Process for the preparation of phenolic resin-containing dispersions and
their use as adhesives
    1.
    发明授权
    Process for the preparation of phenolic resin-containing dispersions and their use as adhesives 失效
    用于制备含酚醛树脂的分散体及其作为粘合剂的用途的方法

    公开(公告)号:US4400229A

    公开(公告)日:1983-08-23

    申请号:US326961

    申请日:1981-12-02

    摘要: Aqueous dispersions of a phenolic resole and a thermoplastics polymeric material or a rubber, suitable for use as adhesives, are prepared by(a) dissolving a solid thermoplastics polymeric material, such as a polyvinyl acetal or a nylon polyamide, or rubber in a phenol,(b) adding a nonionic or anionic surface active agent and/or protective colloid,(c) adjusting the mixture to a pH above 7 by addition of a base,(d) adding aqueous formaldehyde solution, or a formaldehyde donor, to a molar ratio of phenol to formaldehyde within the range 1:1 to 1:3,(e) if necessary, adding water, and(f) heating the mixture to form a phenolic resole.

    摘要翻译: 通过(a)将固体热塑性聚合物材料如聚乙烯醇缩醛或尼龙聚酰胺或橡胶溶解在苯酚中来制备适用于粘合剂的酚醛树脂和热塑性聚合材料或橡胶的水分散体, (b)加入非离子或阴离子表面活性剂和/或保护胶体,(c)通过加入碱将混合物调节至高于7的pH,(d)将甲醛水溶液或甲醛供体加入到摩尔 苯酚与甲醛的比例在1:1至1:3的范围内,(e)如果需要,加入水,和(f)加热混合物以形成酚醛树脂。