Title:
CYCLOPENTENE RECOVERY METHOD
Document Type and Number:
WIPO Patent Application WO/2023/132366
Kind Code:
A1
Abstract:
Provided is a cyclopentene recovery method for recovering cyclopentene by causing a metathesis catalyst to act on a ring‐opened polymer having a structural unit derived from cyclopentene.
Inventors:
KUMAZAWA KAZUKI (JP)
HAYANO SHIGETAKA (JP)
HAYANO SHIGETAKA (JP)
Application Number:
PCT/JP2023/000195
Publication Date:
July 13, 2023
Filing Date:
January 06, 2023
Export Citation:
Assignee:
ZEON CORP (JP)
International Classes:
C07C4/22; C07B61/00; C07C13/12; C08C19/08; C08F32/08
Domestic Patent References:
| WO2021242636A1 | 2021-12-02 |
Foreign References:
| JPH08176022A | 1996-07-09 | |||
| JPS4641609B1 | 1971-12-08 | |||
| JPH01311120A | 1989-12-15 | |||
| US20200094234A1 | 2020-03-26 | |||
| US20210371575A1 | 2021-12-02 |
Other References:
KORSHAK, YU V. ET AL.: "Mechanism of polypentenamer decomposition in the presence of metathesis catalysts", DOKLADY AKADEMII NAUK SSSR, vol. 248, no. 2, 1979, pages 372 - 375, XP009547598
THORN-CSANYI, EMMA ET AL.: "Sequence length distribution of 1,2-units in polybutadienes by means of the olefin-polymer/metathesis reaction; a route for synthesis of mono- and disubstituted cyclopentene- and cyclohexene compounds", MAKROMOLEKULARE CHEMIE, vol. 180, no. 4, 1979, pages 919 - 928, XP009547596
THORN-CSANYI, EMMA ET AL.: "Sequence length distribution of 1,2-units in polybutadienes by means of the olefin-polymer/metathesis reaction; a route for synthesis of mono- and disubstituted cyclopentene- and cyclohexene compounds", MAKROMOLEKULARE CHEMIE, vol. 180, no. 4, 1979, pages 919 - 928, XP009547596
Attorney, Agent or Firm:
TOKOSHIE PATENT FIRM (JP)
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