Abstract: The present invention relates to a functional pressure-sensitive composition having high heat resistance and bending resistance characteristics, including: 40 to 55 wt % of a urethane acrylate oligomer, 30 to 44 wt % of an acrylate monomer, 2 to 5 wt % of a photoinitiator, 0.2 to 2 wt % of a silane coupling agent, 0.1 to 1 wt % of a light stabilizer, 0.1 to 1 wt % of an ultraviolet absorber and 0.1 to 1 wt % of an antioxidant, and an electrical component with a 3D structure using the same.

Abstract: A shape-memory polyester prepolymer is prepared with at least one kind of dicarboxylic acid component and at least one kind of diol, triol or polyol component in such a way to have unsaturated end group, wherein the dicarboxylic acid component comprises aromatic dicarboxylic acid in an amount of not less than 80% by mole based on the total mole of the dicarboxylic acid component; the diol component comprises a diol containing 2-10 carbon atoms in an amount of not less than 80% by mole based on the total mole of the diol component; a repeating unit of the ester bond ranging in number from 2 to 50; and the end group has crosslinkable, ethylenically unsaturated bond. The prepolymer shows particularly excellent heat resistance and excellent chemical resistance and also exhibits excellent transparency.