This invention relates to a rubber elastomer composite material having chemical inertness, non-stickiness and low frictional resistance and a process for the production thereof.
Rubber elastomers have been heretofore widely used in a variety of fields of the production of sealing materials, belts, valves, pumps and so on, but have a disadvantage in that they tend to become sticky when used for a long period of time, especially under pressure. For example, it is often observed that a bottle corked for a long period of time with a bottle stopper made of a rubber elastomer is hard to be uncorked, and when the stopper is forcibly pulled out, a part of the rubber is likely to stick and remain on the inner faces of the neck of the bottle. In another example, when a rubber elastomer applied as a valve member or diaphragm for a pump or valve is pressed against metal faces for a relatively long period of time, the valve member or diaphragm is hard to be separated immediately from the metal faces when the pressure is released. This results in a considerable delay in response rate of the pump or valve. Rubber elastomers have other drawbacks in that they have not sufficient resistances to chemicals and abrasion.