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Title:
AROMATIC POLYSULFONE, RESIN COMPOSITION, AND METHOD FOR PRODUCING AROMATIC POLYSULFONE
Document Type and Number:
WIPO Patent Application WO/2022/138524
Kind Code:
A1
Abstract:
An aromatic polysulfone which has, at main-chain ends, functional groups of one or more kinds selected from the group consisting of acidic groups having a pKa not higher than the pKa of the carboxyl group and salts of said acidic groups, wherein the amount of the functional groups, as calculated from 1H-NMR peak area ratios, is 0.35-40 per 100 repeating units constituting the main chain of the aromatic polysulfone.

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Inventors:
SUMI YURIKA (JP)
ITO KAZUYUKI (JP)
Application Number:
PCT/JP2021/046908
Publication Date:
June 30, 2022
Filing Date:
December 20, 2021
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C08G75/23; B01D71/68; B01D71/82; C08G65/48; C08L81/06
Foreign References:
JP2017226804A2017-12-28
JP2013189546A2013-09-26
JP2011094110A2011-05-12
JP2018168315A2018-11-01
JP2019019219A2019-02-07
JP2013215640A2013-10-24
JP2003012795A2003-01-15
JP2003292609A2003-10-15
JP2006291046A2006-10-26
JP2020213943A
JP2013215640A2013-10-24
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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