INSULATING MATERIAL FOR PIPE INSULATION, NAMELY INSULATING STRIPS, INSULATING MATS, PIPE CLIP INSERT TAPES, INSULATING HOSES, IN PARTICULAR OF FOAM MATERIAL AND INSULATING SHELLS; HOSES WHICH ARE INTERNALLY AND EXTERNALLY WATER TIGHT AND HOSES WITH REINFORCING INSERTS, IN PARTICULAR REINFORCING NETS AND ADHESIVE TAPES FOR SEALING LONGITUDINALLY SLIT INSULATING HOSES