Oil absorbent polyurethane sponges with good mechanical characteristics

摘要

Absorbing a hydrophobic liquid, comprises contacting a polyurethane foam containing hydrophobic groups with a density of 70-300 g/dm 3>, 1-20 cells/cm, a rebound elasticity of more than 30%, a breaking elongation of more than 200%, a tear strength of more than 1.2 N/mm, a compressive strength of more than 4 kPa and a tensile strength of more than 200 kPa, with the hydrophobic liquid.