An electrolyser for high-temperature electrolysis configured to operate in an allothermal mode, including an enclosure configured to maintain an electrolytic bath under high or very high pressure of several tens of bars, in which at least one electrolysis plate is arranged, and a heater internal to the enclosure. The compositions may include, for example, expandable cross-linked polymeric microparticles having unexpanded volume average particle size diameters of from about 0. A pointer is read referencing one end of the packet queue from a queue descriptor in the second memory area into a third memory area in one read operation. An antenna resonating element may be formed from the traces. A molded product prepared using the polypropylene resin composition of the present invention has matt properties, do not cause odor due to their excellent VOC adsorption capabilities, and have excellent properties such as low temperature impact resistance, scratch resistance, etc.