| 摘要 |
PROBLEM TO BE SOLVED: To provide a one-component primer composition which excels in storage stability, in which even if it is applied to a brittle inorganic material with much intake, there is little intake, and an underlying material can be reinforced, in which even if it is recoated on various deteriorated old coating films, the lifting of the old coating films is not caused, and which can form a coating film excellent in solvent resistance, and to provide the coating method. SOLUTION: The one-component primer composition comprises: an epoxy resin having at least one epoxy group in one molecule; a ketimines compound obtained by the dehydrating condensation reaction of a carbonyl compound and a primary amino group; and an organic solvent, wherein the epoxy resin and the ketimines compound are included by the combining percentage so that the ratio (the numbers of active hydrogens/the numbers of epoxy groups) of the total active hydrogen numbers of the ketimines compound to the total epoxy group numbers of the epoxy resin is set to 0.5-5.0, wherein at least 95 mass% of the organic solvent is an organic solvent with the boiling point of at least 150°C, and wherein the epoxy resin and the ketimines compound are dissolved in the organic solvent and do not contain pigments. COPYRIGHT: (C)2007,JPO&INPIT
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