SILICONE OIL COMPOUND COMPOSITION

摘要

PROBLEM TO BE SOLVED: To obtain a silicone oil compound having small change in viscosity even in a wide range of temperature and suitable for viscous fluid-sealed dampers. SOLUTION: This silicone oil compound composition for viscous fluid-sealed dampers consists essentially of (1) 100 pts.wt. polyorganosiloxane of the general formula RaSiO(4-a)/2 [R is an unsubstituted or substituted same or different 1-20C monovalent hydrocarbon group; (a) is 1.9-2.1], (2) 5-200 pts.wt. polyorganosilsesquioxane powder and (3) 1-150 pts.wt. precipitated calcium carbonate and/or heavy calcium carbonate.