Novel full acrylic interpenetrating polymer networks (IPNs) made up of the Poly Ethyl- Hexyl Acrylate (PEHA) and Poly Butyl-Acrylate (PABu) networks with various crosslinking ratios were characterized by means of Infrared spectroscopy, swelling, DSC and TGA techniques. The systems are prepared via photo-polymerization by UV-curing of monomers in the presence of a difunctional crosslinker and a photo-initiator. The physical properties of the IPNs are mainly influenced by the quantity of the monomer present in the IPNs and increasing the crosslinker prevents formation of unreacted oligomers inside the IPNs. Surprisingly, the IPNs with 0.5% crosslinker does not present any phase separation.