Abstract: A communication system for transmitting information via drilling rod linkages includes a drill drive, drilling rod linkages comprising a first drilling rod linkage and at least one second drilling rod linkage. The first drilling rod linkage comprises an electrical line, an upper end and a lower end which comprises a receptacle for a drill head. The second drilling rod linkage comprises at least one electrical line, an upper end and a lower end. A sensor and/or actuator is arranged at the lower end of the first drilling rod linkage and at the drill head and transmits data. A first communication unit and an electronics unit are arranged at a drive end. A further communication unit is arranged at the upper end of the first drilling rod linkage and at the upper and lower ends of the second drilling rod linkage. The first communication unit and the further communication units are radio modules which transmit/receive data.

Abstract: A communication system for transmitting information via drilling rod linkages includes a drill drive, drilling rod linkages comprising a first drilling rod linkage and at least one second drilling rod linkage. The first drilling rod linkage comprises an electrical line, an upper end and a lower end which comprises a receptacle for a drill head. The second drilling rod linkage comprises at least one electrical line, an upper end and a lower end. A sensor and/or actuator is arranged at the lower end of the first drilling rod linkage and at the drill head and transmits data. A first communication unit and an electronics unit are arranged at a drive end. A further communication unit is arranged at the upper end of the first drilling rod linkage and at the upper and lower ends of the second drilling rod linkage. The first communication unit and the further communication units are radio modules which transmit/receive data.

Abstract: The present invention describes a process for silylating polysaccharides, oligosaccharides or disaccharides or derivatives thereof by dissolving these in an ionic liquid and reacting them with a silylating agent.