Patent No. U.S. 7,649,027 B2
Kansai Paint Company has been granted a patent for a process for producing a polymer, which is comprised of a step of carrying out photopolymerization of at least one photopolymerizable polymerization precursor containing a photocurable compound having two or more unsaturated bonds by irradiation with active energy ray in a supercritical fluid or subcritical fluid in the presence of at least one additive component comprised of at least one organometal complex for adding a polymer function to produce a polymer having juts containing the additive component.