POLYSILOXANE-MODIFIED POLYHYDROXY POLYURETHANE RESIN, METHOD FOR PRODUCING SAME, HEAT-SENSITIVE RECORDING MATERIAL USING THE RESIN, IMITATION LEATHER, THERMOPLASTIC POLYOLEFIN RESIN SKIN MATERIAL, MATERIAL FOR WEATHER STRIP, AND WEATHER STRIP

Disclosed are a polysiloxane-modified polyhydroxy polyurethane resin characterized by being derived from a reaction between a 5-membered cyclic carbonate polysiloxane compound represented by the below-described formula (1) and an amine compound, and its production process; and a resin composition, thermal recording medium, imitation leather, thermoplastic polyolefin resin skin material, weather strip material, and weather strip, all of which make use of the resin. wherein A means or