申请人:Johnson Matthey Public Limited Company
公开号:US05401535A1
公开(公告)日:1995-03-28
A homogeneous composition for forming on firing a film of precious metal, which is one or more of platinum, palladium, gold and silver, on a substrate, for instance to decorate table ware, comprises polymeric resin and a solution, in water and a co-solvent, of thiolate of the precious metal, the composition containing 3-22% by weight of the precious metal as the thiolate, and the co-solvent, resin and thiolate being such that as the composition on a substrate dries and is progressively heated in firing, the water evaporates off to leave a homogeneous composition of the resin and thiolate in the co-solvent, then the co-solvent evaporates off to leave a homogeneous composition of the thiolate in the resin, and then the thiolate decomposes to the precious metal while the resin volatilize.
一种均匀的组合物,用于在基底上烧成贵金属薄膜,其中贵金属可以是铂、钯、金和银中的一种或多种,例如用于装饰餐具,包括聚合物树脂和水和共溶剂中的贵金属硫酸盐的溶液,所述组合物含有贵金属硫酸盐的3-22%重量,共溶剂、树脂和硫酸盐的组合物在基底上干燥并逐渐加热时,水蒸发,留下共溶剂中树脂和硫酸盐的均匀组合物,然后共溶剂蒸发,留下硫酸盐在树脂中的均匀组合物,然后硫酸盐分解成贵金属,而树脂挥发。