| 摘要 |
1. Process for producing a sintered plastic material suitable for liquid-permeable separating layers and composed of at least one plastic selected from the group containing polyvinyl chloride, polyvinyl chloride copolymers such as PVC/ABS or PVC/acrylate, polyvinyl chloride graft polymers and also perchlorinated polyvinyl chloride derivatives, polyolefins, polystyrene and mixtures of said components, in which the plastic particles are joined to one another by sintering, with the formation of pores between the plastic particles, characterized in that plastic powders, which do not need to have any microporosity and have a lower sintering temperature, are sintered as binder phase together with microporous plastic powders of higher sintering temperature while maintaining the lower sintering temperature. |
