Method for the preparation of polymers
    1.
    发明授权
    Method for the preparation of polymers 有权
    制备聚合物的方法

    公开(公告)号:US06245882B1

    公开(公告)日:2001-06-12

    申请号:US09388383

    申请日:1999-09-01

    IPC分类号: C08F614

    摘要: Method for the manufacture of a phenolic resin emulsion and/or dispersion, wherein an aldehyde, a phenolic compound and an alkaline catalyst are allowed to react at a temperature of 40-100° C. until a desired degree of condensation is achieved, and the pH of the resin is adjusted to a value below 9 using an acid in the presence of a surface active agent or a mixture thereof at a temperature below 100° C. and a phenolic resin emulsion and/or dispersion is obtained providing a colorless or light-colored glue line or surface when cured.

    摘要翻译: 制备酚醛树脂乳液和/或分散体的方法,其中醛,酚类化合物和碱性催化剂在40-100℃的温度下反应,直到达到所需的冷凝程度,并且 使用酸在表面活性剂或其混合物的存在下,在低于100℃的温度下将树脂的pH调节至低于9的值,得到酚醛树脂乳液和/或分散体,提供无色或浅色 固化后的彩色胶线或表面。