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发明公开
CN101303539A 生产树脂颗粒的方法 失效 - 权利终止

生产树脂颗粒的方法
摘要：
提供一种生产树脂颗粒的方法，包括：熔融含有粘结树脂和至少一种添加剂的混合物以便制备熔融材料，所述添加剂的熔点低于粘结树脂的T1/2，其中T1/2表示依照1/2方法确定的软化点；在温度高于粘结树脂的玻璃态转变温度且低于粘结树脂的T1/2的3倍的气氛中雾化来自熔融材料的树脂颗粒；将树脂颗粒保持在温度高于粘结树脂的玻璃态转变温度且低于粘结树脂的T1/2的1.5倍的气氛中1秒到15秒；并冷却和固化树脂颗粒。还提供了一种生产树脂颗粒的方法，包括熔融混合物以便制备熔融材料，在温度高于粘结树脂的Tg且低于粘结树脂的T1/2的3倍的气氛中增大熔融材料的比表面积以便形成前体；将前体保持在温度高于粘结树脂的Tg且低于粘结树脂的T1/2的1.5倍的气氛中1毫秒到10毫秒；冷却和固化前体；并雾化来自前体的树脂颗粒。
摘要（英）：

There is provided a method for producing resinous particles, containing: melting a mixture containing a binder resin and at least one additive having a melting point lower than T1/2 of the binder resin so as to prepare a molten material; atomizing resinous particles from the molten material in an atmosphere having a temperature higher than Tg of the binder resin and lower than 3 times of T1/2 of the binder resin; retaining the resinous particles in an atmosphere having a temperature higher than Tg of the binder resin, and lower than 1.5 times of T1/2 of the binder resin for 1 s to 15 s; and cooling and solidifying the resinous particles. There is also provided a method for producing resinous particles containing: melting the mixture so as to prepare a molten material; increasing a specific surface of the molten material in an atmosphere having a temperature higher than Tg of the binder resin, and lower than 3 times of T1/2 of the binder resin, so as to form a precursor; retaining the precursor in an atmosphere having a temperature higher than Tg of the binder resin, and lower than 1.5 times of T1/2 of the binder resin for 1 ms to 10 ms; cooling and solidifying the precursor; and atomizing resinous particles from the precursor.

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