Elastic body, elastic roller and fixing device.

摘要

The present invention provides an elastic body comprising addition reaction type silicone rubber elastic material obtained by curing polysiloxane mixture including at least (a) straight-chain dimethyl polysiloxane having the viscosity of 80000 poise or more at a temperature of 25 DEG C and terminated with vinyl groups; and (b) resinous organopolysiloxane having at least two vinyl groups and having the viscosity of 10 poise at the temperature of 25 DEG C and comprising a resin segment comprising at least one of a 4-functional constitutional unit and a 3-functional constitutional unit, and an oil segment comprising a 2-functional constitutional unit. The present invention also provides an elastic roller formed of such elastic body, and a fixing device having a fixing roller including an elastic layer formed of such elastic body.