Polyurethane compositions, products prepared with same and preparation methods thereof

A polyurethane composition, comprising

• (A) at least one polyurethane-prepolymer prepared by reacting at least one polyisocyanate compound with a first polyol component;
• and
• (B) a second polyol component;
• wherein:
• at least one of the first polyol component and the second polyol component comprises an ester/ether random copolymer polyol synthesized by reacting a starting material polyether polyol with at least one monomeric polyhydric alcohol comprising from 2 to 12 carbon atoms and having a hydroxyl functionality of 1.5-3.0 and at least one monomeric multifunctional carboxylic acid or anhydride thereof comprising from 2 to 20 carbon atoms and having a carboxylic acid functionality of 1.5-3.0, and wherein:
• the ester/ether random copolymer polyol is selected from a polyethylene polytetramethylene ether adipate and a polybutylene polytetramethylene ether adipate, and
• the ester/ether random copolymer polyol has a number average molecular weight of 800to 6,000 g/mol, an average hydroxyl functionality of 1.5 to 3.0, and a weight ratio between an ether segment and an ester segment in the ester/ether random copolymer polyol is from 0.05/0.95to 0.95/0.05.