申请人:Borden, Inc.
公开号:EP0469811A2
公开(公告)日:1992-02-05
There are disclosed methods and compositions for accelerating the hardening of phenolic resole resins having a pH of about 4.5 to 9.5 with lightburned magnesium oxide or magnesium hydroxide, with or without the addition of an ester functional hardening agent. Acceleration of hardening is achieved by incorporating into said compositions an effective quantity of a material which: increases the solubility of magnesium in the hardenable mixture; by certain amines; or by certain chelating agents. Accelerator compounds include those which provide chloride, sulfamate, nitrate, formate, and phosphite anions as well as selected tertiary amines.
本发明公开了用轻烧氧化镁或氢氧化镁加速pH值约为4.5至9.5的酚醛树脂硬化的方法和组合物,可添加或不添加酯官能硬化剂。通过在上述组合物中加入有效数量的材料可加速硬化:增加镁在可硬化混合物中的溶解度;通过某些胺;或通过某些螯合剂。促进剂化合物包括提供氯化物、氨基磺酸盐、硝酸盐、甲酸盐和亚磷酸阴离子的化合物以及某些叔胺。