Methods for preparing stable silica sols and inorganic coating
compositions
    1.
    发明授权
    Methods for preparing stable silica sols and inorganic coating compositions 失效
    制备稳定的硅溶胶和无机涂料组合物的方法

    公开(公告)号:US4057525A

    公开(公告)日:1977-11-08

    申请号:US667141

    申请日:1976-03-15

    摘要: A novel stable silica sol which does not gel even at low temperatures is prepared by adding a di -or polyhydric alcohol having three or more carbon atoms and a water-soluble melamine resin to a silica sol. A novel water-based coating composition which requires only an applying step, not a baking step nor a drying step, in the use is prepared by adding an aggregate or filler and usual additives for coating material to the aforesaid stable silica sol as binder. By adding further a small amount of a synthetic resin emulsion to said binder, an inorganic coating composition containing a smaller amount of organic materials than that in prior products can be obtained. The coating therefrom is excellent in strength and its fire resistance is not lowered.

    摘要翻译: 通过向硅溶胶中加入碳原子数为3以上的二元多元醇和水溶性三聚氰胺树脂,制备即使在低温下也不凝胶化的新型稳定的硅溶胶。 通过向上述稳定的二氧化硅溶胶中添加聚集体或填料和常用的涂料添加剂作为粘合剂,制备了仅需要施加步骤,而不是烘烤步骤和干燥步骤的新型水性涂料组合物。 通过进一步向所述粘合剂中加入少量合成树脂乳液,可以获得含有比现有产品少的有机材料的无机涂料组合物。 其涂层强度优异,耐火性不降低。