Title:
SEPARATION AND RECOVERY METHOD FOR LAMINATED BODY COMPRISING PLASTIC FILM LAYER, AND MANUFACTURING METHOD FOR REGENERATED PLASTIC PELLETS USING PLASTIC DEBRIS RECOVERED VIA SAID METHOD
Document Type and Number:
WIPO Patent Application WO/2022/190872
Kind Code:
A1
Abstract:
The present invention is a separation and recovery method for a laminated body comprising at least a plastic film layer, and a layer selected from a plastic film layer, a vapour deposition film layer, and a metal foil layer, the method being characterised by comprising: a step 1 of breaking the laminated body into pieces in water or a cleaning solution; and a step 2 of separating the laminated body into single layers by agitating the broken up laminated body in a release agent. The present invention enables the provision of an easy separation and recovery method for a laminated body comprising a plastic film layer and a method for manufacturing high quality plastic pellets by using plastic debris recovered via said method.
Inventors:
SENTE YASUHIRO (JP)
Application Number:
PCT/JP2022/007445
Publication Date:
September 15, 2022
Filing Date:
February 24, 2022
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
B29B17/02; B29B17/04; C09D9/00; C09D9/04
Foreign References:
| JPH08164524A | 1996-06-25 | |||
| JPH06220245A | 1994-08-09 | |||
| JPH10292138A | 1998-11-04 | |||
| CN101318361A | 2008-12-10 | |||
| JP2016153176A | 2016-08-25 | |||
| JP2010241074A | 2010-10-28 | |||
| JP2004042461A | 2004-02-12 | |||
| JP2004043649A | 2004-02-12 |
Attorney, Agent or Firm:
OGAWA Shinji (JP)
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