Lubricating silicone grease null for synthetic rubber part for brake equipment for automobile

摘要

PURPOSE:To obtain the title grease with an improved heat resistance and long- standing stabilized performances by compounding a specified organopolysiloxane with a specified thickener. CONSTITUTION:100 pts.wt. organopolysiloxane with a viscosity of 10 -100,000cst at 25 deg.C, represented by the formula wherein R is a monovalent 1-18C (un)saturated hydrocarbon group and 1.95a2.20, is compounded with 2-70 pts.wt. at least one thickener selected from among organic-modified clayey mineral, polytetrafluoroethylene powder, silica, graphite, carbon black, arylurea, phthalocyanine and indanthrene, and, if necessary, an antioxidant, an extreme- pressure additive, an oiliness improver, a rust-proofing agent, etc.