| abstract |
The present invention provides an addition-hardening liquid polyoxyxene rubber composition which has less viscosity increase over time and excellent storage stability even when polyfluorene-oxygen rubber is added to a liquid polyoxyethylene rubber composition. At the same time, a polyoxyxene rubber having a low hardness after hardening can be obtained.nThe addition-hardening liquid polyoxymethylene rubber composition of the present invention contains the following components (A) to (F), and can obtain a hardness of 5 to 40 after hardening (Du Durometer A). Oxide rubber: (A) an organopolysiloxane containing an alkenyl group having an average degree of polymerization of 1,500 or less at room temperature, and (B) an organic polyfluorene having a mean degree of polymerization of 2,000 or more at room temperature. a oxane, (C) an organohydrogenpolyoxyalkylene, (D) a fumed cerium oxide having a BET specific surface area of 130 m 2 /g or more, (E) an organic decane having a stanol group and/or an organic polyoxane, (F) Addition reaction catalyst. |