申请人:Sanyo Chemical Industries, Ltd.
公开号:EP1710272A1
公开(公告)日:2006-10-11
Disclosed are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). A core-shell resin particle (C2) is characterized in that the weight ratio between (P) and (Q) is from 0.1:99.9 to 70:30, the volatile content in the resin particle (C2) is not more than 2 weight %, and the resin (a) has an initial softening temperature of 40 to 270°C, a Tg of 20 to 250°C, a flow temperature of 60 to 300°C, and the difference of the Tg and the flow temperature in a range of 0 to 120°C. Said resin particles are excellent in electrostatic property, thermal storage stability and thermal properties, and exhibit a narrow particle diameter distribution.
本发明公开了芯壳树脂颗粒(C2),每个芯壳树脂颗粒(C2)包括一个或多个由第一种树脂(a)组成的薄膜状外壳层(P)和由第二种树脂(b)组成的芯层(Q)。芯壳树脂颗粒(C2)的特征在于,(P)和(Q)的重量比为 0.1:99.9 至 70:30,树脂颗粒(C2)中的挥发物含量不超过 2 重量%,树脂(a)的初始软化温度为 40 至 270°C,Tg 为 20 至 250°C,流动温度为 60 至 300°C,Tg 和流动温度的差值范围为 0 至 120°C。所述树脂颗粒具有优异的静电性能、热储存稳定性和热性能,并呈现出较窄的颗粒直径分布。