18672014. METHOD FOR RECOVERING MONOMER (Honda Motor Co., Ltd.)
METHOD FOR RECOVERING MONOMER
Organization Name
Inventor(s)
Ryosuke Kodaira of Saitama (JP)
Yoshitaka Suzuki of Saitama (JP)
METHOD FOR RECOVERING MONOMER
This abstract first appeared for US patent application 18672014 titled 'METHOD FOR RECOVERING MONOMER
Original Abstract Submitted
Provided is a method for recovering a monomer from a resin composition comprising a polyester and a polyurethane, the method comprising: depolymerizing the polyester and the polyurethane contained in the resin composition in the presence of a solvent capable of swelling the polyester and the polyurethane, an alcohol, and a base; extracting a depolymerized product of polyester and a depolymerized product of polyurethane with a hydrophilic solvent and a hydrophobic solvent, respectively; and acid precipitating the depolymerized product of the polyester extracted with the hydrophilic solvent.