Patent ID: 11952462
Assignee: DAICEL CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 10:
11. A solid material comprising a cured product of a curable compound,
wherein the curable compound is represented by Formula (1) below:, , where R1 and R2 are identical or different, and each are a group selected from groups represented by Formulas (r-1) to (r-6):, where a bond from a nitrogen atom in each formula bonds to D1 or D2,
D1 and D2 are phenylene groups, and
L represents a divalent group having a repeating unit containing a structure derived from benzophenone, and a structure derived from at least one compound selected from the group consisting of hydroquinone, resorcinol, 2,6-naphthalenediol, 2,7-naphthalenediol, 4,4′-dihydroxybiphenyl, 4,4′-dihydroxydiphenyl ether, 4,4′-dihydroxybenzophenone, 4,4′-dihydroxydiphenyl sulfide, 4,4′-dihydroxydiphenyl sulfone, and bisphenol A,
wherein a 5% weight loss temperature (Td5) measured at a rate of temperature increase of 10° C./min, in nitrogen, is 300° C. or higher, and a nitrogen atom content after being subjected to heat treatment at 320° C. for 30 minutes is from 2.8 to 0.1 wt. %.