Method of decomposing a polycarbonate
AssigneeTeijin Limited
InventorsMai Kitahara, Masumi Hirata, Tetsuo Ban, Toru Sawaki
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Abstract
A method of decomposing a polycarbonate with water in a supercritical or subcritical state. A high-purity dihydroxy compound which is a constituent component of the polycarbonate can be recovered at a high yield by this decomposition method. This decomposition method is environment-friendly because it does not use an organic solvent, easy to be carried out, has a high decomposition rate and rarely causes a side reaction.
Claims10
A polycarbonate decomposition method comprising decomposing a polycarbonate with water in a supercritical or subcritical state.
An aromatic dihydroxy compound aqueous solution containing 1 wt % or less of an aromatic dihydroxy compound dissolved in water at a temperature of 10 to 100° C. and a pressure of 0.1 to 10 MPa.
Dependencies are inferred from the claim text.