Resin composition for sealing electronic devices, and electronic device
An electronic-device-sealing resin composition and an organic EL element, having, as a crosslinkable organometallic desiccant, a metal complex compound having crosslinkable alkoxide represented by formula (1) as a ligand: M(OR x ) n Formula (1) wherein, in formula (1), M designates Al, B, Ti or Zr; Rx in the ligand designates an alkyl group, an alkenyl group, an aryl group, a cycloalkyl group, a heterocyclic group, an acyl group, or a group represented by formula (a); at least one of Rx's has a crosslinkable group; and n designates a valence of M. wherein, in formula (a), O* designates O of ORx in formula (1); R 1 designates an alkyl group, an alkenyl group or an acyl group; R 2 designates a hydrogen atom or an alkyl group; and R 3 designates an alkyl group or an alkoxy group.
1. An electronic-device-sealing resin composition, comprising, as a crosslinkable organometallic desiccant, a metal complex compound having crosslinkable alkoxide represented by formula (1) as a ligand:
M(OR x ) n Formula (1)
wherein, in formula (1), M designates Al, B, Ti or Zr; Rx in the ligand designates an alkyl group, an alkenyl group, an aryl group, a cycloalkyl group, a heterocyclic group, an acyl group, or a group represented by formula (a); at least one of Rx's has a crosslinkable group; and n designates a valence of M:
wherein, in formula (a), O* designates O of ORx in formula (1); R 1 designates an alkyl group, an alkenyl group or an acyl group; R 2 designates a hydrogen atom or an alkyl group; and R 3 designates an alkyl group or an alkoxy group.
2. The electronic-device-sealing resin composition as claimed in claim 1 , wherein the metal complex compound represented by formula (1) is represented by formula (2):
wherein, in formula (2), M, Rx, n, R 1 , R 2 , and R 3 each have the same meaning as those in formula (1); and at least one of Rx's or at least one of R 1 to R 3 has a crosslinkable group.
3. The electronic-device-sealing resin composition as claimed in claim 1 , wherein at least one of the Rx's is a group in which replacement is made by a crosslinkable group selected from a thiol group, a (meth)acryloyloxy group, an isocyanate group, an oxetane group, and an epoxy group.
4. The electronic-device-sealing resin composition as claimed in claim 1 , wherein at least one of the Rx's is an alkyl group in which replacement is made by a crosslinkable group selected from a thiol group, a (meth)acryloyloxy group, an isocyanate group, an oxetane group, and an epoxy group.
5. The electronic-device-sealing resin composition as claimed in claim 1 , wherein the R 3 is an alkoxy group.
6. The electronic-device-sealing resin composition as claimed in claim 1 , comprising a (meth)acrylate monomer.
7. The electronic-device-sealing resin composition as claimed in claim 6 , wherein the (meth)acrylate monomer is a (meth)acrylate ester monomer having a urethane bond in the molecule.
8. The electronic-device-sealing resin composition as claimed in claim 1 , comprising 1 to 25 mass % of the crosslinkable organometallic desiccant in a whole resin.
9. An organic EL element, having a laminate formed by interposing an organic light-emitting material layer composed of an organic material between a pair of electrodes facing to each other, a structure for blocking the laminate from the outside air, and a desiccator arranged within the structure, wherein the desiccator is formed of the electronic-device-sealing resin composition as claimed in claim 1 .