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AssigneeNippon Kayaku Kabushiki Kaisha
InventorsSumio Yoda, Nobuyuki Futamura, Matsuo Hashimoto, Yoshifumi Saiki
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A resin composition comprising (a) a glycidyl ether of phenol novolak and/or cresol novolak, (b) a phenol novolak and/or cresol novolak, (c) an organic solvent, and (d) a silane coupling agent having an aromatic ring and an amino group having active hydrogen in the same molecule; a process for forming a transparent thin film by using a glycidyl ether of phenol novolak and/or cresol novolak and a phenol novolak and/or cresol novolak, which comprises dissolving said materials in an organic solvent, forming a coat and heat curing it to obtain a transparent thin film, wherein the improvement comprises the use of a silane coupling agent having an aromatic ring and an amino group having active hydrogen in the same molecule as additive; and transparent thin films formed from the above process.
A resin composition comprising
In a process for forming a transparent thin film on a substrate, which comprises dissolving a glycidyl ether of a novolak selected from the group consisting of phenol novolak, cresol novolak, and a combination of phenol novolak and cresol novolak and a novolak selected from the group consisting of phenol novolak, cresol novolak, and a combination of phenol novolak and cresol novolak in an organic solvent, forming a coating of the resulting solution on said substrate, and heat curing said coating to obtain a transparent film, the improvement comprising adding to said solution a silane coupling agent having an aromatic ring and an amino group having active hydrogen in the same molecule.
Dependencies are inferred from the claim text.