摘要:
A heating assembly (6) having a press roller (24) which has an elastic layer (24b) incorporated dispersedly with voids formed by resin microballoons (24c). The press roller (24) has a low thermal conductivity, hence heat from a heating means (22) can effectively be utilized. It has also a low hardness, so that a pressure contact nip (N) formed between the press roller (24) and the heating means (22) can be made wider. There is also disclosed a process for forming a silicone rubber sponge and a method of forming a roller using the silicone rubber sponge.
摘要:
A fixing rotatable member for use in an image forming apparatus such as a copying apparatus or a laser beam printer is disclosed. The fixing rotatable member includes a base member (200) and an elastic layer (100) provided on the surface thereof. The elastic layer is addition type silicone rubber in which resin-like polyorganosiloxane and 0.1 to 2 percent by weight of inorganic fine powder are mixed.
摘要:
A laminate film showing a good durability under pressure and heat application and suitably used as a fixing film for toner image fixation, is provided. Such a laminate film comprises a polyimide resin layer on a metal base layer at a controlled imidation percentage of 70 - 93 %.
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°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°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.