METHOD OF SEPARATING AND RECOVERING RESIN MIXTURE
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United States of America Patent
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Issued Date -
Aug 29, 2024
app pub date -
Jun 17, 2022
filing date -
Jun 18, 2021
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Abstract
Provided is a separation and recovery method that is method of separating and recovering, from a mixture containing at least a resin layer 1 containing a hydrolyzable polymer A as a main component and a resin layer 2 containing a nonhydrolyzable polymer B as a main component, a hydrolytic component a of the hydrolyzable polymer A and the nonhydrolyzable polymer B, the method including a decomposition and separation step of subjecting the mixture to a hydrothermal reaction treatment to hydrolyze and separate the hydrolyzable polymer A, and to separate the nonhydrolyzable polymer B while a molecular weight of thereof is maintained.
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