Title:
METHOD FOR RECOVERING CYCLIC OLEFIN RESIN
Document Type and Number:
WIPO Patent Application WO/2023/054541
Kind Code:
A1
Abstract:
A method for recovering a cyclic olefin resin according to the present invention comprises at least: a first step in which a composite material containing a cyclic olefin resin, and a different resin that is different from the cyclic olefin resin are dissolved in a solvent capable of dissolving the cyclic olefin resin to produce a solution, and a different resin component, which contains the different resin, is precipitated out; a second step in which the solution is filtered and a filtrate is obtained by removing the different resin component; and a third step in which a composition containing the cyclic olefin resin is obtained from the filtrate.
Inventors:
NAKAO TSUKASA (JP)
KIBAYASHI TATSUYA (JP)
KOIKE ASUKA (JP)
KIBAYASHI TATSUYA (JP)
KOIKE ASUKA (JP)
Application Number:
PCT/JP2022/036319
Publication Date:
April 06, 2023
Filing Date:
September 28, 2022
Export Citation:
Assignee:
GUNZE KK (JP)
International Classes:
B29B9/12; C08J11/08
Domestic Patent References:
| WO2003042288A1 | 2003-05-22 |
Foreign References:
| JPH11291247A | 1999-10-26 | |||
| JP2001074729A | 2001-03-23 | |||
| JP2020026104A | 2020-02-20 | |||
| JP2016041371A | 2016-03-31 | |||
| JP2000327828A | 2000-11-28 | |||
| JP2008143018A | 2008-06-26 | |||
| JPH11222533A | 1999-08-17 | |||
| JPS5545718A | 1980-03-31 | |||
| JP2011074204A | 2011-04-14 |
Attorney, Agent or Firm:
TACHIBANA, Kenji (JP)
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