| 摘要 |
Composite acrylic resin particles prepared by effecting an emulsion polymerization of a monomer mixture of (A) at least one crosslinking monomer having in its molecule two or more radically polymerizable mono- or l,l-di-substituted ethylenic unsaturation bonds, or a combination of at least two monomers each having a mutually reactive functional group and one or more radically polymerizable mono- or l,l-di-substituted ethylenic unsaturation bonds, (B) at least one mono-functional polymerizable monomer other than aromatic compound, and (C) at least one monomer having in its molecule one or more radically polymerizable mono- or l,l-di-substituted ethylenic unsaturation bonds and one or more radically polymerizable l,2-di-, l,l,2-tri- or l,l,2,2-tetra-substituted ethylenic unsaturation bonds, and graft-polymerizing thus obtained particles with a polymerizable aromatic compound and other optional mono-functional monomers. The present acrylic resin particles are characterized in that a number of substantiary linear acrylic polymer chains are chemically bonded to the particulate crosslinked acrylic polymer. |
