High saturated copolymer rubber containing nitrile group, method for producing the same, heat resistant rubber composition containing the same, and composite of rubber and fiber

摘要

High saturated copolymer rubber containing nitrile group with a high shear force in the presence of antiaging agent, which contains a nitrile group with more than 15 points, has a viscosity of 5 to 135, and the average molecular weight Mw / number average molecular weight Mn ratio of 3 to A nitrile group containing high saturated copolymer rubber having a moody viscosity rise of 10 points or less while lowering the Mooney viscosity while leaving the room at room temperature for 30 days. The high saturated copolymer rubber containing nitrile group has a small change in viscosity with time and excellent workability and stability. The high saturated copolymer rubber containing the nitrile group can be mixed with other heat-resistant rubber to be used as a heat-resistant rubber composition, and can be made of a composite material having a strength characteristic in combination with the fiber.