ADDITION-CURABLE LIQUID SILICONE RUBBER COMPOSITION FOR AUTOMOBILE OIL FILTER SEALING MEMBER, AND AUTOMOBILE OIL FILTER SEALING MEMBER

摘要

Provided is an addition-curable liquid silicone rubber composition for an automobile oil filter sealing member. This addition-curable liquid silicone rubber composition for an automobile oil filter sealing member contains: (A) 100 parts by mass of an organopolysiloxane which contains alkenyl groups bonded to two or more silicon atoms in one molecule and is a liquid at 25°C; (B) an organohydrogen polysiloxane containing hydrogen atoms bonded to at least two silicon atoms in one molecule, wherein the amount of the organohydrogen polysiloxane is such that the number of hydrogen atoms bonded to silicon atoms contained in one molecule of the organohydrogen polysiloxane with respect to the total number of the alkenyl groups bonded to silicon atoms in component (A) is 1-10 hydrogen atoms per 1 alkenyl group; (C) 0.1-100 parts by mass of reinforcing silica fine powder having a specific surface area of 50 m²/g or more as measured by the BET method; (D) an effective amount of a platinum-group metal-based catalyst as a catalyst for a hydrosilylation reaction; and (E) 20-100 parts by mass of silicate mineral fine powder.