| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin composition excellent in water-solubility even after undergone a thermal hystory, and its use. SOLUTION: This resin composition comprises a poiyvinyl alcohol resin (A), a polybasic acid or its alkali metal salt (B), and a hydrazine compound (C), and its use as a tentative coating film, are provided. COPYRIGHT: (C)2003,JPO
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