NOVEL DIURETHANE COMPOUND, PROCESS FOR PRODUCING THE SAME, AND ACRYLIC RUBBER COMPOSITION CONTAINING THE SAME

摘要

Disclosed is a diurethane compound R 2 (SO 2 ) m (CH 2 ) n OCONH-R 1 -NHCOO(CH 2 ) n (SO 2 )R 2 produced by a method allowing a diamine compound H 2 NR 1 NH 2 to react with a chloroformate compound ClCOO(CH 2 ) n (SO 2 ) m R 2 or a method allowing a diisocyanate compound OCNR 1 NCO to react with a hydroxyl-containing compound R 2 (SO 2 ) m (CH 2 ) n OH. The diurethane compound is compounded with multivalent amine crosslinkable group-containing acrylic rubber together with a basic vulcanization accelerator to form an acrylic rubber composition. The acrylic rubber composition including the diurethane compound as a vulcanizing agent decreases a delay in the vulcanization rate due to prevention of scorching and also allows a vulcanized article to satisfy the compression set characteristics.