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Title:
METHOD FOR PRODUCING HIGH PURITY POLYETHYLENE OR POLYPROPYLENE
Document Type and Number:
WIPO Patent Application WO/2023/073864
Kind Code:
A1
Abstract:
One embodiment of the present invention relates to a method for producing high purity polyethylene or polypropylene in which the polyethylene or polypropylene purity is higher than in a waste plastic. The method includes an extraction step for extracting polyethylene or polypropylene from the waste plastic which contains polyethylene or polypropylene, using a high boiling point solvent having a boiling point of 145°C or higher at 1 atm as an extraction solvent.

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Inventors:
IKENAGA KAZUTOSHI (JP)
Application Number:
PCT/JP2021/039834
Publication Date:
May 04, 2023
Filing Date:
October 28, 2021
Export Citation:
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Assignee:
KIMIGAFUCHI GAKUEN (JP)
International Classes:
C08J11/08; C08J11/02
Domestic Patent References:
WO2016209094A12016-12-29
Foreign References:
JP2001172423A2001-06-26
JP2001072793A2001-03-21
JP2006001987A2006-01-05
JP2006169271A2006-06-29
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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