SEPARATION AND RECOVERY METHOD FOR LAMINATE

Title:

SEPARATION AND RECOVERY METHOD FOR LAMINATE

Document Type and Number:

WIPO Patent Application WO/2024/071019

Kind Code:

A1

Abstract:

The present disclosure provides a separation and recovery method for a laminate that has: a separation step for immersing a laminate that comprises, in order, at least a first substrate layer, an adhesive layer that includes a polyethyleneimine or a polybutadiene and has a mass per unit area of 5–100 mg/m2, and a polyolefin resin layer in a separation liquid to separate the polyolefin resin from the laminate; and a recovery step for recovering the separated polyolefin resin.

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Inventors:

SHIKIJI WATARU (JP)
MAEDA DAISUKE (JP)
TAKAHASHI KANORI (JP)
YOSHIDA NOBUHITO (JP)

Application Number:

PCT/JP2023/034675

Publication Date:

April 04, 2024

Filing Date:

September 25, 2023

Export Citation:

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Assignee:

ARTIENCE CO LTD (JP)
TOYO MORTON LTD (JP)
TOYO INK CO LTD (JP)

International Classes:

B29B17/00; B32B27/00; B32B27/32

Domestic Patent References:

WO2015146842A1

2015-10-01

Foreign References:

JPS52119675A	1977-10-07
JPS5159937A	1976-05-25
JP2018001613A	2018-01-11
JP2020175620A	2020-10-29
JP7263661B1	2023-04-25

Attorney, Agent or Firm:

MIYOSHI Hidekazu et al. (JP)

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