Patents Assigned to Fujian Blue Ocean & Black Stone Technology Co., Ltd.
  • Patent number: 11840647
    Abstract: The present invention refers to a recyclable conductive adhesive composition for LED packaging and preparation method thereof, and its recycling method and the obtained recycled conductive silver powder, wherein the recyclable conductive adhesive composition for LED packaging comprises epoxy resin, epoxy resin diluent, curing agent containing imine bond, amine curing agent, curing accelerator, wetting dispersant, coupling agent, defoamer and conductive silver powder. The epoxy curing agent containing imine bond adopted in the present invention can introduce the dynamic imine chemical bond into the epoxy resin matrix of the conductive adhesive by curing reaction, and can endow the epoxy resin matrix with degradable function by its imine bond's feature of occurring dynamic exchange reaction with amine solvent under heating condition, therefore the conductive silver powder in the conductive adhesive can be recycled and reused.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: December 12, 2023
    Assignee: Fujian Blue Ocean & Black Stone Technology Co., Ltd.
    Inventors: Wanshuang Liu, Yi Wei, Hebin Luo