Film-forming composition and embedding material

A cured film obtained by curing a solvent-free film-forming composition comprising:

• (A) a triazine ring-containing polymer which comprises a recurring unit structure of formula (1) below:
• wherein R and R′ are each independently a hydrogen atom, an alkyl group, an alkoxy group, an aryl group or an aralkyl group;
• and Ar is at least one moisety selected from the group consisting of moieties of formulas (2) to (13) below:
• wherein R1 to R92 are each independently a hydrogen atom, a halogen atom, a carboxyl group, a sulfone group, an alkyl group 1 to 10 carbons, or an alkoxy group of 1 to 10 carbons;
• R93 and R94 R are hydrogen atoms or alkyl groups of 1 to 10 carbons;
• W1 and W2 are each independently a single bond, CR95R96 (wherein R95 and R96 are each independently a hydrogen atom or an alkyl group of 1 to 10 carbons, with the proviso that R95 and R96 may together form a ring), C═O, O, S, SO, SO2 or NR97 (wherein R97 is a hydrogen atom or an alkyl group of 1 to 10 carbons);
• and X1 and X2 are each independently a single bond, an alkylene group of 1 to 10 carbons, or a group of formula (14) below:
• wherein R98 to R101 are each independently a hydrogen atom, a halogen atom, a carboxyl group, a sulfone group, an alkyl group of 1 to 10 carbons, or an alkoxy group of 1 to 10 carbons;
• and Y1 and Y2 being each independently a single bond or an alkylene group of 1 to 10 carbons;
• (B) a crosslinking agent;
• and
• 1 to 200 parts by weight of (C) an organic monomer capable of providing a linear polymer, wherein the organic monomer is a compound of formula (A) below
• wherein R102 and R104 are each independently a hydrogen atom, an alkyl group of 1 to 10 carbons or a polymerizable carbon-carbon double bond-containing group;
• and R103 being a hydrogen atom or an alkyl group of 1 to 10 carbons, with the proviso that either one of R102 and R104 is a polymerizable carbon-carbon double bond-containing group but R102 and R104 are not both at the same time polymerizable carbon-carbon double bond-containing groups, per 100 parts by weight of said triazine-ring containing polymer (A).

A top emission-type organic electroluminescence device comprising a cured film obtained by curing a solvent-free film-forming composition comprising:

• (A) a triazine ring-containing polymer which comprises a recurring unit structure of formula (1) below:
• wherein R and R′ are each independently a hydrogen atom, an alkyl group, an alkoxy group, an aryl group or an aralkyl group;
• and Ar is at least one moiety selected from the group consisting of moieties of formulas (2) to (13) below:
• wherein R1 to R92 are each independently a hydrogen atom, a halogen atom, a carboxyl group, a sulfone group, an alkyl group of 1 to 10 carbons, or an alkoxy group of 1 to 10 carbons;
• R93 and R94 are hydrogen atoms or alkyl groups of 1 to 10 carbons;
• W1 and W2 are each independently a single bond, CR95R96 (wherein R95 and R96 are each independently a hydrogen atom or an alkyl group of 1 to 10 carbons, with the proviso that R95 and R96 may together form a ring), C═O, O, S, SO, SO2 or NR97 (wherein R97 is a hydrogen atom or an alkyl group of 1 to 10 carbons);
• and X1 and X2 are each independently a single bond, an alkylene group of 1 to 10 carbons, or a group of formula (14) below:
• wherein R98 to R101 are each independently a hydrogen atom, a halogen atom, a carboxyl group, a sulfone group, an alkyl group of 1 to 10 carbons, or an alkoxy group of 1 to 10 carbons;
• and Y1 and Y2 being each independently a single bond or an alkylene group of 1 to 10 carbons;
• (B) a crosslinking agent;
• and
• 1 to 200 parts by weight of (C) an organic monomer capable of providing a linear polymer, wherein the organic monomer is a compound of formula (A) below
• wherein R102 and R104 are each independently a hydrogen atom, an alkyl group of 1 to 10 carbons or a polymerizable carbon-carbon double bond-containing group;
• and R103 being a hydrogen atom or an alkyl group of 1 to 10 carbons, with the proviso that either one of R102 and R104is a polymerizable carbon-carbon double bond-containing group but R102 and R104 are not both at the same time polymerizable carbon-carbon double bond-containing groups, per 100 parts by weight of said triazine-ring containing polymer (A).