申请人:SENJU METAL INDUSTRY CO., LTD.
公开号:US10987764B2
公开(公告)日:2021-04-27
It is an object of the present invention to provide a flux containing flux components homogeneously dispersed without precipitation of aggregates in addition to having an appropriate balance between fluidity and shape retention property, and a solder paste. A flux comprising 0.5 to 3.5 mass % of a sorbitol-type thixotropic agent selected from the group consisting of dibenzylidene sorbitol, bis(4-methylbenzylidene)sorbitol and a combination thereof, and 2 to 350 mass ppm of a sorbitol-type additive selected from the group consisting of sorbitol, monobenzylidene sorbitol, mono(4-methylbenzylidene)sorbitol and a combination thereof, and a glycol ether-type solvent.
本发明的目的是提供一种助焊剂,其中的助焊剂成分不仅在流动性和形状保持性能之间取得适当平衡,而且分散均匀,不会析出团聚体。助焊剂包含 0.5 至 3.5 质量%的山梨醇型触变剂,该触变剂选自二亚苄基山梨醇、双(4-甲基亚苄基)山梨醇及其组合,以及 2 至 350 质量 ppm 的山梨醇型添加剂,该添加剂选自山梨醇、单亚苄基山梨醇、单(4-甲基亚苄基)山梨醇及其组合,以及乙二醇醚类溶剂。