AbstractCommercially available Araldite™‐type polymers have been modified with cinnamic and furan acrylic acid chlorides. The polymers were photochemically crosslinked via a [2 + 2] cycloaddition. The resulting polymers show glass transition temperatures up to 130°C and dielectrical constants of ϵr= 3.0. Therefore, these polymers can be applied as permanent resists in multi‐layered wiring structures. Numerous well‐defined multifunctional modifiers have been synthesized. The effect of those modifiers on the polymerization and properties of the araldite‐type polymers has been studied in