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專利名稱 1，4-雙(二氟溴甲基)四氟苯之製備方法
創作型式 發明
專利證號 US7868213B2
國別 美國
獲證日期 2011/01/11
專利摘要 A preparing method for coating polymethylmethacrylate (PMMA) particles with silicon dioxide is disclosed and includes the following steps of: preparing a silicon dioxide solution by mixing a silicon dioxide powder and a solvent; adding a dispersant-and-interface-modifier agent into the silicon dioxide solution; performing a wet grinding to the silicon dioxide solution with the dispersant-and-interface-modifier agent so as to obtain a plurality of nano-sized silicon dioxide particles with negative charge; performing an interface modification to a plurality of PMMA particles to be charged with positive charge; adding the PMMA particles into the silicon dioxide solution; making the PMMA particles adsorb the nano-sized silicon dioxide particles; and performing a solid-liquid separation process to the silicon dioxide solution so as to obtain the chemical composite particles.

IPC國際分類號

B01J001302
聯絡人 王淳右
電話 #329566
EMAIL f437frank@ncsist.org.tw