“…Wide application of polymeric materials based on polyurethanes is due to the unique combination of high strength properties and elasticity, oil and gas resistance, strike and vibration resistance [1,2]. The relevance of modern technologies [6,7,8,9] is primarily determined by ecological factors -polyurethanes of block structure (block-polyurethanes) provide a unique set of properties and, at the same time, they are also suitable for recycling, are recycled by waste-free technology on high-speed automated equipment, including 3D prototyping methods [17,18]. In addition, block-polyurethanes based on oligoethers have increased hydrolytic resistance, frost resistance, more resistant to microorganisms, and therefore are of particular interest.…”