Patent ID: 11932731
Assignee: SUMITOMO CHEMICAL COMPANY LIMITED
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. An aromatic polysulfone resin produced by polycondensation of 4,4′-dihydroxydiphenylsulfone represented by chemical formula (S1) shown below and 2-(4-(4-hydroxyphenylsulfonyl)phenoxy)-5-(4-hydroxyphenylsulfonyl)phenol represented by chemical formula (S2) shown below with 4,4′-dichlorodiphenylsulfone represented by chemical formula (S3) shown below:, wherein hydrogen atoms in phenylene groups in formula (S1), formula (S2) and formula (S3) may be each independently substituted with an alkyl group, an aryl group or a halogen atom.