Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 20, 2023
0Patent Application Number
173060950
Date Filed
May 3, 2021
0Patent Citations
Patent Primary Examiner
CPC Code
A method for recovering natural fibers from a textile comprising polyester and natural fibers. The method comprises the steps of: providing said textile soaked in a mixture comprising a solvent and a catalyst, providing and maintaining a temperature of said mixture comprising said textile within a range of 80-240° C. during depolymerization of polyester in said textile; and recovering natural fibers after said depolymerization, wherein, in said step of providing said textile soaked in said mixture, said catalyst of said mixture comprises calcium oxide.
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