Urethane rubber; urethane sheets for heat dissipation in electronic devices; urethane films for heat dissipation in electronic devices; thermal insulating materials not for building; adhesive caulking compounds; pipe jackets, not of metal; insulating materials made of polyurethane foam; insulating refractory materials; electrical insulators made of ceramic materials; insulators for electric mains; dielectrics being insulating materials; electrical, thermal and sound insulators; electrical ins...