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    • 5. 发明授权
    • Resin purification process
    • 树脂净化工艺
    • US5939511A
    • 1999-08-17
    • US57115
    • 1998-04-08
    • Anthony ZampiniSuzanne M. Coley
    • Anthony ZampiniSuzanne M. Coley
    • C08G8/04C08G8/08G03F7/023
    • G03F7/0236C08G8/04C08G8/08
    • The invention is directed to purification of phenolic resins and to a process for preparing an organic photoresist coating composition. The process comprises reacting one or more phenols to form a crude phenolic resin. The crude phenolic resin formed is then separated from its reaction mixture and dissolved in an aqueous insoluble organic solvent in an organic solvent that is a solvent for the photoresist coating composition. The solution so formed is then mixed with an aqueous phase to extract water soluble impurities from the resin solution into the aqueous phase. Finally, the purified resin solution is further diluted with additional photoresist solvent.
    • 本发明涉及酚醛树脂的纯化和制备有机光致抗蚀剂涂料组合物的方法。 该方法包括使一种或多种酚反应形成粗酚醛树脂。 然后将形成的粗制酚醛树脂与其反应混合物分离并溶解在水溶性有机溶剂中的有机溶剂中,该有机溶剂是光刻胶涂料组合物的溶剂。 然后将如此形成的溶液与水相混合以将水溶性杂质从树脂溶液中提取到水相中。 最后,用额外的光致抗蚀剂溶剂进一步稀释纯化的树脂溶液。