| 摘要 |
A novel aggregated-particle composition which can be recovered so as to be extremely reduced in the content of fine particles and coarse particles and satisfactory in powder characteristics including blocking resistance and powder flowability, without deteriorating the original quality possessed by the polymer itself, such as the effect of improving impact resistance. The aggregated-particle composition comprises: a graft polymer (A) comprising one or more flexible polymer phases and one or more rigid polymer phases, the outermost part thereof being the rigid polymer phase; a water-soluble polymer (B) having the property of forming a physical gel; and a gellant (C) therefor. The composition is characterized in that the amount of the water-soluble polymer (B) having the property of forming a physical gel is 0.01-3.0 parts by weight per 100 parts by weight of the graft polymer (A) and the proportion of the outermost rigid polymer phase in the graft polymer (A) is 0.5-10 wt.%.
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