| abstract |
According to the invention there is provided a polymer powder (P) which is selected from the group consisting of (i) polymer powder (P1) and (ii) polymer powder (P2) in. The (i) polymer powder (P1) contains a (meth) acrylate-based polymer (A1) having a glass transition temperature of 0 C or less, and the acetone-soluble component of the polymer powder is 5% by mass or more, and acetone may be used. The mass average molecular weight of the solvent component is 100,000 or more, and the acetone soluble component of the polymer powder (P2) is 2% by mass or more and 35% by mass or less, and the mass average molecular weight of the acetone-soluble component is 100,000 or more. And the volume average primary particle diameter (Dv) is 200 nm or more. |