an electrical contact excellent in sulfide-resistance of the contact and in improving effect of stability of contact resistance and further improved in heat stability, storage stability or the like. SOLUTION: The grease composition for an electrical contact contains against 100 pts.wt. of (A) a polyorganosiloxane having a viscosity at 25°C of 10-100,000 mPa s, 0.1-30 pts.wt. of (B) a thickener, 0.01-3 pts.wt. of (C) an organomercaptan, and 0.01-3 pts.wt. of (D) sulfurized oil and fat that are processed with a fine-powdered active carbon. As the component (A), a polyorganosiloxane represented by general formula: [R<SP>1</SP><SB>a</SB>SiO<SB>(4-a)/2</SB>]<SB>n</SB>may be used. COPYRIGHT: (C)2005,JPO&NCIPI |
