PROCESS OF MODULAR PHOTOPOLYMERIZATION, PHOTOPOLYMERIZING COMPOSITION Russian patent published in 1999 - IPC

FIELD: optics. SUBSTANCE: invention can be recommended for processes of solidification of photopolymerizing compositions, for production of prints of precision optical surfaces of type of microsolutions, relief phase holograms, Fresnel lenses, code discs made on light-sensitive materials, for manufacture of various decorative materials with color and light effects. Photopolymerizing composition includes polymerization-contributing component 100 parts by weight, for instance, monomer or mixture of monomers, ortho-chinons 0.005-0.1 parts by weight, for instance, ortho-benzo-chinon or mixture of ortho-benzo-chinons, reducing agent capable of reducing ortho-benzo-chinons in photoexcited state 0.5-10.0 parts by weight and radical thermal initiator inert to reducing agent. Apart from them composition can be injected with polymer additions, for instance, polymethyl acrylate, dakryl, polyvinylchloride. Prepared photopolymerizing composition is poured into space of mould and is exposed to visible radiation with wave length from 500 to 650 nm in the course of 0.5 to 100.0 min. After this process of thermal after-polymerization by any source of heat at temperatures from 50 to 100 C in conducted in the course of 10 to 60 min. EFFECT: production of photopolymer glasses of large thickness uniform by their properties. 7 cl, 2 tbl