PHENOLIC RESINS
    10.
    发明申请
    PHENOLIC RESINS 审中-公开
    酚醛树脂

    公开(公告)号:WO9006904A2

    公开(公告)日:1990-06-28

    申请号:PCT/GB8901526

    申请日:1989-12-21

    CPC classification number: C04B26/122 B22C1/2253 C08K5/10 C08L61/06

    Abstract: A cured phenolic resin may be prepared by reacting (1) an esterified phenolic compound containing one or more phenolic hydroxyl groups and/or one or more esterified phenolic hydroxyl groups and further containing one or more esterified methylol groups ortho and/or para to the (esterified) phenolic hydroxyl group and (2) a phenolic resole resin in the presence of a base and water and/or other polar solvent. This technique may be used in the production of phenolic-based adhesives, foundry moulding compositions, surface coatings, foams and proppants.

    Abstract translation: 酚醛树脂可以通过(1)含有一个或多个酚羟基和/或一个或多个酯化的酚羟基基团并且进一步含有一个或多个酯化的羟甲基酯化的酚类化合物正交定位的和/或并联反应来制备硫化 (2)酚醛树脂,在碱和水和/或另一种极性溶剂存在下与酚羟基(酯化的)反应。 该技术可用于生产苯酚粘合剂,铸造模塑组合物,表面涂料,泡沫塑料和固化剂。

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