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    • 4. 发明公开
    • Alkaline phenolic resole resin binders
    • Alkalische Phenolresolharz-Bindemittel。
    • EP0399635A2
    • 1990-11-28
    • EP90300365.5
    • 1990-01-12
    • BORDEN, INC.
    • Armbruster, David RayTse, Kwok-Tuen
    • C08G8/04C08G8/28B22C1/22
    • B22C1/2253C08G16/02
    • A binder composition for use in the manufacture of foundry cores and moulds comprising an aqueous alkaline solution of a phenolic resole resin and a phenoxyethanol compound having the general formula Ar-O-CHR¹-CHR²-OH, wherein Ar = phenyl optionally substituted with one or more groups selected from halogen, hydroxy, alkoxy and alkyl groups and R¹ and R² may be the same or different and are each selected from hydrogen, alkyl or alkoxy groups. The use of the phenoxyethanol compound in the binder composition improves the rate of cure of the binder composition and results in the production of moulds and cores having higher tensile strength.
    • 一种用于制造铸造芯和模具的粘合剂组合物,其包含酚醛树脂树脂的碱性水溶液和具有通式Ar-O-CHR 1 -CHR 2 -OH的苯氧基乙醇化合物,其中Ar = 任选被一个或多个选自卤素,羟基,烷氧基和烷基的基团取代的苯基,R 1和R 2可以相同或不同,各自选自氢,烷基或烷氧基。 在粘合剂组合物中使用苯氧基乙醇化合物可提高粘合剂组合物的固化速度,并且导致具有较高拉伸强度的模具和芯的生产。