申请人:3M INNOVATIVE PROPERTIES COMPANY
公开号:US10329460B2
公开(公告)日:2019-06-25
An adhesive composition for joining optical components is described. The adhesive composition comprises at least one epoxy resin, a visible light photoinitiating system comprising at least one of a cationic photoinitiator and a sensitizer, a polyol and at least 50 wt. % of a nanoparticle filler. The visible light photoinitiating system includes at least one of a cationic photoinitiator and a sensitizer and the nanoparticle filler comprises a first nanoparticle having a first nominal size and a second nanoparticle having a second size. The adhesive composition has a refractive index between 1.44 and 1.47 and a dn/dT of less than −2E−4 when cured.
描述了一种用于连接光学元件的粘合剂组合物。该粘合剂组合物包括至少一种环氧树脂、由阳离子光引发剂和敏化剂中的至少一种组成的可见光光引发体系、多元醇和至少 50 重量%的纳米粒子填料。可见光光引发体系包括阳离子光引发剂和敏化剂中的至少一种,纳米粒子填料包括具有第一标称尺寸的第一纳米粒子和具有第二尺寸的第二纳米粒子。粘合剂组合物的折射率在 1.44 和 1.47 之间,固化时的 dn/dT 小于 -2E-4。