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    • 7. 发明申请
    • PROCESS FOR PRODUCTION OF POLYAMIDEIMIDE RESIN MICROPARTICLES, AND POLYAMIDEIMIDE RESIN MICROPARTICLES
    • 聚酰胺树脂微生物生产工艺和聚酰胺树脂微生物
    • US20120237771A1
    • 2012-09-20
    • US13508200
    • 2010-10-06
    • Hiroaki AkasakaTakae OnoToshiya Takahashi
    • Hiroaki AkasakaTakae OnoToshiya Takahashi
    • C08G73/14
    • C08J3/14C08G73/14C08J2379/08Y10T428/2982
    • A process for producing fine particles of polyamide-imide resin includes a dissolution step and a precipitation step wherein the dissolution step is selected from steps (a1) and (b1); (a1) polyamide-imide resin is dissolved in an organic solvent to prepare a polyamide-imide resin solution A1 having a polyamide-imide resin content of less than 5 mass %; and (b1) polyamide-imide resin is dissolved in an organic solvent to prepare a polyamide-imide resin solution B1 having a polyamide-imide resin content of less than 10 mass %, and the precipitation step is selected from (a2) the polyamide-imide resin solution A1 is added to a solvent that is virtually free from surface active agents and able to precipitate fine particles of the polyamide-imide resin to cause precipitation of fine particles of the polyamide-imide resin, and (b2) the polyamide-imide resin solution B1 is subjected to flash crystallization to cause precipitation of fine particles of the polyamide-imide resin.
    • 制备聚酰胺酰亚胺树脂微粒的方法包括溶解步骤和沉淀步骤,其中溶解步骤选自步骤(a1)和(b1); (a1)聚酰胺酰亚胺树脂溶解在有机溶剂中,制备聚酰胺 - 酰亚胺树脂含量小于5质量%的聚酰胺 - 酰亚胺树脂溶液A1; 和(b1)聚酰胺酰亚胺树脂溶解在有机溶剂中,制备聚酰胺 - 酰亚胺树脂含量小于10质量%的聚酰胺 - 酰亚胺树脂溶液B1,沉淀步骤选自(a2)聚酰胺 - 将酰亚胺树脂溶液A1加入到基本上不含表面活性剂的溶剂中,并能够使聚酰胺 - 酰亚胺树脂的细颗粒沉淀,使聚酰胺 - 酰亚胺树脂的细颗粒沉淀,和(b2)聚酰胺 - 酰亚胺 树脂溶液B1进行闪光结晶,使聚酰胺 - 酰亚胺树脂的微粒析出。