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US 2021/0061997 A1Published application
Aromatic polysulfone resin and membrane thereof
AssigneeSumitomo Chemical Company, Limited
InventorYusaku KOHINATA
Life of this patent
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Abstract
An aromatic polysulfone resin having a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II), in which a ratio (m:n) of a molar content (m) of the repeating unit represented by Formula (I) to a molar content (n) of the repeating unit represented by Formula (II) is 1:2,000 to 1:200. wherein hydrogen atoms of phenylene groups of Formulae (I) and (II) may be each independently substituted with an alkyl group, an aryl group, or a halogen atom.
Claims3
An aromatic polysulfone resin comprising:
- a repeating unit represented by Formula (I);
- and
- a repeating unit represented by Formula (II),
- wherein a ratio (m:n) of a molar content (m) of the repeating unit represented by Formula (I) to a molar content (n) of the repeating unit represented by Formula (II) is 1:2,000 to 1:200.
- wherein hydrogen atoms of phenylene groups of Formulae (I) and (II) may be each independently substituted with an alkyl group, an aryl group, or a halogen atom.
2 more elements
Dependencies are inferred from the claim text.