| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an aqueous dispersion having small dispersion particles, being excellent in deposition property with various base materials and storage stability, and indicating sufficient deposition property even when it is mixed with the other water-based resin. <P>SOLUTION: A block copolymer (C) is constituted by a polymer block (A) mainly formed from an olefin based monomer unit, and a polymer block (B) comprising 2-40 mol% of a vinyl based monomer (B-1) unit having a carboxyl group, an anhydrous carboxylic acid or a sulfonic acid group, 60-98 mol% of an alkyl (meth)acrylate type vinyl based monomer unit (B-2) having a chain length of an alkyl ester of 1-4 and 0-38 mol% of another vinyl based monomer unit (B-3) copolymerizable with the vinyl based monomers (B-1) and (B-2), and having a glass transition point of 10°C or higher. In the aqueous dispersion, the block copolymer (C) is contained in an aqueous solution of a basic substance of 0.05 equivalent or more relative to the carboxyl group. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
