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Title:
GAS SEPARATION MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2023/176974
Kind Code:
A1
Abstract:
The present invention relates to a gas separation membrane for separating carbon dioxide from a gas mixture containing carbon dioxide, the gas separation membrane including a polycarbonate-polyorganosiloxane copolymer (A), the polycarbonate-polyorganosiloxane copolymer (A) including a polycarbonate block (A-1) including only repetition of a structure unit represented by the general formula (I) and a polyorganosiloxane block (A-2) including repetition of a structure unit represented by the general formula (II), wherein the content of the polyorganosiloxane block (A-2) in the polycarbonate-polyorganosiloxane copolymer (A) is 20% by mass to 70% by mass inclusive. [In the formulas, R1, R2, R3, R4, X, a, and b are as defined in the specification.]

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Inventors:
MIYANE SATOSHI (JP)
ISHII HIROTOSHI (JP)
IDETA KAZUSHIGE (JP)
ISHIKAWA YASUHIRO (JP)
Application Number:
PCT/JP2023/010723
Publication Date:
September 21, 2023
Filing Date:
March 17, 2023
Export Citation:
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Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
B01D71/70; B01D53/22; B01D71/50; B01D71/80; C08G81/00
Foreign References:
JPS4864199A1973-09-05
JPS61192322A1986-08-26
JPS5482380A1979-06-30
US3189662A1965-06-15
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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