Patent ID: 9023908
Filing Date: 2015-05-05
Classification: C02F,C08G

Abstract:
1. A method for absorbing hydrophobic liquids comprising oil on the surface of an oil-contaminated body of water, comprising contacting the hydrophobic liquid on the surface of the body of water with a polyurethane sponge with a density from 70 to 300 g/dm 3 , with from 1 to 20 cells/cm, with a rebound resilience greater than 30%, with an elongation at break greater than 200%, with a tear propagation resistance greater than 1.2 N/mm, with a compressive strength greater than 4 kPa when measured at 40% compression, and with a tensile strength greater than 200 kPa, and wherein the polyurethane sponge comprises hydrophobic groups.