| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polymer composition capable of providing an aqueous solution of the composition excellent in stability with the passage of time, and further capable of providing a coating film excellent in film properties by formulating a vinyl alcoholic polymer, a starch and saccharides in a specified proportion. SOLUTION: This polymer composition comprises (A) 100 pts.wt. vinyl alcoholic polymer, (B) 0.1-10,000 pts.wt. starch (e.g. oxidized starch) and (C) 0.1-1,000 pts.wt. saccharides, preferably at least one kind selected from monosaccharides, disaccharides and oligosaccharides. For example, the component A is preferably a polyvinyl alcohol modified with a hydrophobic group containing 0.1-20 mol.%α-olefin unit having <=20 carbons (e.g. ethylene), and preferably obtained by saponifying a polymer of a vinyl ester such as vinyl acetate.
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